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Prev Professional Automotive Repair Technical Discussions for April 30, 2013
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Open Help Requests for GM
Help Request Answers
1994 Chevrolet Camaro Z28 5.7L Cuts out VIN: 2G1FP22P2R
Customer states the car died on him and restarted a few times, Brought it into the shop, We let it run and after running it for 30 minutes or so, It died with a restart. Checked it out the next day and no more dieing. We let it run for hours. Its an optic spar...
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1994 Chevrolet S10 LS 4.3L Hesitation, Cuts out VIN: 1GCCS19W9R
When vehicle warms up and under load it looses power and starts bucking badly. Power brake it and same thing. Fuel pressure is 53 psi running and goes up to 60 psi when put under load. Puts out 1 pint in 25 seconds. If you add alternative fuel when under load ...
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1997 Chevrolet Astro 4.3L Stall VIN: 1GNDM19W7V
Well, inintial start is good. Shut engine off and restart and the idle will not catch. Engine will not stay running unless you hold the gas pedal. After a second or two, the idle catches and engine idles. Any ideas?
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1997 Chevrolet S10 2.2L #4cylinder VIN: 1GCCS1445V
vehicle came in with check engine light, misfire #2,#4, checked scan data, short and long term fuel trims way negative(-23), found 3 bad injectors, and replaced them. now intermitant #4 misfire. In a 20 second run time only at idle will have 15 to 20 misses. A...
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1997 Chevrolet Express 2500 LS 5.0L Unknown VIN: 1GCFG25M0V
fuel pump is on constantly upon key turned to ignition and never stops No spark or injectors operating Scan tool does not see the ecm. If i replace the ecm with a used one of the same year and engine size will she run??? or do i have to reflash/reprogram??? ...
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1998 Chevrolet C1500 Cheyenne 5.0L Poor Idle Quality, MIL Lamp on VIN: 1GCEC14M4W
Truck ran fine coming in. Motor was noisy but no codes or rough running. Put new motor in and have not been able to set timing correctly. Took out #1 plug on D/Side. Tapped around til it blew out. Put in dist with rotor pointing to the little no. 8 mark. Truck... Trouble codes: P1345
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2005 Chevrolet Colorado Z85 LS 2.8L Starter VIN: 1GCDT19875
Hi guys - first time post for help - have a truck with a starting issue - towed in - found ignition switch binding ,so replaced with dealer parts , did passlock relearn and now i have a starting issue that is puzzling - i can crank the truck and it will give m...
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2005 Chevrolet Silverado 2500 HD 6.0L power steering VIN: 1GCHK29U55
Greetings fellow techs! I already know which way I'm leaning with this particular vehicle, but thought I cast a line out just to see what kind of nibbles I'll get. So here goes... Customer dropped off his truck compaining of a whining noise, which I confirmed ...
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2006 Chevrolet Malibu LT 2.2L 1-2 shift VIN: 1G1ZT51F26
This car has me baffled. I bought the car with the intention of fixing it and giving it to my wife. The previous owner said the car started doing this out of the blue and they just didnt have the time or money to fix it. What it does is right at the start the ...
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2006 Chevrolet Silverado 1500 LT 4.8L Differential VIN: 2GCEK13V96
truck came in shop for grinding noise in front end in 4x4. test drove can hear noise. ran on hoist grinding was coming from front diff carrrier bearings. removed front diff and rebuilt. retest drove grinding noise is gone when driving straight, when you turn t...
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2009 Chevrolet Silverado 2500 HD LTZ 6.6L Belt squeal VIN: 1GCHK63669
This truck was brought to me a couple months ago and has been back 3 times now since then. The complaint is and has always been a belt squeal. As of right now, when it is started, it will be quiet for about 5 minutes and then slowly start to squeak and then ge...
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2004 GMC Envoy XL SLE 4.2L Misfire, MIL Lamp on VIN: 1GKET16S04
Customer states that this morning car ran "like a tractor" had a lack of power and was running rough. Also they smelled raw fuel near the front of the vehicle. While this was happening the check engine light was flashing and continued to flash until she lifted... Trouble codes: P0300 (Misfire detected)
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1995 Pontiac Grand Am SE 3.1L Stall, Poor idle at times VIN: 1G2NE15M9S
Boss just bought this car. Said on the way bringing it to the shop it started to idle bad, then cleared up and ran ok. I tried to pull the code by jumping the diagnostic plug to no success. So I change the iacv but it is still doing the same thing but I notice...
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Fixes & Summaries for GM
Fix/Summary Answers
2011 Buick Enclave CXL 3.6L Misfire, MIL Lamp on VIN: 5GAKRBED3B
Thank you all for the excellent responses. I appreciate all of your time. The customer declined further work on it and is taking the vehicle to the dealership to see if it can be worked on under warranty. Sorry I dont have any helpful input to add. Trouble codes: P0300, P0305.
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1992 Chevrolet S10 Blazer Sport 4.3L compressor VIN: 1GNCS13W8N
Thanks to all who gave me advice & feedback. I really appreciate it. I installed a new delco/delphi R4 compressor, evap from Amazone for less than 200$, and orifice tube. Pulled vac & charged with 134. Its working ok, I hope I dont have to replace condensor or...
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2001 Chevrolet S10 4.3L Misfire VIN: 1GCDT19W81
After some excellant help from my fellow techs I replaced #1 & #4 fuel injectors,I also replaced the distributor & after notching the clamp I was able to set it at 0. Problem solved!Thank all of you for your replies.Bill @ [...] Automotive Trouble codes: P0300 (Multiple cyl misfire).
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2002 Chevrolet Malibu LS 3.1L No Start VIN: 1G1NE52J62
WELL I THINK IT'S FIXED REPLACED THE PUMP & HARNESS AT TANK (PUMP TO BODY) PUT IT ALL BACK TOGETHER AND CHECKED AMP DRAW B+ & GROUND 4.37 AMPS CAN'T FAULT THAT THEN WHILE WATCHING PRESS. GAUGE PRESS STARTED TO DROP OFF THEN QUIT LEANED ON TOP OF PDC (COVER WAS...
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2007 Chevrolet Uplander LS 3.9L Cooling Fan VIN: 1GNDV23WX7
WHAT I FOUND HERE WAS THAT THE COOLANT TEMP SENSOR WAS NOT GIVING THE CORRECT READING FOR THE TEMP.IT WAS READING COOLER THAN WHAT ACTUAL TEMP WAS,WE USED A TEMP GUN AT THE THERMOSTAT HOUSING WAS 240,INSTALLED A NEW TEMP SWITCH AND ALL IS WELL.
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2007 Chevrolet Silverado 2500 HD LT 6.0L Transfer Case Module VIN: 1GCHK23K77
SORRY FOR THE DALAY I COMPLETELY FORGOT ABOUT IT. WHAT I CHECKED AND DOUBLE CHECKED EVERYTHING YOU GUYS WERE A GREAT HELP. FINALLY AFTER RECHECKING ALL WE DECIDED TO TRY A NEW MODULE, GUESS WHAT HAD COMMUNICATION REPROGRAMED UNIT AND ALL IS WELL.I GUESS JUST B...
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2008 GMC Sierra 2500 HD SLE 6.0L tire light VIN: 1GDHC24K08
The light is off thanks to the great advise from everyone that replied. I put the vehicle in learn mode and followed the procedure and it worked. Thanks again.
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