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'89 G30 350 severe tranny leak | Joined: Jun 2017 Posts: 18 Likes: 1 stranger | OP stranger Joined: Jun 2017 Posts: 18 Likes: 1 | Hey,
Other day found the van dripping tranny fluid from the lower radiator hose. The transmission cooler lines are dry on each end but dirty, slightly rusty, and wet in the middle section. these are first on my suspect list. The vacuum solenoid thing on the side of the trans seems to be working. its still pulling a vacuum. There is fluid sprayed all over the front of the engine bay so I am about to clean it all down to try and find the leak. The PO replaced the head gaskets but didn't clean the oil leak so this thing is pretty filthy.
I topped up the fluid to drive it around the the corner to park it in the garage to work on it. I found a substantial amount of fluid on top of the air filter cover after I took the doghouse off. Not sure how all of that got up there and was wondering if anyone could help point me in the right direction.
Thanks,
Last edited by tyteric; November 17th 2017 2:55 pm.
2005 ASTRO CARGO LIFTED 4WD 1989 G30 TBI CARGO with TMW
| | | Re: '89 G30 350 severe tranny leak | Joined: Jun 2010 Posts: 18,308 Likes: 569 | Joined: Jun 2010 Posts: 18,308 Likes: 569 | Welcome to the site tyteric .... Love the 1 ton's
People more knowledgeable then me will have to help you on this one ...
Again welcome..
SUNSHINE VANS-VAN DIEGO ADRENALIN BY THE GALLON & CHASIN RACIN ONE FOR THE DIRT & ONE FOR THE STREETS '93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB '92 CHEVY G30 454 BEAUVILLE EXT 146" WB | | | Re: '89 G30 350 severe tranny leak | Joined: Nov 2013 Posts: 2,320 Likes: 156 veteran | veteran Joined: Nov 2013 Posts: 2,320 Likes: 156 | Hey tyteric, Welcome to the site. Fellow G30 owner. WooHoo! Transmission fluid is flammable. Do not operate the vehicle on the street. Momentarily, to spot the leak, with a helper, is ok. It sounds like a leak in one of those hard lines to the cooler is spraying into the fan. Crude repair would be to find the hole, cut the line, and clamp a section of rubber hose in there.
Total RoadKill, but safer than not. For sure. Safety First!
BBC Blue 1990 Chevy G30 L19 7.4 EXT Church Van, maternity division DogVan 2.0 1996 Chevy G30 EXT Cargo. 5.7 Back in the Smallblock again. G30. All the good stuff. Yes. In 1996 Flint produced 16,239 matching make and models of Chevy G30 vans. https://www.compnine.com/mycar.php?id=530e2410271dd67a0354482f9eb1c6b3 Cabin Cruiser '94 Dodge B350 www.xplorermotorhome.com/Xplorer MH model 230 230 hp LA series 360 Wedge MPI 5.9 A518 OD auto Finally, Dodge figures EFI out. Old vans are getting scarce! | | | Re: '89 G30 350 severe tranny leak | Joined: Jun 2017 Posts: 18 Likes: 1 stranger | OP stranger Joined: Jun 2017 Posts: 18 Likes: 1 | Thank's for the welcome guys,
I've cleaned it all up as much as I can got the cooler lines exposed and clean and as much of everything else I could.
Fired er up and got it up to temp and no tranny fluid leaks! Doesn't make any sense. No drips, no spray, nothing.
I did have the front end up on jack stands. I'll try dropping it down on the ground and trying again.
Not sure where to go from here.
2005 ASTRO CARGO LIFTED 4WD 1989 G30 TBI CARGO with TMW
| | | Re: '89 G30 350 severe tranny leak | Joined: Nov 2013 Posts: 2,320 Likes: 156 veteran | veteran Joined: Nov 2013 Posts: 2,320 Likes: 156 | Putting it in Drive and applying a little throttle with the brakes on will torque up the drivetrain and might expose a weak spot at a line or seal on the trans body. Look at the power steering too.
Might drive it a little. But berry carefully... Good luck solving the problem
BBC Blue 1990 Chevy G30 L19 7.4 EXT Church Van, maternity division DogVan 2.0 1996 Chevy G30 EXT Cargo. 5.7 Back in the Smallblock again. G30. All the good stuff. Yes. In 1996 Flint produced 16,239 matching make and models of Chevy G30 vans. https://www.compnine.com/mycar.php?id=530e2410271dd67a0354482f9eb1c6b3 Cabin Cruiser '94 Dodge B350 www.xplorermotorhome.com/Xplorer MH model 230 230 hp LA series 360 Wedge MPI 5.9 A518 OD auto Finally, Dodge figures EFI out. Old vans are getting scarce! | | | Re: '89 G30 350 severe tranny leak | Joined: Sep 2005 Posts: 9,879 Likes: 242 carpal tunnel | carpal tunnel Joined: Sep 2005 Posts: 9,879 Likes: 242 | I've had the drip-stick tube leak at the grommet, and the seal on the shift linkage drip. Neither sprayed fluid, they just dripped.
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