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-   -   Searched and couldnt find this problem (https://www.gmforum.com/1992-1999-91/searched-couldnt-find-problem-265959/)

Golfvette 10-10-2007 06:28 PM

Searched and couldnt find this problem
 
I'm frustrated on this one..... I will be cruising along the highway and all of a sudden the "RPM's" will jump up 500 rpm's and then go back down. Also sometimes it will do the same thing sitting at a light and it will stall. The car always starts back up and has plenty of power. The engine runs great until this happens. I've replaced battery, alternator and O2 sensor. After searching some threads...Could it be the computer or maybe corroded battery cables? Please Help.

sonoma_zr2 10-10-2007 06:33 PM

welcome to the club, and could you put some info into your signature (make, model , year etc)

sounds like a vacuum problem

Golfvette 10-10-2007 06:38 PM

I've checked all the vacuum lines and some were split and dryrotted, so I replaced the bad one's. Forgot to include that in my thread.

Golfvette 10-10-2007 06:59 PM

Sorry can't figure out how to change member profile...Iam new. 1995 Bonneville 174,000 miles, Block has about 50,000.

banned3800 10-10-2007 08:10 PM

Quote:

Originally Posted by Golfvette
Sorry can't figure out how to change member profile...Iam new. 1995 Bonneville 174,000 miles, Block has about 50,000.

Clean the battery cables first...

When the stall happens does the car always restart?


Also as a test on a cooler day, Start the car and just let it idle... If it stall out, start it again and see if it will stall again..

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Golfvette 10-10-2007 08:25 PM

I've cleaned the battery cables......I wonder if I should just replace them? The car always restarts after the occasional stall. Engine runs great except once in a while. I've noticed it happens more when its hot outside then when its not, could be coincidental. The reason why I replaced O2 sensor was because a mechanic told me there was a code for rich mixture....FYI.

BillBoost37 10-11-2007 08:54 AM

To change your profile. Look up to the right..near the red car.....click on "Profile" then within the profile..add your year and model to the signature area of the profile. ;)

SSEBONNE4EVA 10-11-2007 12:27 PM

stall
 
When my car did that it was the ICM connector that was corroded. On intermitten cases like yours its best to remove all sensor connectors, terminals, grounds, and clean them, sometimes putting them on and off several times re-establishes a good contact.
I have also seen crank sensors cause this when getting hot. The fuel pressure and regulator should also be checked.


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