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Professional Automotive Repair Technical Discussions for June 1, 2009 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1993 Chevrolet Blazer Cheyenne 5.7L Surge, Poor Fuel Economy, MIL Lamp on VIN: 1GNEK18K6P Received this truck from another shop they have given up on it. When cold this truck will run rich but idle is good. When it warms up and goes to closed loop idle quality is poor And it will start a bad surge under light load. Engine will almost die then surge... Trouble codes: 43 (ESC System fault) |
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| 1994 Chevrolet C1500 Suburban Silverado 5.7L piston ring VIN: 1GNEC16KXR Howdy, One of my techs, replaced the trans on this sub and cleaned the plugs due to moderate oil fouling, I guess he may have left some cleaning media (glass bead blaster) in the tip of the plug and now the #3 cylinder is scored and we lost compression. The ot... |
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| 1994 Chevrolet Lumina APV 3.1L Stall VIN: 1GNDU06D2R vehicle will stall at idle in gear don't have to drive just sit in bay and it will die after a while . scanner shows batt voltage and fuel pump voltage go to zero when this happens. pin point at ecm. they stay at batt volts using vantage and graphing.but snap-... |
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| 2001 Chevrolet Silverado 1500 4.3L Cuts out VIN: 2GCEC19W61 customer came in with a stumble or a hesitation at steady drive and at accel. found bulliten for timing chain too loose causeing same problem. change timing chain,gears,and tensioner. fix it for a day. change crank sensor better but not fix still does same thi... Trouble codes: P0335 (not detecting crank singal for three seconds) |
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| 2003 Chevrolet Impala LS 3.8L tcc VIN: 2G1WH55K93 This vehicle came in with transmission not shifting properly. Check engine light on and code p0742. Followed flow chart for this code in alldata. Vehicle originally came from a dealership where they replaced tcc pwm solenoid. After replacement of solenoid prob... |
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| 2005 Chevrolet Malibu LS 3.5L vents VIN: 1G1ZT54865 the pass side vents blow cold but the driver side vents blow warm i have changed out the head unit and the air temp actuor |
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| 1998 GMC K3500 Sierra SL 5.7L Unknown VIN: 1GTHK39R2W Truck came in with brake pull. It was your normal ABS hub pull to the left. We replaced the right hub and now it pulls to the left. Replace the left hub and now it starts to pull left then straight. Check and find bad right upper ball joint. Replace it. Still ... |
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| 1996 Pontiac Bonneville SE 3.8L No park -no drive My son's bonneville on a 300 mile trip shifted fine and no slipping. Coming home we stopped at a rest area.Got back in car,backed out,put in drive and nothing. Pulled it into 1st and it pulled out like it was in 2nd,we shifted to drive and it ran and shifted f... |
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| 1997 Pontiac Grand Prix GT 3.8L Vacuum lines VIN: 1G2WP52K6V Customer came in with 2 complains first being intake leaking water and oil and his AC not changing vents. While doing the intake noticed the line coming off the intake to Vacuum ball was broken in several places. Following it down to the Vacuum ball found all ... |
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| 2002 Pontiac Sunfire SE 2.2L Misfire this car just seems to misfire at times with a light load to accelerate but flooring it to the floor it will be fine, no codes, no misfire counters, fuel pressure ok when misfiring, now the fun part, the 02 sensor leans out for like 1 second when it jerks, it'... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1982 Chevrolet Suburban K20 6.2L headlights, dash lights,tail lights,ammeter, radio Thanks to all, again im really sorry i had to post this at all. At the starter solenoid the fusible link that has 2 wires going into it was blown, I replaced all of them. everything is good. Like i said in the post this truck has been a yard truck since 1986,i... |
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| 2001 Chevrolet Astro 4.3L Misfire, MIL Lamp on VIN: 1GBDM19W01 eng has low compression # 3 Cylinder eng has been sent out to be rebuilt. 30 psi all the rest have 110 to 120 psi noticed a miss in the cranking rythem ran compression test on all cylinders. cust requested an eng overhaul. Trouble codes: P0300 (random misfire). |
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| 2002 Chevrolet Trailblazer LS 4.2L brake lockup VIN: 1GNDT13S42 MASTER. REMOVED AND BENCHTESTED. GOT IT TO STICK AFTER A WHILE. OPENED MASTER NAD FOUND METAL |
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| 2002 Chevrolet Trailblazer LS 4.2L brakes VIN: 1GNDT13S42 MASTER HAD METAL IN IT. STICKING RANDOMLY. REPLACED AND BRAKES ARE PERFECT |
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| 2006 Chevrolet Express 2500 4.8L Hesitation, Misfire, MIL Lamp on VIN: 1GCGG29V16 Thanks guys for the replies. #7 cly had missfire so we were actually kept going after # 7 than we decided to scope all the clys injector. what we found that #8 cly would interm drop out. we decided to investigate #8 cly inj. # 8 cly injector & primary coil wir... Trouble codes: P0200, P0300. |
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| 2006 GMC Sierra 1500 SL 4.3L converter VIN: 1GTEC14X56 THANKS TO EVERYONE FOR THE HELP. CUSTOMER HAS DECIDED NOT TO REPAIR THE TRANSMISSION PROBLEM AT THIS TIME. IF HE DECIDES TO REPAIR THE TRANSMISSION PROBLEM I WILL POST WHAT I FIND. THANKS AGAIN FOR THE HELP. FRED |
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| 1995 Oldsmobile Cutlass Ciera 3.1L ckp VIN: 1G3AJ55M6S im 320 aint no way getting ckp reaching under alt Jaime forget under car theres about 1 inch room to get ckp the way i did it was to take right tire off and reach in over halfshaft push hand all the way in to feel ckp i changed by feel no problem at all... |
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| 2002 Saturn SL1 1.9L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 1G8ZH52832 Thanks to all who replied. I had already installed a new Saturn filter this last time. So far so good. Customer was in for some maintanance last week and everything is fine. It hasn't been quite a month yet though. I'm waiting for some feed back from CQ and N... Trouble codes: P0171 (Lean exhaust Bank one). |
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