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Prev Professional Automotive Repair Technical Discussions for August 1, 2012
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1990 Buick LeSabre Limited 3.8L lifters VIN: 1G4HR54C1L
Looking for some advice on this buick, car came in with a broken camshaft, we removed the old cam, nothing appeared to be the cause other than the cam snapped, the journals looked great so we opted to install a new cam and lifter kit. New parts were installed ...
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1999 Chevrolet Silverado 1500 5.3L No Start VIN: 1GCEK14T7X
i have scanned this truck it has no codes it acts just like a security issue starts and stalls, i checked injector pulse and sure enough it is dropping out with no codes at all i looked at other things found ground had 50 ohms of resistance on connector 1 pin ...
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2003 Chevrolet Malibu 3.1L Theft System Light VIN: 1G1ND52J53
Car came to shop as a no start with the theft system light flashing. Performed a relearn and car started so we recommended a key lock cylinder and a ignition switch. Delco parts were used and recoded to use the same key. After installation the car starts and r...
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2005 Chevrolet Equinox LS 3.4L spark plug VIN: 2CNDL23F75
ok so got this equinox that lady asked if i could put her plugs in because husband told her to get then didnt wanna put in.Plugs are original ac plugs had miss cylinder number 1(backside under alternator).Started with frt plugs came out fine,went to #1 kind of...
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2006 Chevrolet Impala LT 3.9L MIL Lamp on VIN: 2G1WC58146
Owner says oil light will come on sometimes when out side temp is hot going 68-70 mph. hooked up modis pull P0522. Scan tool says 130psi all the time.What should it be reading? I think it should be same as gage reading.I didn't do a manual reading. No engine n... Trouble codes: P0522 (Eng oil pressure sensor signal low)
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2009 Chevrolet Malibu LTZ 3.6L mode door VIN: 1G1ZK577X9
We need to replace mode door number three.its the one that changes the position of the air current. the actuator comes with a plate attached to it that three arms are supposed to fit into. problem is you cant see them to install them when you get the whole ass...
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1999 GMC Sierra 2500 SL 6.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTGK29U8X
Customer complaint low power transmission wont shift.Test drive low power low fuel pressure. Pressure at 45 psi. Replaced fuel pump pressure at 60 psi. Checked alternator voltage 12.5 volts low. Check at ECM the same. Check wiring ok. No shorts or grounds. Cod... Trouble codes: P0563 (PCM overvoltage)
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2002 GMC Yukon SLE 5.3L #7 Clylinder VIN: 1GKEK13T22
Cylinder misfire on #7 and sometimes #2. Read article about same issue #7 cylinder customer took to dealer and was told it was an obvious camshaft issue but they have no proof of how they came to that conclusion. How do they come to that conclusion if you run ...
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2003 Saturn Vue 2.2L No Start VIN: 5GZCZ23D43
Thanks for the help,I had this vehicle in 3 weeks ago for very intermittent no start,no fuel gauge operation and noisy fuel pump.At the time vehicle had code for fuel gauge in PCM.Nothing in BCM.With customers,we decided to replace both fuel pumps & sending un...
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Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Regal Custom 3.1L Cuts out VIN: 2G4WB52M4S
I would like to thank everyone, this was true to all your suspitions. We acsessed the connector for the ign lock cyl and had an open circuit with the key instaled in the lock cylinder. Replaced the lock cylinder went to GM and found the correct new key to get ...
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2004 Buick LeSabre Limited 3.8L Rear Air Shocks VIN: 1G4HR54K74
Thank you to all that replied, we put Napa Monroes on this morning and noise is gone. I would never have thought that AC Delco shocks 3 times and KYB's would make noise and not Napa.
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2010 Buick LaCrosse CXL 3.0L Sun Shade VIN: 1G4GC5EGXA
Hi: Thank you to everyone that responded. I have convinced the customer to take it to the dealer, and to have a good discussion with a service advisor there, about her concerns. I will post again once I know the outcme. Thank you to Dan,John,Steve, Keith,Marti...
9
2002 Chevrolet Corvette 5.7L oil pan/ rear main seal VIN: 1G1YY32GX2
Thanks for all the help, customer has decided to not repair the leak and just sell the vehicle. I went ahead and pulled the intake off, only took a few minutes and no leaks from the top. The leak was from inside the bellhousing so it had to be the rear plate...
14
2005 Chevrolet Trailblazer LS 4.2L Spark knock at idle VIN: 1GNES16S15
Ok everyone who said transmission was correct.we droped trans pan and found large amount of steel and what looked like ground up trans case.Customer said he will trade truck so no actual repair but we feel sure trans replacement would fix it. Thanks to all who...
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2006 Chevrolet Cobalt SS 2.4L No Start VIN: 1G1AM15B16
REPLACED IGN SWITCH AS SOME STATED WAS A COMMON FAILURE ITEM, NO DIFFERENCE IN INTERMIATAMT NO START, CHECK FOR A FUEL INJECTOR LEAK NONE FOUND. RECOMENDED CUSTOMER TO GO TO GM FOR A REFLASH FOR O2 SENSOR TSB. Trouble codes: P0171 (Fuel system lean bank one).
8
2009 Chevrolet Silverado 2500 HD LTZ 6.6L Temp gauge VIN: 1GCHK63659
OMG. Keep it simple silly. When I looked at a wiring diagram from Alldata is showed the inside of the pcm for my temp sensor and it supplies 5 volts. I tested mine and only had 2 volts. Since this was not on the common 5 volt output from the pcm I just started...
3
2009 Saturn Vue Hybrid 2.4L dome lights VIN: 3GSCL93Z89
Ray [...] hit it right on the head It was the drivers visor shorted within the tube Seemed odd there was no fuses blown But Thanks for the help Found the problem while moving the visor around and watching the dome/map lights
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