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14 years ago
2000 Silverado with high idle
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14 years ago
On Thu, 10 Sep 2009 05:33:20 -0700, Sibernewf fired up the etcha-a-sketch and scratched out:
Just a guess, but did the idle issue occur before the battery? If not, you may have blown out your computer as well. That could cause inconsistent O2 readings, which would force the system to run rich or lean or both depending on the moment.
If it is running rich, you might look into the injectors or cat.
You could also check for a clogged EGR valve.
What do you have - the 4.3L V6, 4.8 or the 5.3 V8 model or the 2500 with the 6.0?
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14 years ago
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14 years ago
On Fri, 11 Sep 2009 10:36:33 -0700, Sibernewf fired up the etcha-a-sketch and scratched out:
I was just going to suggest running some Seafoam through it first. Google around and you'll see how to add seafoam to the engine. It will clear out your injectors for a start.
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14 years ago
First thing I would suggest is to disconnect the battery. let it set for
20-30 minutes and reconnect. I have seen more than one vehicle seem to lose the initial settings from a power spike.Next would be to make SURE ALL the fuses are OK. Then check for a loose vacuum line on the rear of the engine. Then throw a scan tool on it and see what it is seeing from the ECM.
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14 years ago
Throttle Sensor was on the fritz. New one in and back in action. Curious though if the surge from last week blew it or did it go on its own..