Question about 1991 Cadillac DeVille
I've replaced the #5 15 amp relay fuse that controls the trans shift,air conditioning,power steering pressure sensor and egr modulator and the #5 15 amp fuse keeps blowing when i start the car and the trans goes back to default 3rd gear,i disconnected the wire plug to the air conditioner and it still blew the fuse so i put in a 25 amp fuse and so far its holding and the tans is shifting great,the engine runs better and the steering is back to normal but im not comfortable having that high of a fuse in it's place! Why does the 15 amp fuse keep blowing and where do i start looking for the short or any defective parts?I'd really appreciate any knowledge in this matter thank you
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Posted on Jan 02, 2017
You don't have torque converter shudder. You don't even mention that in your original post! You def had a solenoid issue. My 94 STS did the same thing. I only had reverse, 1st and 2nd gear. Wouldn't shift outa 2nd period. It was a $200 solenoid repair. Car had a 160K on it when that happened. I have almost 170k on it now. Shifts and works fine. you don't need the tranny replaces ad josavv63 indicates.
Posted on Apr 26, 2009
I can't locate the under dash fuse block on my 92 cad sts. Help please. The AC/Heat blower will not come on, I think I have a blown fuse.
Posted on Jun 12, 2009
Transmission repair show would be my suggestion. This sounds like the manual shift valve has a mind of its own as well as the ECU thats running your transmission.
Posted on Apr 14, 2010
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