S-10 & Blazer 1982-2005
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S10 1999- Dont know whats wrong with it

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Old October 26th, 2009, 3:42 PM
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Default S10 1999- Dont know whats wrong with it

The engine light came on, took it to advance auto, dont know the code but he said the o2 sensor, cylinder misfire, fuel injector, cylinder misfire.
i replaced the spark plugs and wires, coil packs, the rear o2 senor, poured in sea foam into the fuel injector. nothing, still the same
can somebody help me out, the engine is running roughly, shakes and barley goes when hit the gas pedal

Last edited by codye3m; October 26th, 2009 at 3:59 PM.
Old October 26th, 2009, 10:20 PM
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Replace the Rotor and Cap yet

yes / no

Yes, issue sounds like a spark strength. maybe time for distrubitor change

No, replace the cap and rotor. retest. report back
Old October 27th, 2009, 10:02 AM
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we think its was some bad gas, none of this was happing before i put the new gas in it
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