Hey all, I have a 97 Z , I was driving my car and noticed at a stop light that my ABS INOP light is on. I tried to to toggle the ASR on and off, but of course it didnt b/c of the ABS INOP. so then I tried to turn my A/C on and the RPM jumped to like 3000 and my speedo jumped to like 60MPH(even though the car wasnt moving, stopped at a stop light) for a second and the car felt like it shook a little bit and the RPM went back to like 800 and speedo back to 0, also, the airbag light flashed. so I turned off the A/C, the ABS INOP light is still on. just to see if it would happen again, i turn the A/C back on and this time the RPM and speedo jumped like before and the car shut off completely. I shifted it from OD back to park while still at the light and started her up, everything was okay, no ABS INOP, ASR works, I could turn the A/C on and off without the RPM or speedo jumping....But my Trip meter had reset to 0 and my clock had reset to 1:00. I notice my voltage on the voltmeter on my dash is between 13volts and where the red starts, so i guess like 12 - 12.5?? Also when i changed my belt, to a good year gator back about 2 weeks ago, it sounds like there's a small turbo whine under my hood. sounds like its coming from the Alternator, but I cant be sure....what do you all think, your help is always grateful.

 

That's wierd. But , Start with the battery and associated ground wires. Also PCM grounding.

 

will try to clean out all the contacts, battery and ground and see if it occours again, car runs fine since though....feel free to throw in any other suggestion i may try as well. thanks!

 

I gotta second Lyle's suggestion. Definately sounds like a loose ground or power cable.

 

I checked the battery and the positive connector was really corroded, i cleaned it up with some battery cleaner and a wire battery terminal cleaner and got it nice and clean...connected it back and everything is going fine so far, will monitor.

 

I checked the battery and the positive connector was really corroded, i cleaned it up with some battery cleaner and a wire battery terminal cleaner and got it nice and clean...connected it back and everything is going fine so far, will monitor.

 

Glad you found the problem.