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Prev Professional Automotive Repair Technical Discussions for December 21, 2012
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Open Help Requests for GM
Help Request Answers
2002 Cadillac DeVille 4.6L Accessories VIN: 1G6KD54Y32
I just purchased a 2002 Deville. The right rear door is dead. The window wont go up or down, the heated seat switch wont light up or heat the seat, and the power lock actuator wont lock or unlock the door. The window wont go up or down on the left rear seat, ...
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2004 Cadillac SRX 4.6L idler
Hi. Just wondering if anyone else has had this problem and came up with a fix, Short of replacing the engine or block. The power steering pump siezed and broke the idler off, which is mounted directly to the block. It broke the idler mounting boss off the blo...
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2007 Cadillac Escalade ESV 6.2L Heated and Cooled Seat VIN: 1GYFK66807
Vehicle came in with drivers seat heat and cooling inoperative. Passenger seat operates just fine. Found connector C1 on CCSM with the usual melted connector and terminals. Replaced connector and terminals, as well as module that was burnt and melted, did not ...
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1986 Chevrolet Monte Carlo 5.0L Excessive Emissions VIN: 1G1GZ37H7G
Car came failing nox,we do not have a dynamometer, arizona state does im240 test, at idle nox is perfect almost 0 but under load it gets over the limit,vehicle has a new catalystic,converter i replace the egr how can i lower nox under load, customer did a full...
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1998 Chevrolet Tahoe 5.7L Monitor problem
Does anyone have past experience with having to reprogram PCM to update system for monitors to run) Will not run CAT, EGR or EVAP. Replaced thermostat and ECT. Cleared all data and test drive. Still will not run monitors. Ideas? Thanks for your help.
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2007 Chevrolet Aveo LS 1.6L Misfire, MIL Lamp on VIN: KL1TD56647
We have misfire codes set when driving under load at freeway speeds or heavy acceleration or possible deceleration after the heavy accel. When misfire codes set the engine runs fine and still has steady power. The scanner shows same amount of misfires on both ... Trouble codes: P0300 (Random Misfire), P0301, P0304
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2008 Chevrolet Suburban 1500 LTZ 5.3L Misfire, MIL Lamp on VIN: 3GNFK16378
Customer was driveing , when ses lite, trac control lite, abs lite came on, engine started running bad.scanned ecm , found po306 , only . We checked #6 plug was fuel fouled, changed plug, no change. Did running and static compression, 50# & 150# respectfully. ... Trouble codes: P0306
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2002 GMC Sierra 1500 SL 5.3L battery VIN: 2GTEK19T52
I have a major draw on the battery. If vehicle sits for a couple of days without being started the battery goes dead. Memory had 2 codes B1477 & B2647.I've removed every fuse,circuit breaker,Module connectors,door switches,seat harness,bulkhead connectors,igni...
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2001 Pontiac Bonneville SE 3.8L No Start, No crank VIN: 1G2HZ54131
Did lower intake manifold, went well till I tried to start it. No crank! Has code P1819 transmission range incorrect. Scan data showed no change on the a,b,c,p ,PCM inputs when moving shifter. Any ideas? Thank you. Trouble codes: P1819 (No start wrong range)
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Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K9V
I did find that the fuel tank pressure sensor volts did not change When I pressurized, or created a vacuum to the tank., this tells me That the FTP sensor is no good., but unfortunately the customer Had no money to go any further for.., thanks to all who repli... Trouble codes: P0440.
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2001 Cadillac DeVille 4.6L no spark VIN: 1G6KD54Y71
What a headache .I did not say in my first post this car had engine replaced in june at another shop. Had tapping noise from first day. Customer not happy with other shop brought car to me.We repleced tapping engine. Thats when my trouble began. No start, trou...
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2007 Cadillac DTS 4.6L Driver Info Center VIN: 1G6KD57YX7
Thanks for the input, there was no visible damage found on the sensors or what could be seen of the wiring harness and connectors. We recommended taking the vehicle to the dealership since we could not adequately establish communication with the park assist/ob...
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1998 Chevrolet Monte Carlo LS 3.1L front strut mount bearing VIN: 2G1WW12M5W
thanks to all that responded.this is not the quick strut style. we have ordered the lower seats with bearings. the customer will schedule the repairs after the holidays.i will respond back after the repair is completed. thanks.kevin
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2003 Chevrolet Silverado 3500 8.1L Sticking throttle VIN: 1GCJK33GX3
Ok so We focused on the cruise circuit and removed covers to access cruise sw.connector. Disconnected it and road tested and the problem was gone .Ok we are getting somewhere .. reconnected it and problem still gone ...everything works fine ... not sure why bu...
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2010 GMC Sierra 1500 WT 5.3L Trailer Module VIN: 1GTSCTE04A
Found a broken wire about 6 inches away from brake light switch where the aftermarket remote start wire was tied in.
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2003 Hummer H2 6.0L power steering VIN: 5GRGN23U73
Thanks for all the help. The truck is fixed. It had two different problems, The one I fixed was the power steering pump. after replacing it two times with delco reman pumps( sometimes I think I am the only one in the shop that believes in new parts ) I convinc...
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1999 Pontiac Sunfire SE 2.2L Misfire VIN: 1G2JB1244X
want to thank everyone! esp. craig and tim for your time and help. ok here is the skinny, the timing chain is worn and loose the tensioner is not able to keep the slack out and the #1 cylinder began to missfire at high rpms which point the ecm detects the mis...
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