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Daryl
Daryl, Shop Owner, Certified Mechanic
Category: Car
Satisfied Customers: 12549
Experience:  28 years experience, Master Mechanic
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2003 envoy tranny will not engage any gear.causes?

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2003 envoy tranny will not engage any gear.causes?

Were you having a problem before the fluid and filter change?

Customer: replied 5 years ago.

No

Too much fluid would not cause this problem, I would be suspecting that the filter maybe came off and the trans is not able to pick up the oil or maybe you knocked something loose when the filter was installed.
Customer: replied 5 years ago.
Are there any other possibilities you can think of?
Not any that would have showed up just because of a fluid and filter change.
Customer: replied 5 years ago.
Is there a specific diagnostic test to check modules or the the check engine light have to be one to run a diagnostic test? Could this be a bad module of some kind?
If it does not move in forward or reverse it would not be a electronic/module related problem reverse is only mechanical and is not affected by a module. So the problem would have to be one of the things I listed or a complete trans failure.
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