Stuttering and hesitation in my idle and when i begin to accelera
If the motor is idleing it stutters and acts like it wants to die sometimes it will die on me if i let it idle for about 5-10 minutes. Then when i am in drive its fine but when i am accelerating the motor stutters and hesitates, unless i really give it some gas then it will get up and go. I cant pass emissions either if that helps to diagnos the problem.Im thinking it might be the oxygen censor because that is what people have said so far, what do you guys think ?
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Hello and welcome to Fixya!
I suspect that you have a faulty MAF (mass air flow) sensor. The MAF controls the vacuum supply of the car and if there's irregularity on vacuum supply the car will surely stutter.
You may check the IACV (idle air control valve) too. If it's clogged with dirt, air won't pass that's why it stutters. Try to clean it with a carburetor cleaner. If cleaned and still acts up, have it replaced to resolve the issue.
Hope this helps and thank you for using Fixya! Have a good one!
I hade the same problem, but I figured it out, My car is a 1992 chevey lumina Base modle sadan, v6/3.1L This car is electricly based, regardless of your problem replace all Fuses and Relays your fule injection, heater cor, every thing. trust me.
MY CAR PROBLEM: car would stutter and want to die every time I came to a stop, or slowed down. When I start the car it would idle really high, when I shift in to drive it would go back to normal, for a little bit. I checked my electrical center located on passenger side under the hood. I found that my fule pump relay had blown out. this is the main reason for fule pump going out. theas fuses are the real thing that makes this car run. replace them all. thay are like 20.00 dollars a pop but it will save you hundreds.
SECOND: bought a bottle of fule injection cleaner. spray this into your throttle body, connected to the air filter. lots of gunk. after that car stopped stuttering and has not died yet. I did my maintance on 7/15/08