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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 6, 2018
International Automotive Technicians' Network (iATN) - Members Only
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2007 Chevrolet Avalanche LT 5.3L engine VIN: 3GNEK12387
Still making clattering noise at idle. Noise isn't any better than before changing lifters. It's the LC9 engine, so anything is possible. Any ideas? Noise almost sounds rotational, but disappears upon throttle up.
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2004 GMC Sierra 2500 SLE 6.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 1GTHK24U24
When you first start after sitting all night or about six hours, runs good for about 15 sec. then starts rough idle missing and won't take fuel pops back through air intake, white smoke looks like fuel smoke not anti- freeze, not running hot or adding flui... Trouble codes: P0300
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Fixes & Summaries for GM
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