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Prev Professional Automotive Repair Technical Discussions for April 1, 2013
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Open Help Requests for GM
Help Request Answers
2010 Buick LaCrosse CXL 3.0L MIL Lamp on VIN: 1G4GL5EG8A
Vehicle came in for Cat efficiency codes, Scan tested and road tested . when throttle is snapped while graphing o2 sensors the spike in the pattern seems to occur at the same time on pre and after cat sensors. At a recent snap on course it was stated there sho... Trouble codes: P0300, P0420, P0430
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1999 Chevrolet Astro LT 4.3L timing componants
While having the timing chain off,on the gear to gear set up I can turn the cam gear from side to side three or four grooves without no problem,are they supposed to move that freely or not.
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2001 Chevrolet Silverado 1500 4.8L oil filter VIN: 1GCEK14V51
customer called in and indicated oil leak at filter, customer said filter o-ring blew out. customer put another filter on and that one blew out also. towed truck in. remove filter and install one of ours, verify engine block is clean and no other gasket stuck ...
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2003 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK29143
this is my first post so please bear with me. customer just bought truck from a private party and started to have long crank issues, i replaced the fuel filter and noticed prime pump did not work well so i replaced all the seals and now primes system well. sti...
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2005 Chevrolet Avalanche 1500 Z71 5.3L brake wear VIN: 3GNEK13T05
replaaced brakes at 130000 km came back after about 20000 km and brakes on right rear were wore out metal on metal, replaced both calipers and brakes and came back now at approx another 20000 km with smae issue inside pads are wearing out very quickly. i know ...
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2005 Chevrolet Trailblazer LS 4.2L Mechanical VIN: 1GNES16S45
Customer brought this Trailblazer in for a noise. Put on the rack and ticking noise sounded like coming from the transmission pump area. Dropped pan and there was a lot of metal shavings in the pan. Pulled transmission tore down and found wear on the converter...
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2007 Chevrolet Trailblazer LS 4.2L Sunroof
When operating the sunroof it works ok. It closes fine but at the end of the cycle it drops down at the back 1/2 inch. I do under stand that it is cable operated. Could this be a stretched cable, Or something broken. I don't want to pull the headliner down and...
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2003 Pontiac Vibe 1.8L C0210 Right rear speed sensor VIN: 5Y2SM62843
I got this car from another shop. They installed a GM new wheel speed sensor on the right rear to repair a code C0210. When driving this car the ABS applies with every stop until the ABS lamp comes on and the code C0210 sets. I have printed the trouble tree fo...
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Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Riviera 3.8L Poor Idle Quality, Misfire VIN: 1G4GD22K3S
After making the conclusion that this car defies all logic i decided to remove the upper intake to check for any signs of damage. Once removed i did find that the egr tube didnt melt into the coolant passage like most but did distort the intake enough to caus... Trouble codes: P0740, P0171, P0131.
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2001 Buick LeSabre Limited 3.8L Engine VIN: 1G4HR54K21
Ok. First off the vehicle came in and customer was not able to leave it for any length of time, had to go to work, stated clearly in the request. We did a basic scan and found not codes and all monitors were enabled and ready, which we thought was strange due ...
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2000 Chevrolet Monte Carlo LS 3.4L engine VIN: 2G1WW12E7Y
Thank you all for your help. I found the problem, it is the fuel injector that is bad. I am waiting on the customer to give the go ahead to fix it. I want to say thank you all again for your help.
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1998 GMC K3500 Sierra SL 7.4L Poor Idle Quality, Cuts out, Misfire VIN: 1GDHK33J1W
THANKS FOR AL [...] THE REPLIES, WE DID NOT FIX THIS VEHICLE , THE CUSTOMER (CAR LOT) DECICED TO TAKE IT BACK TO THE AUCTION,RATHER THAN SPEND MORE MONEY. THANKS AGAIN DANNY Trouble codes: P0302, P0304, P0141.
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2007 GMC Yukon XL 1500 SLE 5.3L rear lift gate VIN: 1GKFK16377
Thanks to all who replied. The problem was the switch in the handle on the liftgate. I thought the liftgate would open when the button on the remote was pressed but it only unlocks.
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1996 Oldsmobile Cutlass Ciera 3.1L right rear brake VIN: 1G3AJ85M6T
Thanks for the help everyone. Noticed some ridges on the backing plate. Welded over and ground down, replaced with oem shoes. Looked good. Hope it holds up this time.
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2001 Oldsmobile Intrigue GL 3.5L engine VIN: 1G3WS52H11
Thanks for all the great info! We left pressure pump on cooling system on over the weekend, and the car did not miss fire when started, it still had 5 psi remaining on system too. Went old school, installed clear hose on heater return to thermostat. Gas bubb...
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2010 Pontiac G6 2.4L Stall VIN: 1G2ZA5EB2A
ran injector wave form test and ck for spark all is well whent to put back together car started and ran fine put over seventy five miles on car ran like a top let customer take back called today and said everything was fine its never fun when a car stops perfo... Trouble codes: P0011 (Intake cam position system performance).
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