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Professional Automotive Repair Technical Discussions for March 28, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Buick Rendezvous CXL 3.4L radio VIN: 3G5DA03E15 Hi all I have in my shop this Buick rendezvous the complaint is that there is a whine in the speakers with the radio off . When the customer was in the car I disconected the alternator and he said it went away reconnect the plug and the high pitch noise reappe... |
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| 1996 Cadillac Seville SLS 4.6L Poor Idle Quality, Extended crank time VIN: 1G6KS52Y4T Hi folks: This car was brought to me because of a extended crank time when starting, about 5 to 10 seconds. It sputters a little before catching,also.It sometimes has a slightly rough idle. P0300 did not come back after clearing. I first though it was low fuel... Trouble codes: P0171 (lean bank 1), P0174 (lean bank 2), P0155 (heater circuit bank 1 snnsor 2), P0300 (random missfire) |
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| 1999 Cadillac Seville SLS 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G6KS54Y2Y Ok well I hope someone out there has run in to this problem before.I have this Cadillac,1999 SLS it has misfire on cylinder #4 dead miss also has slight miss on #5 anyway I have tried everything I can think of to find the cause of this misfire,Came in with com... Trouble codes: P0304, P0300 (Random missfire) |
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| 2005 Cadillac STS 3.6L car VIN: 1GBDM197X5 customer comes in with timing parts chains tensioners and gaskets want me to put it in I did and customer still has same problem vibration in drive checked all motor & trans mounts ok and I could not find where the vibration is coming from dealer said it's tim... |
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| 1964 Chevrolet Corvair 2.7L wont rev over 1,500 VIN: 40667W2711 Vehicle towed in would not start. Fuel tank was leak. Pulled tank and had repaired. Started but ran poorly. Put in plugs, wires, cap and rotor, and vacuum advance. Vehicle starts very good, but on test drive it will not go over approx 35=40 mph. I am quite sur... |
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| 1987 Chevrolet S10 2.8L Misfire, MIL Lamp on VIN: 1GCCS14R3H Hi Guys & Gals, 87 S10 PU 2.8L V6. Starts and idles OK for over 200K miles on it. Runs pretty well too but at cruising speed there is a continual miss or stumble. Not horrible but noticeable. Checked plugs, cap, rotor, (all recently new) cleaned TBI, tried MAP... |
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| 1992 Chevrolet C2500 Silverado 5.7L drive VIN: 1GCFC24K1N Customer states truck was operating fine. Stopped for a stop sign. Pulled forward a few hundred feet and truck made a clunk noise and quit moving. No forward gears in any gearshift lever position. Reverse works normally. I am not a big Automatic Transmission g... |
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| 1998 Chevrolet Blazer 4.3L Mil VIN: 1GNCS13W5W I have this 98 S-10 Blazer that I can't seem to figure out why this p0446 code keeps coming back intermitantly. I replaced the vent valve with my fingers crossed because I couldn't find any failures, but code back in 100 miles. I have gone through the diagno... Trouble codes: P0446 |
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| 2005 Chevrolet Avalanche 1500 LS 5.3L transfercase VIN: 3GNEK12Z15 Hi all, I hope I can get some help and direction on this. including testing advice. sorry for long story but I feel it's needed. Customer's complaint was, It intermittently went into 4wd. (this has 4wd and auto) not sure which one he ment. and also the service... |
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| 2006 Chevrolet Avalanche 1500 LT 5.3L ABS Pump VIN: 3GNEK12716 Customer brought in his 2006 Avalanche complaining of occasional vibration/noise from the front end on initial acceleration from a stop. It took me a while to recreate the problem and it does not occur with regularity. From a dead stop at speeds below 10MPH th... |
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| 2005 GMC Envoy XL SLT 5.3L No Start VIN: 1GKET16M05 Hi all. I replaced the engine on this Envoy three months ago with a Jasper crate engine. It was the only crate available. Everything has been fine since then until today. The vehicle came in by hook complaining of a no start no crank. I found no power to the s... Trouble codes: U1000 |
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| 2004 Pontiac Vibe 1.8L no reverse VIN: 5Y2SL62884 i have no reverse it has forward in nuetral and forward in park all positions also forward in reverse and it will only go forward fluid was low 2 quarts topped it off still same problem |
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| 2003 Saturn Vue 2.2L Timing Chain VIN: 5GZCZ23D63 After much testing found timing chain tennsioner had broken & chain had skiped. I have never done one of these & mitchel on demand makes no sense to me. Has any body done timing chain balanceshaft chain & waterpump on one of these? any help would be appreciate... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1996 Chevrolet C2500 6.5L Stall, Misfire, MIL Lamp on VIN: 1GCGC29FXT Craig from michigan and jim from B.C. were in the right area. Once the problem occured when I had the veh. I was pretty sure I was ingesting air in the system or just starving for fuel. Removed the intake to inspect all hoses etc. replaced a couple of clamps ... Trouble codes: P0251 (Cam reference signal missing), P0275 (Cyl. 5 balance out of range). |
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| 2000 Chevrolet Suburban 1500 LS 5.3L unknown VIN: 3GNFK16T9Y The customer returned for a brief visit and I have installed some more missing bolts on the fender supports to radiator support. Installed a battery hold bracket and greased the steering shaft. None of which helped. The axles seem tight and there was little pl... |
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| 2005 Chevrolet Corvette 6.0L Harmonic Balancer VIN: 1G1YY34U65 Ended up being a pretty easy job, pulled the abs pack and moved all the brake/power steering lines out of the way. Steering gear slid out the lh side after taking the bolts to the subframe loose. Only had to drop the front of the subframe about 1/2 inch. The b... |
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| 1992 Saturn SL1 1.9L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 1G8ZG5498N First let me thank you all for the replies. After all of this, found that it only has 1 sensor with dual readings, sensor A reading for start up until closed loop then switches to sensor B reading for running temp. ended up replacing coolant temp sensor and al... |
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| 1999 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZH5284X After Map was replaced and code cleared, light cam back on once but has not since then. Customer lives near shop and stops by once in a while to say hi. So far, no codes for over a month. So, we're not sure if it's fixed, but I thought I would close post sinc... Trouble codes: P0401. |
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