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Professional Automotive Repair Technical Discussions for October 15, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1992 Buick Roadmaster 5.7L Surge, Stall VIN: 1G4BN5375N IAC goes to 180 counts when snap on scan tool is hooked up and vehicle is in gear. With scanner unplugged, in gear, it stalls. Clear Flood--YES. Idle goes up and down and will stall the vehicle. Any ideas? Thanks. Scott |
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| 1993 Chevrolet C1500 Cheyenne 5.7L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1GCEC14K6P Hi Techs - I'm scratching my head on this one. We replaced the longblock on this truck six months ago, and it ran fine until yesterday, when it idled rough on startup, the CEL came on, and it smoothed out somewhat. The truck then drove OK for a half-hour and s... Trouble codes: 33 (MAP sensor high) |
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| 1998 Chevrolet Express 1500 5.7L drivetrain VIN: 1GBFG15R4W Customer states that this noise was there when he purchased it used, but has grown worse. Sometimes it is said to be very bad and the kids can't hear the TV. Others have looked at it but nothing has been done to it. Hope someone may have heard about this. Veh... |
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| 1999 Chevrolet K1500 Suburban 5.7L Hesitation, Misfire, MIL Lamp on VIN: 1GNFK16R0X This vehicle runs fine around town. Under extreme load mil will flash a few times and stay on with code 300. Cylinder 4 shows miss. Other cylinders barely show anything wrong. compression good, fuel pressure good Trouble codes: 300 (cylinder 4 shows misfires) |
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| 1999 Chevrolet Silverado 1500 5.3L Communication VIN: 1GCEK14T7X Truck has complaint of battery going dead over night intermittently. Didn't find any lingering draw after initial 2 amp shuts off. He also reports the battery and/or low fuel warning will come on while driving or after start-up. Shutting the truck off and re-s... |
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| 1999 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Surge VIN: 2GCEK19T9X hey everybody! we have a weird one here. the truck acts like it has an internal vaccuum leak. when it's cold and only cold it has a very rough idle and surging almost to the point of stalling, but then it will recover. we soaked the outside of the manifold for... |
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| 1999 Chevrolet Silverado 2500 6.0L Misfire, MIL Lamp on VIN: 1GCGK29U5X this truck came in with check engine light on code p0300 randonm missfire found bad fuel pressure reg. and intake leaking (vacuum leak) replaced both no luck same problem. only cylinder showing a missfire is # seven I have good spark at the plug and good pulse... Trouble codes: P0300 |
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| 2000 Chevrolet Suburban 1500 LT 5.3L istrument cluster VIN: 3GNFK16T0Y nasty intermittant electrical problem with instrument cluster. ipc goes haywire,GUAGES DEAD & FLUTTERING,IPC LIGHTS FLICKERING,MESSAGE SCREEN FLICKERING,no communication with any modules WHEN CONDITION IS PRESENT(data link goes dead but still have power to sca... |
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| 1990 Oldsmobile Cutlass Supreme SL 3.1L Stall VIN: 1G3WS54TXL this vehical will stall after a drive turn engine off then restart a few minutes later put in reverse stalls. restarts rev up stalls again. fuel pressure good spark good we got to the point of changing parts.coil and ing.mod IAC MAP. all pids look good seems l... |
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| 1994 Oldsmobile Cutlass Supreme S 3.4L secondary timing belt VIN: 1G3WH15X3R 1st I want you to know I have never worked on 1 of these (3.4 dohc). I have a couple of friends at chevy and olds dealerships and they can't find to much on this engine (no service bulletins they say)but anyway. secondary timing belt broke after I tore it the... |
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| 1998 Oldsmobile Aurora 4.0L Cooling system VIN: 1G3GR62C3W Got an Aurora that is pushing coolant out the reservoir. Pressure test system, will hold at 15 psi. Vacuum test, will hold 25 inches. Have replaced all items listed and still no go. No oil leaks on ground. No water in oil. No steam out exhaust. Out of ideas, P... |
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| 2001 Oldsmobile Aurora 4.0L Starter VIN: 1G3GS64C41 This vehicle has an intermittent "no crank" condition, for the past 2 years, and is getting slightly more regular in failure in the last 4 months. Early on, the dealer could not reproduce the problem, therefore no repair was attempted at that time. We have rul... |
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| 1991 Pontiac Sunbird GT 3.1L Cuts out VIN: 1G2JU11T3M Hi there. This car has been to four other shops both here and in other cities. At 3800 rpm`s it acts just like a governor is cutting in. If you accelerate very lightly, it will go past 4000 rpm just barely. You can hold the throttle anywhere past 16% and it wi... |
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| 1995 Pontiac Bonneville SE 3.8L Cuts out, Stall VIN: 1G2HX53L7N Hi, Have this bonny int. stalls while idling will start back up (Customer says sometime he has to wait). Captured these images during running bad then stall out.Low amp probe on pink/black power to module and one is crank sensor to module any help is welcome... |
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| 2000 Saturn LS2 3.0L MIL Lamp on VIN: 1G8JW52R2Y I have a current Genisis Scanner but it does not have and evap tests for this car, I think the problem may be the vent solenoid but not sure what to look at on this or how I can test this solenoid since my scanner dosen't test this. Gas cap was tight and appe... Trouble codes: P0455 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1993 Cadillac DeVille 4.9L fuse in relay box under glove box labeled ERLS VIN: 1G6CD53B2P IATN IS THE BEST( most everyone said to check and replace compressor clucth coil, as car got hotter,further testing ohms went from .6 to 1.2 in 1/2 hour of running at idle, amp draw went up as well, replaced compressor clucth assembly, front compressor seal an... |
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| 1996 Chevrolet K3500 6.5L Stall VIN: 1GBHK34FOT The solution to the problem was replace fuel driver module on driver side of injection pump (black box). Got two good tips from Richard & Kevin on making sure I remove the resistor from old driver module and replace in new module. The other tip I got From Bren... Trouble codes: P1216, P1217. |
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| 2002 Chevrolet Trailblazer LS 4.2L steering noise VIN: 1GNDT13S22 All of the replys were appreciated very much. My Chevy Dealer has just advised me that Chevrolet Factory Tech has received additional reports of this problem and is now working on a solution. Thanks very much to all. Ray [...] Auto Electric |
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| 2003 Chevrolet Tahoe LS 4.8L MIL Lamp on VIN: 1GNEC13V23 Hi to all. It is fixed,I hope. It was the yellow wire near the the throttle body connector. I replaced the whole connector,some of the other wires did not look good. The connector was $73.00. Special thanks to Brian [...] Jr. Trouble codes: P1516 (Elec. throttle mod. vs throttle pos.). |
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| 2003 Chevrolet 1500 5.3L Cuts out, Stall VIN: 3GNEC16253 We actually did do some of the repairs suggested by the people responding. Fuel pump changed, gas tank cleaned out, fuel changed to non-ethanol blend, injectors cleaned. Wiring harness changed to fuel pump as well as all grounding cables checked for corrosion.... |
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| 1996 Geo Metro LSi 1.3L bucking VIN: 2C1MR5294T Vehicle has been running daily for a week now and the concern has not surfaced. Am keeping fingers crossed. I lean toward the reply that the range switch was corroded as this was a boneyard trans and most of those things are stored outside around here. It may ... Trouble codes: P0505 (Isc). |
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| 1999 Oldsmobile Alero GL 2.4L No Start, MIL Lamp on VIN: 1G3NL52T2X thanks everyone who replied and once again stupid obvious was wrong! Following the KISS keep it simple stupid principal can do a lot of good. The fix happened to be a BCM problem the replacement on was bad due to using a used part. I went and ordered a new one... Trouble codes: P1630, P1631, P1626, U1301, U1040, U1064. |
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| 1995 Pontiac Trans Sport 3.1L low HVAC airflow VIN: 1GDMU06D9S Thanks for your input. Most replies stated to check the evaporator for lint, hair, etc. Some replies said to make sure the fan was not turning backwards. Another simply stated that the vehicle had a poor airflow design. We checked all of these thing, in fact... |
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