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Old 06-25-2008, 04:33 AM   #15
dafeeder
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Join Date: Aug 2004
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Re: Lumina stalls/hesitates/lunges

Quote:
Originally Posted by howboutthat
Hello, I have an old '91 lumina 3.1 @190k that was running great until the other day I first noticed a slight miss or hesitation as I was accelerating from a stop sign. It drove decent but has progressively gotten worse.
Now it seems to start fine and run fine until it gets good and warmed up then it really dogs it when trying to accelerate (especially when accelerating from a slow speed and pulling a load or up an incline).
If I give it a lot of accelerator it really cuts out, if I keep holding it down it will lunge almost in a 1 second rhythm until I ease off the gas enough where it will eventually run out ok.

I changed the fuel filter and added injector cleaner. Within the last year I changed the O2 sensor and about 50,000 miles ago I replaced the control module and the plugs about that time as well.

Any help or suggestions would be appreciated.
What was your problem in the end?
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