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2012 Chevy silverado 4.8L tranny only has reverse no forward

My truck wont go forward in any gear but will go into reverse i cant figure out whats wrong i

2012 Chevy silverado 4.8L tranny only has reverse no forward

Postby pdog4288 [OP] » Apr 01 2020, 7:38am

I ran over some cones that are glued to the road but are still flimsy after that my truck started having issues first i pulled up to my gate to put in the code and went to far so i put it in reverse and it just reved nothing so i put it in drive and then reverse nothing so i put it in park and shut it off i waited and started it again and it worked it did this a few times to me later a few days in between each time so i was leaving somewhere and i gave it some gas and i heed a noise like a air compressor when u take the hose of not so much the air sound but the disconnection sound i kind of weird sound and then i had no forward movement i pulled over and tride the aame thing turning it off and still no movement then i put it in reverse and now its all it does is go in reverse no forward motion ive had people look at it but cant get a truthfull answer and icant afford to rebuild it or get a new one i still am paying for it i need to fix it so i can get to work its been almost 6 months and ive almost lost everything almost i really need help thanxs
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Re: 2012 Chevy silverado 4.8L tranny only has reverse no for

Postby Walkers » Apr 01 2020, 2:41pm

How many miles? Are you planning to keep it for a while? Checked the fluid level?
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Re: 2012 Chevy silverado 4.8L tranny only has reverse no for

Postby pdog4288 [OP] » Apr 01 2020, 3:49pm

It has 175000 miles i changed the fluid and filter after it happened the same day and it was pretty dark but after i added the fluid and went threw all the gears it was still the same thing only reverse so im not sure whats going on with it but i still owe 9775 for it and i want to fix it or sell it trade it in if i can i dont know i cant find anyone to trade it in i owe too much on it and it has too many miles
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Re: 2012 Chevy silverado 4.8L tranny only has reverse no for

Postby Spartan » Apr 01 2020, 4:40pm

This is super hard to read without any punctuation.
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Re: 2012 Chevy silverado 4.8L tranny only has reverse no for

Postby tsuintx » Apr 01 2020, 6:45pm

pdog4288 wrote:ive had people look at it but cant get a truthfull answer


What have these people told you after they looked at it?
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Re: 2012 Chevy silverado 4.8L tranny only has reverse no for

Postby pdog4288 [OP] » Apr 01 2020, 6:58pm

They want me to pay 3000 to have it rebuilt
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Re: 2012 Chevy silverado 4.8L tranny only has reverse no for

Postby tsuintx » Apr 01 2020, 7:55pm

If people tell you you need a rebuild, there's a chance you might actually need a rebuild. Price seems to be normal shop price to do it, I think. IIRC, the 4.8 still has 4L60E and quite a few of them do kick the bucket between 150-200K, so I wouldn't be surprised yours actually does need a rebuild.

Since you already tried changing the fluid, but it didn't help, I'm not sure what else you'd expect us to say other than you might be in need of a rebuild. I've had two 4L60Es rebuilt for just over a grand all in (parts, labor, converter, fluids and removal/installation), so it can be done for less than 3 grand you've been quoted. Just need to shop around.
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Re: 2012 Chevy silverado 4.8L tranny only has reverse no for

Postby jay smith » Apr 02 2020, 12:37am

if someone has looked at it they probably checked already. I'm wondering if one of those cones screwed up the gear selector on the side of the transmission. it will have a cable going to it that your gear shift moves. if the cable bracket is bent or something looks out of place maybe its not ligning up to drive properly.

chances are it does need a rebuild but you will get more cash for a working truck. i do agree with shopping around too.
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