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Prev Professional Automotive Repair Technical Discussions for June 5, 2012
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Open Help Requests for GM
Help Request Answers
2002 Buick Regal LS 3.8L Key VIN: 2G4WB55K42
Key will not turn back far enough to remove. Only Happens intermitanly
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1997 Chevrolet S10 LS 4.3L fuel gauge VIN: 1GCCS19X4V
Gauge always reads empty. gauge will perform sweep test ok and will read full with buffer/slosh module disconnected. sender tests ok with ohm readings @ 38 currently. wiring integrity thru harness intact. test says unplug sender/fuel pump and if reading full r...
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1998 Chevrolet Express 1500 5.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GBFG15M7W
Vehicle came in running terrible. Scan of the system turned up only p0300 random misfire. Using the scan tool only seem to have a proble on cylinders 2 and sometimes on number 8. All other cylinders are not showing a misfire. New plugs, distributor, ignition w... Trouble codes: P0300 (Random Misfire)
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1999 Chevrolet Express 1500 LS 5.0L MIL Lamp on VIN: 1GBFG15M6X
Hi could really use some assistance from you gm techs, This car came in with the two codes p340 p1336. I scoped the cam sensor and found that it had no signal i cheked for voltage coming in (12v). Decided the sensor was bad and replaced the whole distributor. ... Trouble codes: P0340, P1336
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2004 Chevrolet Suburban 1500 LS 5.3L Cuts out, Stall, MIL Lamp on VIN: 3GNFK16Z04
truck came in fo intermittent stumble and stall code po336 rec cam and crank sensor cust agreed put sensors in had to replace cam because of bad sensor crank sensors still intermittently throwing the po336 checked voltage signal and low reference all seem ok t... Trouble codes: P0336
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2005 Chevrolet Colorado Z85 2.8L starter VIN: 1GCCS14825
Thank for any help. Truck came into shop running after rolling off to start. Cut off will not crank. No power to starter sol. Check fuses and relays. Start relay #62 not clicking. Power on only on one terminal B+. Power on clutch swtich. Bypass swtich still no...
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2006 Chevrolet Silverado 3500 WT 6.6L Electronic VIN: 1GCHK33D66
Truck will peg trans temp gauge and set warning on info center but temp on line and cooler read much lower. Has anyone put a trans temp sensor in or how do you test. What wires mitchell sucks on this one
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2008 Chevrolet Silverado 3500 HD LT 6.6L Transmission VIN: 1GBJK39678
This truck has an intermittent code P0732 2nd gear ratio incorrect. It only sets about once a week and trans goes into limp mode and stays in third. When code is cleared all is OK for about a week. We have already replaced trans and still have same problem. Ha...
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2002 GMC Yukon XL 2500 SLE 6.0L Surge, Cuts out VIN: 3GKGK26U72
Customer complaint is intermittent losing power on Interstate only. This beast has to be run at 70-75 mph for a few miles before it acts up. At 75 the fuel pressure is at 47 psi, and about 3 times in 10 miles will drop to 35 psi then back up to 47 psi. You can...
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2004 Saturn Vue 3.5L compressor VIN: 5GZCZ53444
this saturn came in not cooling good The low side is 70 at idle and the high is 150 if I raise the speed up to 2000 the low is around 55 and the high is around 175 the duct temp feels slightly cool with high rpm with the blower on low.The raditor fans are runn...
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac DeVille 4.6L Excessive Emissions, VIN: 1G6KD54Y0X
Another lesson in "check the basics first". Car had (somehow) an intermittent vacuum leak on the intake gasket. It was still failing when it went to the referee. The help replies all help a lot. Unfortunately my new tech inherited the car from the previous tec...
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2001 Chevrolet Monte Carlo LS 3.4L Starting VIN: 2G1WW15E71
after talking to the customer , she said that concern was always there. vehicle originally came in as a no start. found theft light on with a B2960. after replacing the cyl and reprogrammed, i noticed the delayed crank. grounds were good. i decided to replace ...
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2007 Chevrolet Impala LTZ 3.9L compressor VIN: 2G1WU58R47
Well this one is done. I installed a new txv it still acted up. I was finally able to get it to make the noise running it on the hoist after about 100 tries. The belt was flopping around like a loose guitar string. I put a new tensioner and belt on and the pro...
5
2003 GMC Sierra 2500 HD SLE 6.6L tempurature gauge says 240 degrees VIN: 1GTHK23193
Well after MUCH frustration my truck should be fixed tomorrow. The cooling issue anyways. The smoke is going to be another issue for another day. I finally ran out of ideas and pulled the water pump out. Tim from CA was right on. The impeller was loose on...
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