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Prev Professional Automotive Repair Technical Discussions for July 23, 2009
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Open Help Requests for GM
Help Request Answers
2003 Buick Rendezvous CX 3.4L ABS RR wheel speed sensor VIN: 3G5DB03E33
Greetings all, Need a little help if possible on this one. Got an AWD 03 Rendezvous here that has a reoccurring ABS code c0050 RR ABS sensor. The bearing was replace before and the owner opted for the higher end lifetime one. I inspected the abs scan data whil...
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1992 Cadillac Fleetwood 4.9L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1G6CB13B8N
Hello guys, having a bit of trouble with this one. 1st cold start starts and runs poorly, rich, missing surging black smoke and sometimes dies. Some times it will after running this way in the shop for 5 minutes or so begin to idle fine again with a little rou...
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1985 Chevrolet S10 2.8L coolant/oil VIN: 1GC8S1489F
Hello, We have oil in the anti-freeze. No other problems at all. My tech thinks that if it was head gasket or intake there would be anti-freeze in the oil. He thinks someone added something to cooling system. Customer says no. Any ideas on what we are dealing ...
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1999 Chevrolet S10 LS 4.3L Unknown VIN: 1GCDT19W7X
customer states truck will die randomly. then will not crank/start. has had truck towed in twice now for same problem. first time early june could not duplicate problem. drove numerous times. checked for codes, tsb's etc. nothing found. later in june towed in ...
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2000 Chevrolet Suburban 1500 LT 5.3L MIL Lamp on VIN: 3GNFK16T2Y
we have this truck with bank 2 sensor 2 o2s reading 60 to 80 millivolts have replaced convertor 2 times have replaced o2s 3 times with oe units resealed intake gasket ,valley pan replaced pvc valve still have code po137 no other symptoms bank 1 all normal Trouble codes: P0137
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2002 Chevrolet Corvette 5.7L seering assist VIN: 1G1YY22G72
i replaced the balancer on this corvette and had to remove the steerin gear to do so. when i got it back together i had no assist at idle. i flushed the system to see if there was contamination and it got better in the bay. after a test drive however the same ...
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2003 Chevrolet Impala 3.4L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2G1WF52EX3
I am trying to help a friend and diagnose his car over the phone cause i wont get a chance to look at it for about a week. He called me about a week ago with misfire, he borrowed a scanner, p0300, he replaced plugs and found one that the ground strap was actua... Trouble codes: P0300
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2006 Chevrolet Tahoe Z71 5.3L MIL Lamp on VIN: 1GNEC13Z16
we have scanned solenoid with snap on scanner and run thru all diag flow charts for these codes and come up with replace pcm every time.solenoid does not operate when commanded to.is it true that the pcm will have to be replaced or can it be reprogrammed.thank... Trouble codes: 449 (evap control solenoid), 443 (evap control)
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1995 GMC K1500 Suburban SLE 5.7L Distributor VIN: 1GKFK16K0S
Hi, Thanks to all for any help. This vehicle came in running real rough,stalling,etc.Customer had diagnosed elsewhere for bad intake and wanted us to do the job. My so called mech verified intake leak, pulled dist without marking anything and after days, canno...
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2003 GMC Yukon Denali XL 6.0L Electronic VIN: 1GKFK66U13
has code B0414 temp control feedback range problem. blows warm air. if you press the a/c button then the compressor goes off and blows warmer air, rear ac system works fine. I have a tech 2 but don't understand the data. Which one is blend door motor and what ...
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2004 GMC Sierra 2500 HD SLE 6.6L power door locks and windows VIN: 1GTHK29274
hi people this is my own truck 04 duramax 2500hd power door locks and window dont work i check IATN and people said to replace door module and reprogram BCM so i sent it to the dealer i cant reprogram car here yet the dealer said they cant reprogram it because...
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2006 Hummer H3 3.5L battery VIN: 5GTDN13626
concern battery dead found parasitic draw of 1.8a . continued to diag by removing fuses to narrow down to one circuit. removed fuse #13 rdo radio,heating, ventilation. amps droped by .8a the total draw was not eliminated so continued on fuse #14 droped .o6a bo...
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1991 Pontiac Grand Prix SE 3.4L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G2WJ14X3M
I am begging for everyone's help on this one! I have has this problem child for a while now and it is at the point where I need to solve this car soon before I lose what sanity I have left. This car has had a engine rebuild done by myself about a year ago. I h...
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2002 Pontiac Grand Am SE 2.2L No Start VIN: 1G2NF12F52
hey guys, have a problem with a 2002 pontiac grand am w/2.2l ecotec engine. owner towed vehicle to shop for a no start condition. it seems he purchased the vehicle with a blown engine. he then purchased a used engine with 50000 miles from an individual. he in...
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2002 Saturn L200 2.2L alternator VIN: 1G8JU54F22
this car came in on the hook dead battery. charged battery, no alternator output. replaced alternator. car is now charging 14.1 but the battery light is on, and code p0662 is set. f terminal on scan tool is reading 0%. hooked a test light between the f teminal...
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Fixes & Summaries for GM
Fix/Summary Answers
2002 Buick Regal LS 3.8L shifting VIN: 2G4WB55K72
WELL ITS FIXED,REMOVED THE SIDE COVER AND REPLACED THE INTURNAL HARNESS AND PRESSURE MANIFOLD ASSEMBLY AGAIN AS THE P1887 KEPT COMING BACK. THANKS FOR ALL THE GREAT INFO,MATT
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1993 Chevrolet K2500 Cheyenne 5.7L Hesitation, Surge, Cuts out VIN: 2GCFK29K9P
Thankyou for the great responses, this is the best tool in the shop. Customer had been think of geting a new truck and found a good deal and took it. Many were steering me towrd a fuel mixer or valume problem that probly was is. I am sory for the way the me...
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1998 Chevrolet Corvette 5.7L driver info center VIN: 1G1YY32G6W
thank you david from arizona the cluster was at fault but i sent it out to be repaired at specialty shop,a new cluster was 700 and the rebuild was only 329 to us, all is well. thanks again
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2001 Chevrolet Silverado 2500 6.0L No Start VIN: 1GCEK19TO1
the truck is fixed thanks the for the help guys its great to have support . i removed the starter the ckp was hooked up treid to pull the tape off around the pig tail so i could test the wireing and sure enough the wire on the end pulled out the others where ...
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2003 Chevrolet Suburban 1500 LT 5.3L radio VIN: 1GNFK16Z73
Sorry folks, I havn't been able to get the owner to bring this suburban back in. Seems he is content listening to a battery powered radio on the front seat. What I learned was that if the vehicle has a BOSE system and a console, the amplifier is at the rear of...
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2004 Chevrolet Tahoe LS 5.3L Rear heater /AC VIN: 1GNEK13Z84
Thanks for the two replies - one stating possable wiring problems and one tech saying the need for the Tech II scan tool for relearn. This vehicle has been fixed -- spent a lot of time trail and error on this one ..."trying this and trying that" but here is w...
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2004 Chevrolet Cavalier LS Sport 2.2L Slave Cylinder VIN: 3G1JH12F14
Replace slave cyl. assembly again, couldn't see any real problems causing the slave cyl to fail. This unit is all one piece design, with frt seal and throw out bearing attached. Used OE unit and not a cheap fix. Used Clutch Dr. Last clutch install and tha...
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2005 GMC Canyon Z71 SL 3.5L abs VIN: 1JGHN34534
replaced ecbm and it was fixed. gm has had alot of problems with this issue. its crazy to have to change both speed sensors and ebcm when you replace pads and rotors.thats gets expensive. i would tell every one not to buy a cayon or colorado unless you want t...
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1988 Pontiac Grand Am LE 2.5L No Start VIN: 1G2NV14U5J
thanks for all the info.the fix ended up being the crank sensor.i had good fire at cranking and good cranking rpms.replaced sensor,problem gone.thanks again!
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1994 Pontiac Bonneville SE 3.8L Hesitation VIN: 1G2HX52K9S
Thanks to those who responded. Had the tech recheck inputs and outputs at the computer. All inputs were good, but injector driver circuits were erratic when the problem was occurring. Replaced the ECM, and problem is gone. Trouble codes: P0341.
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1996 Saturn SL2 1.9L readiness monitors VIN: 1G8ZK5277T
WELL,AFTER A BUNCH OF REPLIES THAT ALL PRETTY MUCH INDICATED THAT THE COOLANT TEMP SENSOR/HARNESS CONNECTOR WERE THE PROBLEM,I TESTED EVERYTHING OUT WITH NO PROBLEM FOUND.SO,IN LIGHT OF THE FACT THAT RHODE ISLAND ALLOWS 2 MONITORS TO BE "NOT READY" AND STILL G...
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