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Prev Professional Automotive Repair Technical Discussions for June 14, 2022
International Automotive Technicians' Network (iATN) - Members Only
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2005 GMC C4500 Topkick C4C044 8.1L No power
THIS HEADACHE IS FIXED. ON THE 8 TEST DRIVE. I TAP ON THE CATS AND IT FINALLY RATTLE. BEFORE , IT DID NOT RATTLE. INSTALLED NEW ALL CATS . DROVE 770 MILES AND NO MORE LOSS OF POWER. THANKS FOR ALL THE FEEDBACK
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2009 GMC Sierra 2500 HD SLT 6.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GTHK63K69
Well guys I'm going to have to let this one go to someone else to figure out we have way to many other vehicles here to spend anymore time on this one. Thanks for all the replies about checking engine vacuum, fuel quality and pressure and quantity, using a fac... Trouble codes: P0300 (Random missfire), P0171 (System too lean bank 1), P0174 (System too lean bank 2).
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