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Professional Automotive Repair Technical Discussions for April 28, 2008 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1998 Cadillac DeVille 4.6L compresser VIN: 1234859753 hey fellows this customer came to me to instakll new compresser i checked pressures 40 low 195 high compresser was cycling at 40 and 200 pulled 1312 with tech 2 tested sensor condem it and replaced got rid of code {high side ref temp sensor} still same thing f... |
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| 1992 Chevrolet Lumina Euro 3.4L pressure plate VIN: 2G1WP11X1N cust. came in with blown up clutch, should be simple r and r . clutch actuation is different here. release bearing snaps into pressure plate ( integral snap ring to pressure plate). when clutch is disengaged release bearing is pulled away from clutch disc, opp... |
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| 1998 Chevrolet Malibu 2.4L rod bearings VIN: 1G1ND52T6W can anyone please advise me ... is it possible to do rod bearings w/o the removal of balance shaft unit? is engine removal required..please advise thank you in advance carl [...] |
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| 2000 Chevrolet Silverado 2500 6.0L compressor VIN: 1GCGK24U2Y This unit has manual climate control unit that is controlled via the PCM. Customer complaint is intermitant loss of cooling. Charge is ok, pressures good, when it cools it cools well. Commands via the switch or actuation are consistant. When it is in failur... |
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| 2000 Chevrolet C3500 7.4L Fuel Gauge VIN: 1GBKC34J5Y I just installed the transfer pump for the rear tank not suppling the front. I also just replaced the balance module. I believe I did all the test steps 4 months ago when truck was in here and customer declined replacing the module then. It does not seem the b... |
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| 2002 Chevrolet Express 3500 6.5L Cuts out, Stall VIN: 1GBJG31F22 ok chevy diesel tecks i need your help on this one. this van will start up good then run for about [...] then start to miss and cough, some times it will stall, some times it will catch its self and clear up. the thing that i notice in the scan data is the... |
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| 2003 Chevrolet Impala 3.4L compressor A/C has been working sporatic for last few days. Very hot (no compressor working) yesterday and today. We could not get compressor to kick on. Changed high pressure switch inder the air box- no changes. Checked coolant temp and thermostat operation and appears... |
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| 2003 Chevrolet Impala 3.4L Misfire VIN: 2G1WF52EX3 This Impala runs very good since the convertor was replaced but the fuel trim numbers at idle are: long term-14 and short term -2 to -6. According to the scan tool it misfires on deceleration for just a second. It does this every time if you rev the engine whi... |
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| 1995 Geo Prizm 1.8L Cuts out, Misfire VIN: A2YY926493 This thing is driving me nuts. Towed in a week ago no start, major tu now have miss at idle in gear. put a new coil on(5 times)it stoped missing at idle.NOW it misses under load when you get on it. any idea? |
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| 2002 GMC Envoy SLE 4.2L Electronic VIN: 1GKDT13S32 a/c compressor will not stay running, digital tempature reading on the dash panel shows tempature of 9 degrees. set a/c control to lowest temp & compressor will start & then cut off when a/c control panel goes to 9 degrees. thinking bcm problem? |
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| 2005 Pontiac Pursuit 2.2L MIL Lamp on VIN: 1G2AJ52F85 Customer came in concerned with engine light on. Came on while on highway. Scanned codes found u2108 lost comm with abs controller. I check alldata and not much info avail for data line issues.I dont have much experirnce with data line issues either. Any help ... Trouble codes: U2108 (lost comm with abs/tcs control system) |
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| 1996 Saturn SW2 1.9L drl driving lights VIN: 1G8ZJ8274T hi got this one in with drl inop i disconnected all connectors to ip cluster and light switch and still getting power on both sides of bulb connector even with drl relay disconnected as well any input appreciated thanks |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1996 Buick Century Custom 3.1L Misfire VIN: 1G4AG55M5T Well, the vehicle appears to be fixed. Sorry it took so long to post, but I wanted to make sure this issue was resolved. I received all good responses for possible areas of concern. Since I did not do this job originally, I decided to start from scratch and... Trouble codes: P0300 (random cylinder misfire). |
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| 2001 Buick LeSabre Custom 3.8L Cuts out, Stall VIN: 1G4HP54K41 Thanks to you all... 21 excellent responses, every one valid... The fix was a MAP sensor. Ed from Florida keyed in on it. Dale from N Dakota recognized it as a fuel deprived problem. Jeff [...]. from Wisconsin suggested to recheck pid data, simple but very effe... |
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| 1997 Chevrolet Blazer 4.3L pcv valve VIN: 1GNDT13W0V i can't believe it. i've done hundreds of these things and have the throttle cable rub on the pcv tube on just two! wow! thanks to all who replied especially clyde and jeff. rerouting the cable fixed both. again, iatn saves the day. |
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| 1998 Chevrolet K3500 Cheyenne 7.4L 1-2 shift VIN: 1GCHK3356W Sorry for the late reply We removed valve body found no problems relaced 1-2 accumulator seals and put it back together problem still there.Customer needed truck and decided to drive it some more. Returned last week no second gear at all Removed Trans and tore... |
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| 2000 Chevrolet Blazer LS 4.3L Misfire VIN: 1GNDT13W2Y after several days i still cant get the truck to act up long enough to find the problem . I will close the post for now and add to it when i find the issue. |
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| 1997 Oldsmobile Achieva S 2.4L timing chain VIN: 1G3NL52T6V thanks all that helped i should of known when the tenioner didnt release i'd be in trouble.but again thanks to all that replied it was the tensioner |
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| 2002 Oldsmobile Bravada 4.2L vehicle binds in reverse VIN: 1GHDT13S52 IT WAS BROUGHT TO MY ATTENTION THROUGH THE HELP REQUEST THAT THE DECODER COULD AND WAS AN ISSUE FOR THIS BRAVADA LOCKING UP IN REVERSE. DISPITE NO CODES, BUT WITH A MORE THOROUGH LOOK AT THE TRANSAXLE PARAMETERS, (SUCH AS LOSS OF REAR DRIVE SHAFT RPMS, VS THE ... |
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| 2002 Pontiac Grand Am SE1 2.2L Excessive Emissions VIN: 1G2NF52F02 thanks for the help this p. o. s. had a jumped tooth on the timing chain the customer did not want to spend the money to fix it so he paid for the testing and pulled it out of my shop with a rope Trouble codes: P1171 (cant learn fuel delivery at acceleratio). |
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