I have a 2006 gmc 2006 4x4 sierra sle
I took my truck to Chevrolet dealership to have it fixed.. The plugs and wires , intake
gaskets changed, 4 02 sensors. Still idling rough and misses a little going down the road
once in awhile. They called GM company and they said change the fuel pump
modulator. But they not sure that will work. But every time they lets do this it cost me
money. I am up to $1200 and if they change fuel pump it will be another $750+++. I need
what is wrong with my truck I can not what if. It cost to much. Help me please.
Hey buddy, as you found out some dealers like to replace parts vs performing any diagnostic work. You could complain to the dealer management that you spend all that money and it still isn't fixed and see if they will fix it for no more cost. But I'd find a local independent garage and have them look it over for you. I'm sure it isn't the fuel pump. More like a simple vacuum leak.
You didn't mention anything about any injector service, I'd put some "SeaFoam" in the fuel tank on your next fill up and try that, most parts store have it, runs about 10 bucks a can, cured my Tahoe s intermittent misfire.
Do you know anyone that is in Sampson co. Or Duplin co. I need it fix without spending a lot of money. I don't mine working it. If I can someone tell me what was wrong.
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