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Old 08-29-2013, 09:58 PM
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BG1772 BG1772 is offline
TT Enthusiast
Join Date: May 2005
Boat: X-Star, 2001 5.7L LTR
Location: Columbus, Ohio
Posts: 246
I've had issues with both the tps and iac, but they are easy to replace. Tps caused a strange idle. Iac caused hard starts. Both issues were easily remedied with a trip to Napa and using a 99 Yukon as the automotive equivalent.

My worst problem wasn't even engine related. It was caused by the exhaust silencer choking the engine st about 3200rpm.
2001 X-Star 5.7l LTR
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