What Would Cause The Transmission Downshifts Whenever It Wants To?

Asked by Dec 16, 2015 at 08:12 AM about the 1994 Chevrolet Blazer Sport 4WD

Question type: Maintenance & Repair

Its My Grandad's, The Guy He Got It From Put
Three Different Transmissions In It. He Said If I
Could Fix it I Could Have It. Thought It Might Be
The Passing Linkage Or Something With The
Computer. Any Ideas?

4 Answers

37,955

So did you check the kick down linkage? That would be my first thought. So if you take it easy on the gas pedal, not pushing it down very far will it go threw the gears then?

Best Answer

That's What I Thought, But That Model Doesn't Have It. I Haven't Gotten To Drive It Yet. Friday I'm Going To Look At It & See What Happens.

16,195

the trans uses the tps and the vehicle speed sensor for trans operation. does the speedo ever go erratic? You can test the tps with an ohm meter, or just replace it. What gears is it downshifting from? and what does it downshift to? or is it just completly random. any kind of info on that will help greatly

1 out of 1 people think this is helpful.

I'll Check All That Tomorrow Morning When I Get Off Work. Thanks.

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