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Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 16027
Experience:  Have owned a repair shop for 25 yrs.
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I have a 1990 Chevrolet 1500 z71 4x4 the serpentine belt

Customer Question

I have a 1990 Chevrolet 1500 z71 4x4 the serpentine belt keeps slipping off a/c pulley every time I have a/c or heater on what is causing the problem
JA: How many miles are on the car?
Customer: 168k
JA: What is the model of your '90 Chevy?
Customer: Z71 off road efi
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes I have bypassed the a/c pulley
JA: Anything else you think the mechanic should know?
Customer: After a while of driving the service engine light comes on and engine acts like it's going to stall
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Chevy
Expert:  HDGENE replied 1 year ago.

Hello, the ac compressor is slugging, causing the belt to throw off when the ac is engaged, the fix for this would be to replace the compressor and ac belt tensioner with a new belt or eliminate the ac system and install a dummy pulley in its place.

Expert:  HDGENE replied 1 year ago.

Hello, do you need more help with this concern?

Expert:  Tim's Auto Repair replied 1 year ago.

Hi, My name is ***** ***** for the delay.

I will do my best to assist you.

Expert:  Tim's Auto Repair replied 1 year ago.

does the belt not jump off after you bypassed the a/c pump?