Can I speak to a mechanic

Can I speak to a mechanic ...

Can I speak to a mechanic

Automotive Expert
Hi my name is \*\*\*\*\* \*\*\*\*\* I'll be more than happy to assist you, but we need to know the year, make, model, [engine](/topics-engine-gmc/) size, and the problem you are having so that the appropriate expert can help. thank you

1994 gmc sierra 4x4 5.7L V8Transmission not shifting into 3rd or 4th gear, shifts 1st to 2nd a little hard, when it shifts to 3rd the rpms just keep climbing but doesn't slip and rev up.
Automotive Expert
have you checked the transmission fluid level, color, and smell?

Transmission fluid level is good, smells a little burnt and is a little darker than it should be.
Automotive Expert
ok. drain and refill the tranny fluid. it should be a nice reddish/pink color and not smell burnt. that a beginning point

Ive checked all the wiring, and connectors. I've troubleshot the pcm and it has a good 5v and the signal wire is good. Its pulling code 13, 22, 42, 44
Automotive Expert
standby please, but you need to drain and refill the tranny fluid. it should be a nice reddish/pink color and not smell burnt.

I understand, but there has to be a reason to start this all of a sudden, and to start pulling codes.
Automotive Expert
New expert here my name is\*\*\*\*\* fault codes you have listed are all engine related codes and in no way effect the operation of the transmission. As your previous suggested, removing the pan and doing a visual inspection is in your best interest in this situation. Based on your description I actually believe you have an internal problem with the trans that is going to mean you are looking at replacement or rebuild, unfortunately. I hope you found this information helpful. Please let me know if you need additional information regarding this problem. Thanks.

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