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What would cause a turbo 400 transmission to not go into any gear until it wants to. It will sit for any length of time and then go into gear. after that it shifts fine until you shut the truck off and let it sit for a while. It goes into forward and reverse and drives just fine after it decides to go into gear. 1990 chevy 3500

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  • 919 Answers

Sounds like a blocked transmission oil filter or front oil pump problem. Have you had the transmission serviced (e.g. flushed with fluid and filter replaced)?

Posted on Mar 28, 2015

  • russ Mar 29, 2015

    I will try that. Haven't done anything to it yet . Just bought it. I think I will try the flush and filter



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Posted on Jan 02, 2017

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SOURCE: 1999 F250 only goes in reverse, no forward gears.

I believe that reverse is operated by a brake band. So it seems to be stuck. It is operated by a piston, and the seal could have swelled and caused too much friction. But you could loosen up the adjustor so that it is disengaged, in order to get forward gears again. Perhaps you can force the piston to retract as well, once you drop the pan again.

Posted on Jun 26, 2009

  • 7 Answers

SOURCE: truck only goes in reverse

You are going to need to either replace the tranny or rebuild it from the sound of it. The one possiblity is that you are low on fluid. If that is the case it could be causeing your problems

Posted on Aug 25, 2009

  • 1118 Answers

SOURCE: reverse is slipping in my turbo 400

Out side of a replacement or rebuild your options are limited most all turbos i have had in my 4x4's reverse is the first gear to go out, you can try an additive like lucas or something like that and see, your only out the price of it, but before you do that pull the dip stick and smell the fluid if it smells burnt don't waist you money on the additive and put it tords another trans. or a rebuild.

Posted on Nov 12, 2009

  • 635 Answers

SOURCE: turbo 350 trans no forward gears but does have reverse

It's either your servo, or your bands.
Either way, the tranny needs a good cheap shop repair.
I'd just get a warrantied salvage yard tranny if I were you and save a few hundred bucks.

Posted on Mar 07, 2010

  • 1 Answer

SOURCE: transmission hesitates going into reverse only!

Solenoid Pack in the transmission is going out of it. I have put two in mine...both under warranty in my 2000 Explorer

Posted on Feb 24, 2012

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