Question about 2002 Chevrolet Tahoe

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Took our tahoe in for oil change they also put in fuel injector cleaner since the we have had a hard idle problem that happens between 0 to 5 miles an hour then occasional it dies after you first start it. what do you thin is wrong we change the spark plugs to bosch plugs and new wires and a new fuel filter but it still did the same thing. We had it read at and it is still saying 8 is the problem so we put in a new silinode what do you think?

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Most likely the fuel injector is the problem.

Posted on Jun 04, 2010


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this is one of those situations that a professional diag would of saved you alot of money. Its possible you just got bad gas and your injectors are partially clogged. An 02 sensor would not give multible misfires. EGR would only misfire at idle if stuck partially open since its suppose to be open cruising. Fuel filter would give you a starvation issue but if the misfires happens at idle then the filter most likley is ok.
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Hmm with 150,000 miles i really doubt anything
It could be just a coincidence.

They could have possibly left something in the oil pan that caused the pick up tube to become blocked somewhat.

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