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Professional Automotive Repair Technical Discussions for May 18, 2007 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2006 Buick Rendezvous CXL 3.5L restraint syste VIN: 3G5DA03L06 This one comes to us from a local Vo-Tech school. It was involved in a small front end collision. We were told that the driver's side airbag deployed. They repaired the body then they replaced the airbag and both front seatbelts from a 2005 Rendezvous. We clea... |
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| 1988 Cadillac Allante 4.1L ext. lites/output switch modules VIN: 1G6VR3175J Hi guys-we need help- if anyone remembers the old cad allantes and their exterior lighting systems. this 88 model will not set any lighting codes unless you unplug a burning bulb or any output switch module [osm]so we don't know where to start diagnosis. have ... |
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| 1998 Cadillac DeVille 4.6L No Start VIN: 1G6KD54Y9W greetings to all,car was towed to me for a no start the owners states they disconnected battery for a long period of time and now it has a display saying theft system problem car may noy start.i did pull a code for theft system and i did try the relearn proced... Trouble codes: P1631 (theft system) |
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| 2001 Cadillac Seville SLS 4.6L Automatic climate control VIN: 2G6KS54Y01 Customer is complaining that the HVAC system will intermittently blow hot air. If they lower the temperature low enough they can get cool air again. This will happen on hot days when the system should remain cool. I have not verified the symptoms and am not ab... |
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| 2004 Cadillac SRX 4.6L Odor from vents VIN: 1GYDE63A54 This is a very strange condition. After driving vehicle for approx. 5-10 min. with the a/c on the customers complains of a propane smells coming out of the dash vents. I was able to duplicate. Checked the drain for the evap case and it is working, we can see w... |
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| 1991 Chevrolet V3500 Silverado 6.2L late shift VIN: 1GCHV33N3M hi guys and girls.well the swap from 454 to 6.5 diesel went pretty good.now i have one problem left.i left the original ecm in the truck because i dont feel its necessary to use the diesel ecm(although i do have it).the tps is hooked up and working good,eng te... |
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| 1998 Chevrolet Malibu LS 3.1L blleding system VIN: 1G1NE52M0W car came to us with right front pads gone, had replaced front brakes one month, 3000 miles ago. we have replaced pads, rotors, both front calipers. afterwards, we lost brake pedal, so replaced master cylinder. we have dealership bleeding proceedure on hand, ho... |
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| 2000 Chevrolet Malibu 3.1L power steering VIN: 1G1ND52J2Y steering is very hard when car is stopped, Pump whines, hoses get hot fast, I dont have a pressure tester, lent it out---gone.. Do you all think I would get away with just a pump. Only thing I found in archives was everbody changed both rack & pump. There... |
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| 2003 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNDS13503 Hi all, I have this trailblazer with no start only when it cold(in the morning only) I have read the fix data base and most of us rec. to replace the ignition switch and the throttle body assembly, so I replace those two but still not solve the problem. I chec... |
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| 2004 Chevrolet C4500 Kodiak C4C042 6.6L No Start VIN: 1GBC4C1104 this truck will not start has no power to the ecm, fuel pump. Cluster was jumping all over the placewith key on. replaced cluster now it go to [...] and 40 mph and will not start still. |
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| 2000 GMC Yukon XL 1500 SLE 5.3L Transfer case VIN: 3GKF16T8YG Hello Group. Vehicle came to us with transfer case shifting in-op. ATC fuse blown. No com with TC module. Installed 15 amp circuit breaker, now have com and a C0387. Circuit breaker trips during shift attempt. Replaced shift motor (we had a new one). Cleared c... |
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| 2001 GMC Sierra 3500 SL 6.6L Excessive Emissions VIN: 1GTJK39121 truck has light to medium white smoke at idle only. runs great, idles smooth, no coolant loss, dosen't use oil. balance rates +/-.5 to 3.5 on scanner. inj.balance=all cyls feel the same. smoke sort of smells like fuel. i think it's time for all injectors again... |
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| 2005 GMC Yukon XL 1500 SLE 5.3L 1st gear VIN: 1GCEK11111 i have a problem, if you roll off from a stop without using the accelerator pedal, and than roll into the throttle it seems to slip and than it bangs into 1st gear, after that all is well, no other problems. it is very intermittant, 4 times in 4 months, thanks... |
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| 1995 Pontiac Bonneville SE 3.8L MIL Lamp on has any body ran into a ground or computer problem setting a map code have replaced map twice and code comes right back immediately. map reading is 2.5 volts at idle drops to 1.7 under load. |
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| 2001 Pontiac Bonneville SSEi 3.8L MIL Lamp on VIN: 1G2HZ541X1 I have recently recieved this car after it has been to two different GM dealers, multiple times for code P0401. The light will come about every 7-10 days and if left on will turn off some times and then reappear. They have replaced EGR twice, clened the passag... Trouble codes: P0401 (Insuffiecient Egr Flow Detected) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP54K91 Thanks to all who took time to read this post. Thomas and Michael were on the right track, The lack of communication was due to a component in the network(purple wire) between all the modules pulling the signal down. If you have a car that has no Communicati... |
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| 1996 Cadillac Eldorado ETC 4.6L MIL Lamp on VIN: 1G6ET1294T replaced injector o rings ,since fuel rail was off, rplaced intake gasket. o rings and gaskets all looked good but fuel trim and o2 readings are now ok.thanks to all who responded.iatn is like having a extra tech Trouble codes: 174 (lean bank 2). |
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| 1993 Chevrolet C1500 Cheyenne 5.7L Drive shaft VIN: 1GCEC19K2P Thanks to all that responded to my help request. At this time the customer doesn't want to spend any more money on this truck. He said it has done it for two year and he'll just live with it. My thought is that it is the bushing. Thanks again for all the help!... |
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| 1994 Chevrolet K1500 Cheyenne 6.5L Excessive Emissions, loss of power VIN: 2GCEK19SXX Well guys should have went with our first thoughts, clogged catalytic converter , we didnt looked hard enough to find it because I had a diesel tech here and i said it felt lie a clogged cat and he said no not til 95. I looked under didnt see one... iwas wrong... |
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| 1998 Chevrolet Venture 3.4L MIL Lamp on VIN: 1GNDX06E3W Well this is actually somewhat fixed. After the pcm reflash the fuel trim still read the same as before. Decided to let the customer drive it two weeks with no mil lamp on. I believe the reflash didn't fix the fuel trim problem but what it did was it just stop... Trouble codes: P0172 (fuel system trim bank1 rich). |
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| 1998 Chevrolet S10 LS 4.3L Unknown VIN: 1GCCS19X8W well, this turned out to be a loose converter, goes to show not to always trust new parts. I put in a new converter and now my truck is back to life again!! Thanks for the input. I had a bad feeling it was going to be this, just didnt want to rip the trans bac... |
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| 2000 Chevrolet Blazer LS 4.3L Leaking fuel VIN: 1GNDT13W6Y Thanks for the replies on this vehicle . Sorry but the post completely slipped my aging mind . It seems that the canister and vent sol. have fixed this one , at least no further complaints have been fielded from the customer . Some people suggested both parts ... |
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| 2003 Chevrolet Trailblazer North Face 4.2L body VIN: 1GNET16S13 thanks for the help did a lot of inspection on trk.axles drive shaft etc. ended up sending it out for road force balance test drove an vib seems to be gone thanks again for help |
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| 2003 Chevrolet Tahoe LS 5.3L Battery drained VIN: 1GNEK13293 I had 11 replies which I want to thank, some said check my meter for accuracy, because it was not reading a draw. I had it checked and it was ok. One chevy tech said check for mirror lights on and computer flash. I check for mirror lights and they were on, It ... |
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| 1997 Geo Metro LSi 1.3L No Start, Stall VIN: 2C1MR2291V first of alli would like topersonaly thank all that replied to my request ive triedall suggestions even a few that werent posted some a little un ortodox but what the heck ill try anything at this point car is still not repaired customer is willing to let me c... |
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| 1992 GMC Jimmy SLE 4.3L No Start VIN: 1GKDT13Z9N thank's for your reply's guy's. turn's out we had 2 bad coil's right out of box. we bypassed reference wire from distributor to coil & got the reference we were looking for. so we bought different brand coil & guess what it started right up !!!thank's again fo... |
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| 1998 GMC Jimmy SL 4.3L Battery VIN: W6V2551872 I boosted the truck this am to get to work, 40 minutes later I opened the hood to a hot battery. I then took apart the rear hatch and disabled the lock actuator. Most of the drain gone, I also found the hood light wiring pinched close to the cowl, the wires we... |
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| 1988 Oldsmobile Toronado Trofeo 3.8L Digital Dash VIN: 1G3EV11C9J Sorry it took so long to close this help request I had trouble getting the vehicle back to the shop to run further tests. Actually, I haven't 'fixed' the vehicle yet. I talked with Tom @ Mr. Wizzard yesterday and decided to send him the cluster to check out. I... |
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| 1998 Pontiac Firebird Firehawk 5.7L Starting VIN: 2G2FV22G5W dealer flashed bcm thats it thanks to all who helped us |
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