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Old 02-21-2008, 12:09 PM
DEEPEE DEEPEE is offline
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5.7 surge

Did anyone ever come up with the remedy for the surge problem? This is a 98 5.7. After engine gets up to temperature and you stop at a stop light, foot on the brake and it's goes through the surge routine. RPM's will flucuate between 500 - 700 rpm. This is really aggravating. Other than that, it runs great. Any help or remedy will be appreciated.
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Old 02-21-2008, 07:25 PM
2000CAYukon 2000CAYukon is offline
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Re: 5.7 surge

Could be many things. Probably best to get it scanned so you can see what is going on.

- leaking fuel pressure regulator
- bad ECT sensor
- vacuum leak
- EGR valve
- worn dist drive gear
- dirty MAF
- bad 02 sensor

//2000CAYukon
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