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Prev Professional Automotive Repair Technical Discussions for July 16, 2015
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1997 Chevrolet C3500 Cheyenne 7.4L Poor Fuel Economy, No power VIN: 1GBKC34J3V
I did fuel inj. pressure drop. What is good & what is NG? They all had 64 psi & dropped pressure to 49 to 54 psi using a Solus Pro. I can't find a spec for pressure drop. It's a SFI '97 C-3500 HD with 7.4L. Thanks, Jim
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2002 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S32
GM Boys, This one is got us a bit out of sorts, customer just purchased (from a relative, with the mil on!!) P0014 which re occurs very quickly after clearing, and a p1345 which has not re-occured since clearing code. we first flushed the engine with the SNA... Trouble codes: P0014 (Cam phase angle variation out of range), P1345 (the deviation between the crankshaft and camshaft position exceeds a calibrated amount DTC P1345 will set.)
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2003 Chevrolet Venture LS 3.4L Unknown VIN: 1GNDX03E23
Driver side vent temp is 10-15 degrees warmer than passenger side vent temp. Evacuated/vacuumed/recharged with 2.18 lbs 134a. Same symptom. Considering this van has been to other shops for this I decided to flush the evaporator fearing too much oil could be th...
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2004 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEC14T74
Customer states when he is towing trailer under heavy load up a hill the ck engine lite will set intermittently with no apparent drivability symptoms. Once shut off lite will extinguish and will not reset when done towing We cant duplicate symptoms under the h... Trouble codes: P0101 (maf circuit range performance)
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2007 Chevrolet Suburban 1500 Z71 5.3L coolant reservoir VIN: 3GNFK163X7
Vehicle towed in. Code po308 missfire, #8 spark plug has traces of coolant and exhaust presents burnt coolant, typical head gasket failure it would seem. Coolant reservoir contains about a pint of clean engine oil floating on top of coolant but not the usual f...
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2011 Chevrolet Silverado 2500 HD LTZ 6.6L MIL Lamp on VIN: 1GC1CYC80B
hello to begin I do not generally work on diesels so not familiar . def was low ,filled tank . can command regen but aborts because P2463 returns,engine goes to reduced power. how can I complete regen if code will not allow.also I command DEF fluid pump on, no... Trouble codes: P2463 (DPF regeneration)
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2006 Pontiac Torrent 3.4L steering shaft VIN: 2CKD173F46
Hi, Guys,, never had this before, sometimes when applying brakes usually hard apply at higher speeds get rattle sounds like in frnt of firewall, will continue to rattle for short time after brake pedal released, if wedge foot against steerin shaft can stop noi...
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Chevrolet K1500 Suburban 5.7L theft system VIN: 3GNFK16R1X
Thanks for all the replies, The truck is currently still working but I will go with Carlos suggestion of a module bypass from newrockies.com, THANKS. This is my personal vehicle. Just for information for anyone reading this techhelp in the future, this partic...
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2001 Chevrolet Impala 3.4L No Start VIN: 2G1WF52E91
first when doing the old shortcut to check for a fuel problem .use a known good spray . i didn't on this vehicle . ended up doing a lot of test . that most likely were not needed . i use a known spray today . vehicle started . so i will be replacing the fuel p...
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2005 Chevrolet Equinox LT 3.4L No Start VIN: 2CNDL63F65
Hello we found two different problems one the updated egr valve we put on due to the fact the exhaust hose rusted into . When you look at the female side of the egr electrical connector the letters go from left to right, the male connector on the harness...
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2007 Chevrolet Silverado 1500 LTZ 5.3L Charging VIN: 1GCEK19J17
I think we have this one fixed, talked to customer this morning and said everything was good. when truck first came in we had checked the battery, doing a load test the battery held 11.3 volts for 15 seconds doing this back to back tries. we had checked all gr...
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