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My 2003 GMC Sonoma starts fine, but after a warm up period will stall. It is a 4.6L 6 cylinder 2wd. It sounds at times like a helicopter and then like it is choking. Any ideas on what might be the problem?
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forums.edmunds.com > Chevrolet > Chevrolet S-10 Dec 15, 2007 - 30 posts - 22 authors
please someone..i need help.i have 1992 gmc sonoma 4.3 6 cyl 2wd .... I have a 2001chevy s10 4.3 4wd auto, it runs good until it's warmed up, then once it's ... the gas pedal causes bouncing on the tachometer and loss of power. ... when driving at a steady speed if I try to accelerate the engine tries to die
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the Distributor cap should be numbered. from when i last did mine i do believe that when i was facing the truck the drivers side of the cap went 5,3,1 and the passenger side went 2,4,6 and this is going from the back of the cap to the front. if all else fails you can just plug them in and you will notice the truck either running ruff or stalling/not starting. if so just swap the wires around till it works. hope this helps!
Sounds like an engine sensor, EGR valve or O2 sensor has failed. First thing to do is to look at the engine trouble codes to pin down the failure. You can usually borrow an OBD1 code checker from your local parts store.
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