The fluid leak may be at the back of the transmission by the vent. If a bearing is failing, or some other hard parts are experiencing abnormal wear they can generate Aug 15, 2010 · 4 Answers. Removing the dipstick alleviates this. The dipstick tubes need a vent, or remove the vent on the trans and extend it up higher at firewall etc. 250 to facilitate better drain back and prevent front seal blow out: Front seal blow-out seems to be more common in the first gen 4L80Es (91-96) compared to 2nd gen, 97+ Clutch Module: The TH400 and 4L80Es aren't too fussy when it comes to clutch material. “Pay Attention Transmission fluid check should be done with the vehicle on a level surface and at normal operating temperature. I was wondering if anyone had experienced this problem before and what the cause could be. it went pretty well. by Scaffidiben » Thu Sep 25, 2003 2:28 am. powersmok Discussion starter. I changed the fluid and it looked fine, and I thought the problem was I added to much fluid at the 100 hr service. #1 · Mar 14, 2024 (Edited) I have a '66 Ford Fairlane with its original transmission. There's no pressure inside the trans case unless the hose was plugged by one of those little hole spiders and some pressure built up until it blew the spider web out. #1 · Oct 4, 2018. Hope you enjoy!On Facebook at https://www. During a driving class at Watkins Glen I had a problem with transmission fluid leaking out the vent tube on top of the 700r4 transmission in my 1989 Corvette. #4 · Sep 13, 2014. Tranny shifts great just over heats flushed three times three different filters nothing on the magnet. I installed it in the car, and just about every time I drove it, it pushed fluid out of the dipstick tube. I wanna say the vent is on top of the center section. I recently rebuilt a 1979 14B full floater and put it under my truck for a 1-ton axle swap. At higher RPMs (highway speeds) oil would pour out of the blowby tube and cover the underside of the truck. Mar 2, 2009 · Whether the fluid level is high, low or in between, or if different weight oil was used, it would still happen. Put the valve in, check the clutches (they where fine), and slammed it back in. Dec 27, 2007 · 1. Chevy 04. Also replace your pump bolt washers they will crack or add lit Jun 10, 2010 · tranny fluid out vent. #1 ·Dec 27, 2013. 65SuperSport Posted 7/2/2012 07:55 (#2461847 - in reply to #2461794) Subject: Re: Chevy 700R4 Trans Leak Jan 13, 2022 · 1 post · Joined 2022. The slipping is easy. There were no cooler restrictions or filter problems and there was no evidence of cavitation. 4. The rear seal can be replaced by just removing the Driveshaft, prying out the old seal, tapping in a new seal. Sport Appearance Package | Roof Racks. Normal operating temperature is 96°C (206°F) to 101°C (215°F). Another possible cause is a clogged or damaged breather tube, which can prevent Oct 5, 2014 · It was just missing a valve in the pump and guess that was causing a internal pressure spike and pushing the fluid out the vent. I had to replace the check valve and the gasket between the tranny and transfer Aug 7, 2010 · Run the engine for at least one minute. Loosen the clamp and disconnect the air cleaner outlet pipe from the throttle body. When checking the fluid, the transmission temperature must be 150°F-170°F. If it is coming out the tube and doesn't have a stick that seals , little flip lever on top, that would be first thing to try. Recently swapped my 5R110 transmission for a used unit on my 2003 F250 6. Sep 4, 2012 · Its probably blowing out vent mine did that as well ran hose from vent tube mounted a rad overflow tank on firewall, hose going in bottom fills tank and drains back after run. Shortly after that it began leaking from the output shaft. A test: Heat the engine up and attempt to remove the dipstick Jul 5, 2022 · 3710 posts · Joined 2014. The 46 series trannys have a small quirk in them. Nov 27, 2012 · Kansas. I have a 98 K3500 4x4 RCLB with the 7. 5 nlu, Dana 60 true trac 3. This is the rear drive unit vent location. 8L Blows tranny fluid out vent tube Posted to Ford Transmission on 8/9/2007 12 Replies I am trying to get a jump on this "good" customers problem. Mar 15, 2014 · P. 56 gears and a grizzly locker. The linkage and drive shaft has to be removed,then unbolt the transmission from the bell housing. Pulled the vent tube off and inspected for cracks. I popped the hood and there is diff fluid all over the place around the top of the vent tube. Former Ford Automatic Transmission Engineer. Mar 18, 2008 · C. Nov 18, 2018 / hydraulic fluid coming out vent #3. Then the converter bushing, converter seal, outer pump o-ring and replace the gaskets or o-rings under the pump bolts. Jul 15, 2011 · I found this It may help. Complaint: After overhaul, a 4L70E has a complaint of transmission fluid leaking from the transmission vent. The cup will overflow the 6 ounces but will not "leak out" any of the liquid in the cup. The tube does have the plastic vent in it. fa Sep 3, 2010 · When the transmission is full it will push it up and out for a while. Mark. 73 gears and the 4l80e trans for my tow rig. It is not leaking out the front seal, rear seal, transmission cooler lines, etc. I have an issue with a NP241 transfer case in 1992 Chevy 1500 (behind a 700R4) puking fluid out of the vent line. 30@ 147 on 19 lbs. OK, have not been driving the van much. #1 · Apr 3, 2011. Aug 7, 2011 · Two things can cause this. If too much air does enter into the system, the fluid will become aerated which can cause it to rise up and be expelled out of the vent or fill tube. If its come out foaming, then its getting air and whipping it up or pickup screen is getting clogged. If it's foamy like a milkshake, you got water in the transmission. That plug is currently held in place by permamgasket and needs to be replaced properly. 1 2. I set the fluid level at 170°F and in the middle of the crosshatch's. It can pull air in there and foam the fluid, which will also let it puke out the dipstick or vent possibly. | AWD | Pano Roof | Tow Package. Disconnect the transmission-fluid return line at the transmission - from where the ATF returns to the transmission from the cooler. #1 · Apr 9, 2011. 4. I have a 434cui DART sbc, an 8" ATI Treemaster converter and a pretty large oil cooler. Runs and shifts great but now it's started blowing tranny fluid out the dipstick. Apr 3, 2011 · TW Discussion starter. Torque converter is old (supposedly off a 64 GTO). Got a recently rebuilt turbo 350 trans with a manual valve body and 2400 stall converter. Just bought a 2002 Excursion to tow my 31ft travel travel trailer (5700 dry weight). Jan 13, 2014. Apply the service brakes and shift to D, DRIVE, then to N, NEUTRAL, and then shift to R, REVERSE, in order to fill the hydraulic system. This is not a leak around the trans filler tube, as the fluid actually comes out from the top. Should have checked tranny fluid beforehand but I did not. Sep 27, 2008 · 70monte. I just rebuilt a TH400 and it is leaking from the vent tube. Apr 14, 2021 · Published: April 14, 2021. This is where the second person comes in handy. The trans fluid level was perfect. Aug 16, 2007 · I poured about 5 quarts of ATF into the dipstick hole and started the truck. Same thing happened to mine last summer. Saw smoke behind me (fluid on the exhaust pipe), pulled over and the back of the car had a good misting of fluid. Hey guys. The last issue is heat. I have a 2005 2500hd Sierra crew can 4x4 6. May 28, 2007 · TH350 Puking fluid out of vent. Clamp the clear tubing over the line that you removed from the transmission. Make sure and keep the dipstick tube in when you do it. And it will be overfilled, when it stops leaking out of the vent because the vent is at the top. S 4l80E, ptc 9. 4110 lb truck @ 8. That does not mean that it couldn't be something else, but these are the reasons most common for this condition per GM's service manual. After you fix it then change your engine oil and filter too. - The valve body or one of the operating pressure apply piston assemblies (clutch or band apply or an accumulator) is leaking past a seal flooding the pan with high pressure oil. They dont pump fluid in park! This is why extended idling is bad for them. May 13, 2015 · Tweet. The minute you raise the rear float and let fuel into the secondary bowl, the car begins to flood. During cold weather, a small, red fluid leak may be noticed on some 2001-2010 Silverado and Sierra 2500HD-3500HD series models equipped with the Allison LCT1000 transmission (RPO M74, MW7). The dipstick unseats and releases the air or the restricted vent allows small amounts of air through at high pressure bringing foamed fluid with it. In response to sergs0000. If its clean then check for a return line restriction. 3 yrs ago I "upgraded" to the AFE trans pan for 2008-2010 and put the new filter in with it. Condition/Concern: Transmission fluid coming out of the transmission vent hose on either the 4L80E or 4L85E transmissions. Hello, this is really not a very common problem. I think it is a combination of the front running hot from high speed 4x4, reverse rotation, and the steep angle when running up those Feb 4, 2021 · 4270 posts · Joined 2014. #2 · Dec 27, 2007. 3 L) of MERCON ® ULV automatic transmission fluid XT-12-QULV is needed. Release the air cleaner housing clamp (s). 55 9. It may be leaking from other areas as well. Unfortunately you need to drop the transfer case out in order to fix it. May 13, 2015, 10:12 AM. Jul 18, 2013 · My 93 740i w/ 203,000 miles just recently decided to blow a lot of tranny fluid out the vent hole on a two hour interstate run. It even leaks when the dipstick is out (no pressure)I am no expert and it's most likely something I did. It leaks out from the vent or around the vent on the back. #6 · Sep 8, 2013. com/channel/UC-SM8TvHt6tJEH6a8TJ37vQ?view_as=subscriber Jul 31, 2014 · Received 899 Likes on 748 Posts. #1 · Jan 13, 2022. Fluid level is perfect, and running the good stuff (Royal Purple). #1. Jump to Latest 21 - 30 of 30 Posts. I replaced the output shaft seal twice. Unfortunately, I have no history on this tranny, so the Sep 8, 2013 · 797 posts · Joined 2004. You will already have the transmission out so that will cut the cost down maybe $45(1/2hr labor). This is where the fluid comes out. My buddy's splitter is doing the same thing. Pull the transmission again. Drained 4 quarts of extra fluid to attain the right level when hot. Aug 3, 2023 · Drill all 4L80E drain back ports to . Its a stock HP 60 from a 79 F-350. Nov 10, 2011 · 4l80 blowing fluid out of front. #9 · Feb 5, 2021. Sep 15, 2020 · Here it is! This series highlights the 4L80e Transmission overhaul procedure and modifications for improvements. It wasn't over filled, but about every 5 passes it would have may 2 ounces of fluid in it the overflow. I hope it helps. Disconnect the mass air flow (MAF) sensor electrical connector. Aug 20, 2007 · It happened once on an old farmall I had. 3. Oct 4, 2018 · 129 posts · Joined 2014. I just looked under mine and the tranny vent tube goes up and comes up between the firewall and the back side of the driver's side head. Other option is to push a wire through the vent. I blew the breather out (and blew tranny fluid everywhere) and put a dipstick with a good rubber seal on it but Apr 7, 2009 · The trans fluid is filled by adding the fluid down the trans dipstick tube. #1 · Apr 8, 2007. Figure 1. I would put a gauge on the trans immediately and watch what the temperature does. Check your transmission fluid after driving it to or from work. Jun 11, 2013 · Vent tube is near the exhaust manifold, on the right side. Vent tube is clear and open (ran a wire into it). Another 4L80E leak issue. Has it been serviced recently? Traded in my 2013 2. My son had this happen after a trans fluid change on a 97 Gran Prix. We are using the banjo fittings and the rear fitting has the extension. Overfilling or a plugged vent. #4 · Sep 29, 2008. 0 Powerstroke due to losing the direct clutch (3-5 slip and shudder in reverse). Possibly work to drill a hole in dipstick tube. Apr 19, 2010 · Fluid sometimes runs down the breather hose and drips onto the lower control arm. Mar 18, 2021 · I just bought a 2001 Suburban 2500 2WD 496 CI big block with 3. May 3, 2012 · Noticed it has been leaking fluid out of the vent tube for the front diff. This is with the engine running. In fact, I believe this is how my car has been running since I got it. It didn't spray out, or blow the dipstick out, it just seemed to seep up and out. it is because your fluid level is low after the oil spills out the dipstick. When pedaling the car to 5-7k rpm the transmission spray a flush of oil out of the air vent on top of the Mar 9, 2014 · 29566 posts · Joined 2009. 5 mph in the 1. I doubt it hurt anything in your engine unless the hydraulic system is real dirty. Jan 3, 2011 · My transmission is leaking out of the vent tube; what causes this, the cooler line or? I had the tranny shop put on a larger pan on the truck and since then is when I noticed it. The old fluid came out from the LOWER cooler line. It has thick cut 4. The rear end has a vent on it that is probably a 3/16 or 1/4 opening with multiple holes drilled in the sides to vent and prevent fluid from coming out. Mar 26, 2012 · 96024. S. 5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 Gallon replacement Aero tank, LBZ-mp, Kennedy pump, shimmed, Pre-fuel filter, tow mirrors, BU cam, gauges, GPS, Sirius, bags Apr 18, 2021 · The trans fluid was coming from the vent tube. #1 · Mar 15, 2014. Van sat another week, had a pretty big storm and I noticed a rainbow in the rain water, looked under the van and there is a big Mar 30, 2014 · My problem is I have a 99 sporty that pukes oil out of the trans breather hose after about 40 or so miles. Mar 18, 2022 · Another 4L80e running hot problem. Ran it that way 4 years never a problem. If you gently ease a little off the gas at 2700 rpm, not too much or rpms just drop, it will shift normal and smooth. If I remember correctly, there is a vent at the top of the trans (a small rubber hose), check it's not plugged. Newbie. If the vent hose is plugged, the tranny will puke out the dipstick tube when the fluid heats up during normal operation. If it's just a trickle of fuel, the secondary venturies get wet. 9250 posts · Joined 2002. Aug 17, 2012 · After cleaning the underside of the truck to isolate the source, it appears that my 4L60E is blowing tranny fluid out the overflow/vent tube at the top of the transmission . Filled it with 6 quarts and fired it. Follow the vent tube down to the transfer case and there will be a check valve with three tubes going into it. The trans does not slip at all and is very strong. My splitter just started spitting out hydraulic fluid through the vent hole in the reservoir cap. External Mirrors, Jensen Bluetooth Radio / Headset. If it is coming out of the breather vent, it won't register low. I lowered the fluid level till it was at the bottom of the full mark, but it still leaked oil out the vent. #1 · Jan 15, 2015. May 7, 2023 · Re: 4L80E blew out front seal and other issues 1/ Case vent is clogged 2/ At a minimum I would be replacing; front pump bushing, inspecting the pump gears, and the cast in pump crescent, front pump seal, possibly the torque converter if the neck has ANY damage where the seal, or bushing ride. #4 · Mar 9, 2014. 3412 posts · Joined 1999. 484 posts · Joined 2008. 12 posts · Joined 2009. I stopped for gas and noticed some fluid leaking from the front of the truck. I traced the fluid up to the clear vent hose that is directly above the cv boot. If I let in more fuel, it spurts out the vent tube. 99 153. I recently just added about 1/2 qt of hydraulic fluid to the reservoir but other than that nothing strange or out of the ordinary has happened. Pearl Blue 97 F150. Hose OK. Replace the converter. 4/4L80E. Blew air through it to make sure it wasn't clogged, reinstalled and changed fluid again. And once you get back and get parked it also leaks out around shifter shaft on side of primary. Quik1500 Discussion starter. We have been doing it this way for 10 years easy and never had a vehicle come back from leaking out of th Oct 4, 2012 · You will need the truck up far enough to take out the transmission. Special tools may be needed to pull and replace the seal. Oct 5, 2018 · This often results in the converter high pressure fill passage leaking into the vent passage. I have a 9" rear with 35spline axles and a spool. Use this to get the May 30, 2011 · I would call around some transmission shops and see what the charge to remove the bushing. May 14, 2013 · The Mercon LV fluid has a very high expansion rate compared to SP and if the fluid is not set just correctly, it can purge out of the vent. The used transmission shifts great but has a minor leak at the top of the transmission. no idea what would happen. My Grizz 660 is leaking gear oil out of the vent line where the two lines come up and T together. Apr 9, 2011 · 231 posts · Joined 2008. It appears it is coming out of the vent (checked with a mirror and flashlight Mar 14, 2024 · 3 posts · Joined 2024. Dec 24, 2013 · Make sure the fluid level in the trans is correct. Jan 1, 2012 · Float bottomed out. Could be the pump gasket in wrong. Mar 31, 2016 · 5761 posts · Joined 2010. It's from a little design flaw or poor communication from Allison and the other manufacturers. I have all the specs set within the correct range and the contact pattern was very good when I had it all set up. - When just left to sit the converter drain back valve is leaking Feb 23, 2008 · 91 toyota, 35 spline 60's front and rear, tbi 350, th350, np231 with 300 behind it, waggys up front, 4 link and air shocks out back, 42 Iroks and some more stuff, I forget Location: Wisconsin. Heard a pop and more fluid but NOW problem solved. Sep 13, 2014 · 18259 posts · Joined 2008. Be careful not to over-fill this trans. That's about the only thing that will cause tranny oil to come out of the breather hose. Location. Drained and changed the fluid. Ive checked the breather tube on top of the trans and the tranny cooler lines for blockage but they all seem to be in working Aug 4, 2006 · Check the neck portion of the filter where it goes into the valve body for hairline cracks. Been looking at old posts and seems the problem comes up a lot but no concrete answers on the cause. Yes, that's required. Transmission fluid needs to be changed since it is a brownish color. #2 · Jul 5, 2022. ckelly. The fluid is at the correct level, but when running the car, the fluid will rise and pour out from the top of the trans filler tube. Tractor. 5 gallons instead of 3 gallons because the ATF were looking clean after 2 gallons has already been pumped out. it will do that if it's over filled as well. I did a search and it seems everybody thinks it's the vent tube. Apr 8, 2007 · 760 posts · Joined 2001. Make sure you align your pump properly or else it will leak without you even starting the car. 0 qt. Level should be no higher than the case/pan interface point. The dipstick should have a 90 deg thumb operated latch to hold the stick into the tube. To avoid dripping on the garage floor my mechanic friend plugged the bottom line with a bolt today. # 3. I thought the filter that came with the AFE pan was OEM but discovered a while later it is actually an Jan 10, 2023 · 5R110 Leak Vent. Oct 26, 2005 · The pin head that put the flex plate in backwards also broke the tabs on the internal wire harness that hold the plug in place. Reply Like. I run a Rossler built 400 in the truck. S, Central, KY. Use small steel tube (1/4" ) brake line with short rubber on the ends. #1 · Mar 27, 2009. With the service brakes applied, put the transmission in the P, PARK, position. Mar 28, 2023 · During internal repair dry, a total of 13. This check valve is defective. So all of a sudden it just starts leaking fluid in reverse, slowly got worse over a week and now when reverse it pours out. Running in 4-hi. 109. / 5. Apr 14, 2013 · Took the cap off the vent at the top of the tranny and blew air through it. 97 @ 117 The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Check/confirm your dipstick is correct for the application. When you put it in 4WD and go faster than 40 mph, the gear lube would blow out the top of the front differential vent hose. The bottle the fluid comes in will (or should)have a tube at the nozzle. Barring the circumstance that you have over-filled the transmission with fluid, then it is possible that the internal filter is very dirty and/or partially clogged. But once it warms up it will engage in the gears right away (idle). He probably found the transmission vent hose, didn't know what it was or where it belonged, so he plugged it. The case of the tranny is painted flat black with dupli #4L80E Transmission Fluid Filter FlushVisit my Channel for 100's of other videos:https://www. If the trans was over filled, it can foam the oil and push out the vent. Because of the snow and ice on the roads, I used the 4x4 the whole way there which was 30 miles. I use B&M trick shift (conventional) fluid and a B&M Hi-Tek cooler mounted to front of radiator that is actively cooled by puller fans on the other side of radiator. Hey fellas, Just recently finished my first TH400 rebuild, and all things considered. Over recent years the transmission will leak fluid when stored for weeks or months. Without the spinning shaft info (above) I'll venture a guess. Went on a 100 mile round trip, opened her on the expressway for the first time in a while, everything seemed ok. Dec 26, 2013 · 793 posts · Joined 2009. Also make sure it's not overfilled. Trans fluid comes out of the fill tube on my 4l80e. With the car parked,run through all the gears and finish in neutral. #5 · Mar 19, 2008. Gone: X595 with heated cozy cab,stainless vertical exhaust. Then it will act normally. If a cooling line or cooler gets plugged it could puke all of the tranny fluid out of the vent tube on top of the tranny. Apparently there's Dec 24, 2007 · A 1970 Chevy automatic runs fine, except for trans fluis leaking. Added a few more, and it was off cruising. I went to the dealer and got one for it. 0 with a 4l80e that’s over heating and can’t figure out why. 0 Titanium for: 2017 Lightning Blue Titanium | 2. Additionally, an overfilled transmission 2002 Ford F-250 Super Duty XL 6. Ensure that the engine is at low idle RPM (500-800 RPM). Just bought an '84 Chevrolet 4X4 with a TH350 tranny. It will only start moving if you rev it up to around 3500 RPM. I’ve replaced the rad trans cooler cooler lines tranny temp sensor and the torque converter. Is it blowing out the diff fluid because I didn't have the plastic vent in the tube? May 2, 2015 · 4. Nothing comes out of the vent tube though. Mar 26, 2016 · Current: 3320 HST cab with 59" front blower, Hydraulic chute deflector, Vertical Exhaust, Front Fenders, Grooved and loaded Front and Rear R-4's. Mine seems to happen mostly in the sand dunes. Terramite T5C, Kubota M9540HDC24, F3990, RTV1100, Cat 416C, D3B, 955L. It has not thrown any codes and the drivability seems good when the level is Jan 22, 2021 · They will blow fluid out the vent on the back top of housing on the left side. I did similar process that 2500HDKartRacer does, except that I pumped out a total of 2. My first observation is when draining the fluid (I have a pan with a drain plug) is that it glugs. youtube. 5. I filled the transfer case up and over the course of several weeks it managed to spit out a quart of fluid. . See if it is really foamy. The fluid in a 46 must be checked in neutral, parking-brake on. It shows no C clip or other fastener holding it,just Mar 14, 2015 · Either way, fluid coming out of that vent is a bad sign and you need to figure out why it is happening. 04-24-15 04:25 AM - Post# 2542035. It has been set up this way for 6+ years and now it just started puking oil. C. Good evening, I have a bad problem with my TCI TH400 transmission (full manual competition 212000). 2. Took it for a test ride and upon returning found fluid on crossmember and a little on the front of my hitch. Jul 13, 2023 · My 05 Trailblazer LS with 165k on original engine and transmission started puking a little tranny fluid out of the lower vent tube onto the transfer case which leaked out to the ground daily about 4" diameter puddle after soaking in. Also if you refill it with more than 4 quarts before starting it, it will overflow out the tube. Whelen warning lights, JD366 front blade. Now. I was just about home after a 400 km drive when my transmission decided to blow all of the oil out of the dip stick hole. Brand new build from a trusted trans shop on a 1999 4L80e trans with the return port at the rear of the trans. There is a metal shield part way up that the vent tube goes behind. Im not sure exactly what you mean by "drain back channel" but Ill do some research. Transfer case is mostly stock with the exception of a JB super short SYE on it Jun 5, 2003 · The vent is open and clear. After checking engine oil level I believe that its leaking through the crank seal. May 4, 2020 · To avoid excessive air intake, it is important to ensure that the filter seal and any area between the filter and pump are not allowing in additional air. I recently identified fluid was dripping out of the vent tube. holes,etc. It just stays in 1st gear too long, until about 4k rpm then shifts hard. And as always, use ATF+3, or the higher +4 (interchangeable). Transmission fluid leaking from vent. Sometimes when transmissions get really hot they will vent as well. If you leave it off, the trans will not shift correctly. Owner built, owner abused. Also make sure there are two orings on the case end of the filter pickup tube. Jul 27, 2008 / HELP! Oil is pouring out of my breather tube! #3. A leaking cooler in the radiator, if you even have one, could let coolant leak into the trans causing it to be overfilled. You might want to pull the hydraulic pump and look at it. If the Vent tube on top of the Trans is clogged it will also cause leaks from pressure buildup from temp changes. Refilled according to manual with the correct type. Cause: The input speed sensor passage and the vent passage in the pump can be connected as shown in figure 1. 754 posts · Joined 1998. I was told this was normal. Now that I have the plastic vent in, it hasn't been able to blow out so far. (12. It has been leaking a few drops every day for the last 3 yrs. Take a cup, fill it to the top, then try to add 6 ounces. In four days it went down at least 3 pints. Dec 27, 2008 · When the truck is cold it acts like it doesn't have enough fluid. 48 posts · Joined 2013. If I take the car for a power run down the highway it will have fluid dripping off the rearend May 4, 2018 · Any restrictions of the vent cause high pressures causing fluid foaming and something to give. I first thought it was oil, but later realized it was trans fluid. Oct 2, 2006 · Check the vent on top of the tranny. Yup, remember those days well. Mar 27, 2009 · F. This condition may be caused by fluid being discharged out of Jul 3, 2023 · Transmission fluid coming out of dipstick is a sign of a serious problem in the transmission system. The vent is on top of the transmission. I noticed this after taking it on a day long ride, when I got back I noticed that gear oil had spewed out of the vent line and was all over the place. Aug 28, 2011 · 1. Get the vehicle up to operating temp. Hi guys, I just came back from a long trip and noticed fluid on the right side rear (passenger) cv boot. Disconnect the crankcase vent tube (s) from the air cleaner outlet pipe. Jan 28, 2009 · Today I drove the 98 K3500 to work. 90 Answers. Probably through the vent while driving through a large puddle. You now check the trans fluid level. I have a better exploded veiw of the T-5 at work and the vent tube looks to be held in by just a Oring. The hose ends between the driver's side battery and the radiator support. #4 · Apr 2, 2016. Front Hydraulics. Still did it. But also when it warms up it sprays tranny fluid out of the dipstick tube and all over the motor. Turns out it was the trans pan gasket. But I will send you the list of most probable causes from GM. The most common cause of this issue is overfilling of the transmission fluid, which can lead to excessive pressure and cause the fluid to leak out of the dipstick. It's a steady steam of fluid when the engine is running. 1967 Falcon 4 door 351C - 70 Mustang 351C. The hose is disconnected, don't know if the pressure caused it to pop off? When in Feb 14, 2010 · Transmission Fluid Out Dipstick. Aug 26, 2006 · Received 57 Likes on 40 Posts. I read from other posts that the converter can eventually drain into the transmission May 5, 2017 · Thanks Pat. Feb 17, 2013 · If a seal is bad above the pan mounting surface it will leak until the fluid level drops enough to stop. I'm not sure what would happen if the vent tube was plugged as it really vents hot gasses. Cut a hole in the lid of a peanut butter jar, slide it onto the blowby tube, affix a hose clamp to hold it in place then screw the bottom of the jar onto the lid. All this points to the vent being plugged, but it is open, the rebuilder confirmed. 0. flareside942000 Discussion starter. Oct 2, 2020 · 4L60E how we make sure it never leaks out the vent. . Feb 26, 2008 · The front diff tube on this truck did not have the plastic vent in the end of the tube like my 98 1/2 Z71 has. Jan 15, 2015 · 32 posts · Joined 2010. Sep 29, 2012 · 14 bolt spewing oil out vent.
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