Tuffy Tire & Auto Service Center - Grandview
1524 W 5th Ave
Columbus, OH
Open
Closes 5:00 PM
Excite Auto Repair & Towing
3430 Westerville Road
Columbus, OH
Open
Closes 6:00 PM
All In Auto Service
5200 Fisher Road
Columbus, OH
Open
Closes 6:00 PM
What is your question?
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What is your question?
My 97 s10 4.3l is throwing a p0300 random misfire but it has all new spark plugs, wires, distributer, distributer capand fuel pump. The truck idles a little rough and when the rpm is to low and you give it gas it backfires. But when rpm is high and I'm giving some gas it runs smothley. What can my problem be?
What makes this problem better or worse?
Worse when rpm is low.
How long has your 1997 Chevrolet S10 had this problem?
1 week
1 Reply
Since the distributor was replaced and hopefully it was installed *exactly* right as it has got to be - *crankshaft variation relearn procedure* needs to be performed .. That syncs the cam and crank sensor signal .. Pro quality scan tool is required for relearn. Also may have a fuel injector problem - spider injector system may have a leaking injector. Fuel pressure gauge will reveal by checking for fuel system leak down after turning engine off.