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Neal, Chevy Mechanic
Category: Chevy
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Experience:  Shop Owner and Mechanic on multiple makes.
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1994 chevy silverado 1500 automatic trans and 350 V8. Transmission

Resolved Question:

1994 chevy silverado 1500 automatic trans and 350 V8. Transmission shifts fine for a day or two then it stays in a higher gear and does not shift. The next day it might shift ok.
I have changed fluid and filter - previous fluid and filter did not look burnt or dirty.

What is causing erattic shifting?
Submitted: 5 years ago.
Category: Chevy
Expert:  Neal replied 5 years ago.

I'm Neal and I am here to assist you. Only accept when you are happy with my assistance. If I can't help I will open your Question to other experts.


You are looking at a solenoid issue or a computer issue, most likely a solenoid problem as it is common for them to be intermittant. It could be a shift solenoid or a pressure solenoid based on your symptoms. I will take a diagnostic by a transmission shop to narrow it down for sure.


Here are the locations.



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