noob chevy owner looking for help
January 29th, 2012 | 11:34 PM
#1
Thread Starter
CF Beginner
Joined: Jan 2012
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noob chevy owner looking for help
2003 suburban 1500 flex 5.3 running 89 gas in colorado. Replaced all 4 o2, cleaned mass air,cleaned throttle body, iridium plugs, new wires-still idles rough cold until 15+ min warm up to normal temp.any suggestions greatly appreciated.
January 30th, 2012 | 1:01 AM
#2
Senior Site Administrator
Joined: Apr 2010
Posts: 1,120
Likes: 1
From: Vernon, NJ
Faulty EGR is possible here.
Part 1 -How to Test the GM EGR Valve (P0401, P0403, P0404, P0405, P1404, P1406).
Part 1 -How to Test the GM EGR Valve (P0401, P0403, P0404, P0405, P1404, P1406).
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