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03-15-2015, 11:54 PM | #1 | |
AF Newbie
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Engine Surge
I have a 00 Silverado Z71 Ext. cab, 4.8 motor and auto trans. 264,000 miles. I noticed recently when driving down the highway at times the engine wil begin to surge. Usually between 40 and 50 MPH. if i let off the throttle it will smooth out or if I give it more throttle it will smooth out. Any ideas what would cause this??
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03-16-2015, 06:49 AM | #2 | |
A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
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Re: Engine Surge
Do a full scan, sluggish o2 sensor is one possibility.
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03-16-2015, 07:32 AM | #3 | ||
AF Fanatic
Join Date: Oct 2007
Location: EVERETT, Massachusetts
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Re: Engine Surge
Quote:
check pressure 52-62pSI.. replace fuel filter . then use the techron injector cleaner. make sure you have 1/3 tank of fuel at all times or more. if you operate with less than 1/3 often then the pump is most likely failing. |
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