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Prev Professional Automotive Repair Technical Discussions for March 16, 2009
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Open Help Requests for GM
Help Request Answers
1991 Buick Regal Custom 3.1L headlights VIN: 2G4WB54T2M
Well this is my Mom's car so it has got to be fixed. Whenever you have the headlights on and you put it in gear (any where other than park) the headlights shut off. This car does not have DRL's. I checked the park brake switch and that is not it. I have search...
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2000 Buick Park Avenue 3.8L door locks,horn VIN: 1GC4W54K0Y
i need help again,this one has got me,its my mothers car so i got to fix this one.the door locks ,lock and unlock going down the road and or stopped.turn car off locks un lock, turn key on doors lock ,open door horn goes off cant cut horn off ,it goes off by i...
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2001 Buick Park Avenue Ultra 3.8L daytime running lights and tail lights VIN: 1G4CU54121
I have a 2001 park ave that the daytime running lights come on with key off intermitently lights come on for 10 seconds then off I have the headlight switch out, the bcm out, the rap out and the lights still come on have tried 3 different lamp control modules ...
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1999 Cadillac Seville STS 4.6L electrical system VIN: 1G6KY5495X
hi everyone. this car had water damage from clogged sunroof drain tube. signs of moisture damage.(we corrected) "every" ground connection replaced.(bumper to bumper) air bag light on due to water damage to module under seat. abs traction lights on. charge ligh...
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2004 Cadillac Escalade 6.0L won't take fuel VIN: 1GYEK63N54
i have a caddy coming in tuesday 03/17/09 she states it is extemetly slow to re-fill w/ fuel. i'm thinking evap problem. but open to all suggestions. thanks in advance-bob
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1995 Chevrolet C1500 5.0L air bag VIN: 1GCEC14HX5
ive checked everything on this vehicle and i think i'm missing something. is this the same as resistance high like the air bag being open, or problem with the derm. vehicle never been on an accident. mitchell is very vague on diagnosing code 23. any help would...
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2000 Chevrolet S10 4.3L readiness VIN: 1GCDT19W7Y
This is a fleet vehicle, came in for inspection , and we have Not Ready Evap, EGR, and Catalytic, we didn't have the battery off prior nor did anyone reset the codes etc,, found the Thermostat stuck open on 1st drive cycle ride, changed the thermostat now we g...
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2002 Chevrolet Corvette Z06 5.7L Column Lock VIN: 1G1YY12S72
I work primarily with older classic cars for a private collector. He bought this ZO6 and has been driving it for a while. 2 weeks ago a message came up on the dash display that says "Service Column Lock". I contacted my local Chevy dealer and they couldn't/wou...
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2002 Chevrolet Trailblazer LS 4.2L no start VIN: 1GNDT13S22
Three months ago the customer jump started the vehicle backwards. Customer replaced the 125 amp fuse. We first saw the vehicle two months ago for an engine knock. We installed a used engine and the vehicle left out. Two weeks after, we towed the vehicle in for...
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2003 Chevrolet Silverado 3500 6.6L MIL Lamp on, VIN: 1GCJK33143
At Idle only intermitant it puffs grayish white smoke, temp is good, coolant hasn't dropped. has good power good gas milage, and not using oil. Had a code po234 boost sensor for turbo. Air filter at one time was sandy on outside only. Any Help would be appreic... Trouble codes: P0234
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2003 Chevrolet Express 2500 6.0L Poor Idle Quality VIN: 1GCGG29U93
I am third in line looking at this van. The complaint is an intermitant high idle (varies from 1500-3400 RPM). The van has gone weeks at a time with no issues and will also act up for ten key cycles straight. I have inspected the wiring trouble spots - left fr... Trouble codes: P507
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2004 Chevrolet Malibu Maxx LS 3.5L No Start VIN: 1G1ZT64844
Hello: this problem is very intermitant, and only occurs when trying to start the vehicle. At one time we had no fuel pressure when cycling the key or cranking, when adding starting fluid the car runs until the starting fluid is burned and then dies. While tes... Trouble codes: U2108, U2109, U2111, U2105, B1380 (Ign. sw. accesary power grounded), P1626 (Pass key III)
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2005 Chevrolet C5500 Kodiak C5C042 6.6L Hesitation, MIL Lamp on VIN: 1GBE5C1225
I have a 2005 tow truck (topkick). having problems with #7 injector constantly getting clogged. I have replaced once, and cleaned once a month. It's always #7. In the nipple part, where it sits in the motor, it fills up with black, carbon gunk, causing it not ...
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2005 Chevrolet Cobalt 2.2L Steering VIN: 1G1AK52F55
HELLO, We have a 05 cobalt with intermitant no power steering. has happened to customer 3 times in last 2 days. We have not been able to duplicate on our test drive yet. only codes in car are a u0101 communication problem with trans module. we can not pull ste...
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2007 Chevrolet Silverado 1500 Classic LT 5.3L MIL Lamp on VIN: 1GCEK19Z47
Truck came in with check engine light on. Code po449. With tech 2 toggling vent valve - It would not click or work. Ohm'd out vent valve & was over 1 million ohms. Changed part & now clicks/works GREAT. Cust. picked up truck & code resets(449)- Checked all wir... Trouble codes: P0449
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1999 GMC Sierra 1500 SLT 5.3L Misfire VIN: 2GTEC19T7X
thanks in advance.i was just wondering if that code could have anything to do with this random miss.i have checked fuel pressure okay,also cleaned out maf.misfire was on cylinder's 134578 at first after i cleaned maf no misfies on any cylinder,but to me it;s n... Trouble codes: P0300 (random misfire), P0463 (fuel level sencor high or open)
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2003 GMC Envoy XL SLE 4.2L No Start VIN: 1GKET16S73
Was towed in no start, all normal diag performed first fuel pressure and compression in spec, injector pulse and spark on all cyl. Replaced spark plugs due to extreme carbon fouling. Codes P0622, P1523, and U1000 stored in memory but not current codes. Clear c... Trouble codes: P1120, P1220
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2003 Oldsmobile Silhouette Premiere 3.4L Hesitation, Surge VIN: 1GHDX03E43
have a 2003 oldsmobile sillouette that under heavy acceleration bucks, hesitates, feels like its misfiring almost like your hitting the rev limiter the 24x signal drops out to 0 when all this happens if you accelerate normalally or lightly you cans feel it at ...
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2003 Pontiac Vibe 1.8L Mechanical VIN: 4145467859
Hello Transmission gods, I have an 03 pontiac vibe that has generated a very rough bearing noise when the vehicle is any gear, when clutch is depressed the noise goes away, but under excelleration, you can hear the rough, ruh, ruh, sound. Do you think, input s...
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2003 Saturn L200 2.2L cylinder head VIN: 1G8JU54F13
This Saturn has a fast leak coming from the back of the cylinder head. There is a crack starting from the valve cover and travels down to the flat spot where the exaust manifold bolts on. Oil is leaking from the bottom of the crack fast and slower throught the...
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2006 Saturn Ion-2 2.2L ignition VIN: 1G8AJ55F36
HI guys-this one I am having problems finding info on the can networks-i dont think it is a problem with the key or the ignition switch-stores a code u1000-class 2 data fault-in the engine module and other modules that i can access with the snap-on red brick.i...
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac Seville SLS 4.6L torque convertor clutch VIN: 1G6KS54Y2X
Thanks to all that commented. I ended up doing the trans scavenge filters and flushed the trans. fluid and the vehicle was gone for 3 days and then the check engine light came back on with the same code. I ended up replacing the torque convertor with a remaned...
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2005 Cadillac STS 4.6L MIL Lamp on VIN: 1G6DC67A15
HAD TO BORROW A TECH 2 SCANNER TO RELEARN THROTTLE POSITION THANKS FOR HELP FROM ALL WHO RESPONDED Trouble codes: P1101 (actual measured airflow from mafmapegrtp is not within range), P0068 (map/maf throttle position correlation).
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2005 Checker Avalanche 5.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GNEK12ZX5
Thanks everyone for the help but the customer has not brought the vehicle back fo further diagnosis.The vehicle runs fine until you accelerate hard and oil gets on the map sensor.Once it does get oily all I so is spray off the oil and it runs fine under normal... Trouble codes: P0151, P0174, P0300.
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1995 Chevrolet C2500 Cheyenne 5.7L pedal on floor with good booster VIN: 1GCGC29K6S
thanks to all that helped me on the brake problem i had the fix was to replace the master cylinder with one from gm i guess the three i put on from the parts house were not wright
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1998 Chevrolet K1500 Cheyenne 5.7L head/ tail lights VIN: 2GCEK19R3W
Grounds, it's allways about the grounds. After we did some deeper digging we found that the bax had been removed at some point in time and they never reinstalled the ground. Thank you all for your help, and suggestions.
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1999 Chevrolet Astro 4.3L ball joints VIN: 1GBEL19W8X
I already know about the air chissel and the drilling but i was looking if there is an aftermarket tool that lets you push through the rivets after the head is cut off...
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2001 Chevrolet Tracker 2.0L MIL Lamp on VIN: 2CNBJ13C41
thanks to all who responded. I soldered sensor wire to harness, no fix. Then replaced connector at ecm,must have been a connection at the computer. Trouble codes: P0328.
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2003 Chevrolet Monte Carlo SS 3.8L odometer, radio
It turned out that there was a burnt section of the headlight switch. Replaced the switch and all is good.
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2005 Chevrolet Silverado 2500 HD 6.0L No Start
IT IS FIXED !!! THANKS TO EVERYONE WHO RESPONDED, WITHOUT YOUR INPUT AND SUGGESTIONS I WOULDN'T HAVE DON [...] IT. IT WAS A GROUND WIRE THAT A RODENT CHEWED THROUGH BEHIND THE INTAKE ON THE RIGHT SIDE AND BREAKS OUT OF THE ENGINE HARNESS AND CONNECTS TO THE BELL ...
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1992 GMC C1500 Sierra SLE 5.7L Dash VIN: 1GTDC14K5N
Vehicle will not be repaired at this time. Listed are some very useful suggestions: 1. Check for loose aftermarket radio. 2. Check intermediate shaft for rattle and for broken dash area welds. 3. Check for speedo/cable noise. 4. Check for wiring harness in en...
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1995 GMC C1500 Suburban 5.7L Radio VIN: 3GKEC16K6S
Thank you for the help i had this vehicle 8 diffrent times over the last few weeks i tried every thing from disconnecting the battery for 6 hours to leaving the key on for six to eight hours i even left the vehicle running for three hours once and none of the...
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2002 GMC Savana 2500 5.7L won't run on CNG VIN: 1GCGG25R52
I would like to thank the two guys that replied to my post.Chris [...] directed me to,I was able to determi...
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1992 Pontiac Sunbird LE Value Leader 2.0L Engine VIN: 1G2JC51HXN
Thank you for the help, most replies said that the motor can come out either way if it is an automatic trans. With a manual trans the engine must come out the bottom. This car was an automatic so we pulled the engine out the top- seemed to be easier and less ...
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1997 Saturn SC2 1.9L compression VIN: 1G8ZG1276W
WELL I REINSTALLED T-COVER AND OIL PAN THEN PUT EVERYTHING ELSE BACK ON AND PUT SCANNER ON IT CHECKED DATA AND CTS READING OK WAS WITHIN 2 DEGREES OF IAT . I THEN PUT A BATT CHARGER ON IT AND HELD IT TO THE FLOOR AND CRANKED IT FOR ABOUT THREE MIN AFTER DUEING...
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