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Professional Automotive Repair Technical Discussions for May 24, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Buick LeSabre Custom 3.8L Vents VIN: 1G4HR54K7Y Hi First of all thanks for all your help this biuck is driving me nuts. I have two issues the first is that the air is cold on pass side and hot on drivers side. I have charged the ac system to the correct amount and no change. The second is the air now only b... |
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| 2003 Cadillac CTS 3.2L No Start, Poor Idle Quality VIN: 1G6DM57N63 Customer states that when he stops to put fuel in vehicle of any amount the car is hard to start or will not start for a while. When car was first brought in we could not duplicate and returned vehicle. several days later vehicle returned for same problem. It ... |
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| 1976 Chevrolet C10 Scottsdale 5.7L crankshaft While reinstalling the crankshaft balancer using a installation tool the tool broke leaving a piece screwed into the crankshaft with the broken end almost flush with the end of the crankshaft. Does anyone know of a tool/jig/etc to fit over the end of the cran... |
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| 1992 Chevrolet Corvette 5.7L Booster VIN: 1G1YY23P2N Can any of you corvette guru's help me. I got this 92 vette that came with a cracked booster at the vacuum inlet. It is a plastic booster.all was fixed. Came back 2 weeks later cracked agian. Defective part? replaced agian,same thing about 2 weeks back cracked... |
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| 1996 Chevrolet Monte Carlo LS 3.1L Stall VIN: ZG1WW1ZMXT Another tech is working on this one and has asked my help. The car will run for 10 minutes and then die. Will not restart for about 10 minutes, and then will start and run for 2 minutes and die again. No spark in the no start condition. The coils, ignition mod... |
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| 2001 Chevrolet Express 3500 5.7L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 1GCHG35R91 I have a slight misfire on #5, #7 and sometimes #6 and #2 cylinders. Primarely it is #5 and #7 though. At idle it runs smooth with only showing a misfire on those 2 cylinders sometimes(count is below 5). When I give it gas for a few seconds(vehicle in park / n... Trouble codes: P0300 |
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| 2001 Chevrolet Blazer LT 4.3L Steering Column VIN: 1GNDT13W91 The noise is more of a groaning noise while turning the wheel. It seems to be worse when turning right after turning to left limit. It sounds like it is coming from the steering column just below the wheel. Front suspension is tight, power steering pump has be... |
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| 2005 Chevrolet Uplander 3.5L rear suspension VIN: 1GNDV23165 GOOD EVENING ALL This uplander has a thumping noise in rear suspension,you can hear it more going over railroad tracks.It almost sounds like spare tire rattling but its not.Replaced rear shocks, checked bushings in trailing arms seem ok.This is a front wheel d... |
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| 2006 Chevrolet Cobalt LS 2.2L main bearing bolts VIN: 1G1AL58F46 Calling all GM techs. I have a 2.2 here that is leaking oil where the two pieces of the engine block come together. The main bearing/lower block bolts are supposed to be replaced according to Shopkey since thay are TTY bolts. We kinda got screwed by our local ... |
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| 2008 Chevrolet Silverado 1500 WT 4.3L Misfire, MIL Lamp on VIN: 1GCEK14X28 Vehicle came in with misfire and popping thru intake(as in lean) on acceleration with misfire counts predominate on #1 cylinder. Spark plugs black. Changed plugs and left here running perfect after finding no other problems. Back 2 days later with same problem... Trouble codes: P0300 |
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| 1998 GMC Sonoma SLS 2.2L Engine VIN: 1GTCS144WK It overheats with a/c on with speeds above 50 mph, also a/c off overheats above 75mph. Most of the lower bumper (which is all part of the entire bumper cover) is missing. I guess mostly i just need to know if the missing lower piece could cause this condition.... |
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| 2001 GMC Yukon XL 1500 SLE 5.3L lean surge VIN: 3GKEC16T21 Truck surges and runs lean on bank 1 under load(hard acceleration). Fuel trim @ + 20%. Runs fine under normal driving (fuel trims OK). Idles decent @ 20" vac. Runs good until it warms up (closed loop). Smoke machine or propane will not locate vac. leak. checke... Trouble codes: P0300 |
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| 2002 GMC W4500 Forward W4S042 4.8L Wont shut down VIN: J8DC4B1492 We have a 2002 Isuzu NPR/GMC W4500 with a 4.8-liter diesel and 199,680 miles. It will not shut down. They opened the water separator, that worked:) After bleeding the fuel system and driving it to the shop we have the same issue. If we manually move the shut d... Trouble codes: 11 (VS8 1 Circuit), 17 (Inhibit switch) |
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| 2003 GMC Sierra 2500 HD 6.6L Passenger side power windows VIN: 1GTHK23113 No power to window switches on either passenger door, orange wire, supposed to come from a 25 amp circuit breaker for rt door, supposed to be in the relay box left of steering column, have a good picture of the relay box in Alldata, no relay box to be found on... |
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| 2004 GMC Sierra 2500 HD 6.6L No Start, Stall VIN: 1GTHK23124 Need some help with this one! Customer's complaint is that after sitting for a few days the truck will start and then stall right away. He can get it going if he pumps up the priming pump at the fuel filter. This happens very intermittently. After replacing th... |
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| 2008 Hummer H3 3.7L Misfire VIN: 5TGTEN13EX I've got the vehicle coming in 2days from now to run low pressure cylinder leakdown test and clean fuel injectors again. any other ideas? Trouble codes: P0300 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1998 Cadillac Seville STS 4.6L Blower VIN: 1G6KY5493W had 8 replies right away. most hit it on the head - a plugged cabin filter. who was the rocket scientist that designed this one??? i have replaced heater cores that were easier than this!!! no wonder it had never been changed - it is serviced from the drive... |
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| 1997 Chevrolet Blazer 4.3L No Start VIN: 1GNC513W2V OK IN THE BEGINNING I TOLD YOU I HAD NO FUEL PRESSURE-BUT I WAS WRONG-THE CONNECTION WAS BAD ON THE VALVE-BUT WE DID NOT HAVE INJECTOR PULSE OR SPARK-WE FOUND A PART OF THE WIRING HARNESS THAT WAS CHEWED BY A RODENT-WE FIXED IT-STILL NO SPARK OR INJECTOR PULSE... |
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| 1999 Chevrolet Cavalier LS 2.2L Cruise VIN: IGIJF5243X on friday we reinstalled all original parts and the customer needed the car over the weekend.monday had a simular car in so i checked cruise signals on it to compare and found the inhibit voltage change when put in drive.travis had a good idea so i will check ... |
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| 2001 Chevrolet Silverado 2500 HD LT 6.6L No Start VIN: 1GCHK29151 replaced dimmer switch and turn signal switch. found a mostly bad fuse . fuse was blown,but when tested with a test light it check OK visual inspection showed otherwise.thanks to all who responded |
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| 2004 Chevrolet Impala 3.4L Instrument Panel VIN: 2G1WF52E54 Well everyone, the instrument cluster was bad. Replacing it fixed the problem. Thanks to everyone who replied. Something to remember for the future: Don't use previous repairs as a diagnosis of the current vehicle, but rather use them as a reference guide.... |
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| 2001 GMC Safari SLE 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTDM19W61 we pulled the heads and the exhaust valves were sucked up onto heads.Had heads redone with new guides and seats.Alls well and thanks to all who helped. Trouble codes: P0155, P0300, P0452. |
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