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Professional Automotive Repair Technical Discussions for October 13, 2010 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1995 Buick LeSabre Limited 3.8L engine VIN: 1G4HR52L6S I have a 3800 v6 here with very high oil pressure, the gauge pegs to 120 and it keeps blowing the oil filter seal, I have not seen a 3800 do this before and wondering if anyone out there has, It had this problem before any oil leak repairs were made. Thanks Gu... |
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| 2002 Buick Rendezvous CXL 3.4L Differential VIN: 3G5DBO3EX2 Has anyone converted awd to fwd on these buicks |
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| 2001 Cadillac DeVille DTS 4.6L Relay VIN: 1G6KF5791U Ok Guys the customer had the car towed in Because it would not start. He attempted jis own diagnosis during the course of which he found the relay under the back seat to be warm to the touch the relay is marked "cigar" Long story short The Original problem was... |
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| 1986 Chevrolet Corvette 5.7L No Start, No injector pulse VIN: 1G1YY0783G Hello i am having a great deal of trouble with this car. This is a car that sits in a guys collection they get it out every so often in the summer and drive it. Well sometimes it wont start they have been having this trouble for a few years It intermittently n... |
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| 1991 Chevrolet K2500 Cheyenne 7.4L Hesitation, Surge, MIL Lamp on VIN: 2GCGK29N0M This truck is kicking by butt it started out that it bucked badly on light acceleration found faulty rotor bucking is corrected but on wot the pickup just boggs but if you let up it goes fine it will never die out or get worse but no power at wot also truck wi... Trouble codes: 43 (Esc) |
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| 1997 Chevrolet S10 4.3L Excessive Emissions, Poor Idle Quality, Stall, Misfire, Poor Fuel Economy VIN: 1GCDT19XXV we have a 97 s10 here with a 4.3 vin x motor. 4 months ago i did plugs wires cap and rotor. the truck has a bad misfire at idle and almost is undrivable it stalls all the time. i checked codes and had a p0300 and a p0337 for crank sensor so i changed the crank... Trouble codes: P0300 |
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| 1999 Chevrolet Tahoe 5.7L Cooling Systems VIN: 3GNEK18R1X Customer brought truck in due to low engine temp and heater blowing cool. We scanned ect and found engine running at 189-194 a little low. Customer has installed 3 t-stats. I installed a factory stat. Still only gets up to about 189-194. Fan felt like it was p... |
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| 2000 Chevrolet Silverado 2500 LT 6.0L tires VIN: 1GCGC29U1Y This truck has some unusual rear tire wear. Both rear tires are showing a feathered edge wear around the circumference of the tire, the wear goes across the entire width of the tire with the feathered edge towards the rear of the vehicle. This wear pattern sho... |
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| 2001 Chevrolet Silverado 2500 HD 6.0L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCHK29U81 Current problem is missfire cylinder # 1&5 and 4&8 at hwy speeds between 80km-100km under load. Fuel pressure is 60 p.s.i. Switched coils and still had the same cylinders missfire. Trouble codes: P0300 (Random missfire cyl 15 and 48) |
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| 2006 Chevrolet Impala LT 3.5L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 2G1WT58K26 Customer brought vehicle in to us with the complaint that he would have to feather the gas in the morning to get to go and then after it warmed up it seemed good the rest of the day. We have changed crank and cam sensors no change! we have done all the testing... Trouble codes: P0336, P0335 |
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| 2002 GMC Yukon Denali 6.0L tcc VIN: 1GKFK66U02 vehicle was at the dealership and was told it needed a transmission. after test driving vehicle, felt tcc chuggle at 45 mph. tech 2 shows slip speed doesnt increase more than 50 rpms. tcc solonoid running at 37% at that time. used trans special functions on te... |
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| 2003 Pontiac Bonneville SLE 3.8L Tranny VIN: 1G2HY54K13 I have this 03 Bonniville with a 4T65 tranny and it makes a whining noise that gets worse as the line pressure raises the noise goes away when in park or netral. I can pressurize at a dead stop and it will whine. I pulled the trans out thinking it was the need... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1975 Buick LeSabre Custom 5.7L windows, alt, blower motor VIN: 4P67J5X151 I finally found a switch that is screwed into the back of the left cylinder head. it controls the blower fan ,when the wires are connected together the fan runs. the switch connector had melted and the power wire was loose inside the connector and totally out ... |
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| 1999 Buick LeSabre Custom 3.8L Pcm VIN: 1G4HP52K0X thanks guys for the help. all powers and grounds were good as noted. pin 16 at dlc is the power pin. i knew that was good because my scan tool powered up, but i checked it anyway. it was good. the purple wire readings were not right so i bypassed the wiri... |
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| 2002 Chevrolet Express 2500 6.5L Surge VIN: 1GCGG25F82 THIS VEHICLE IS FIXED. I FOUND THE FRAME MOUNTED LIFT PUMP WAS NOT OPPERATING.THIS FIXED THE SURGE AND THE VEHICLE HAD MUCH MORE POWER. THE CUSTOMER STATED THAT THIS TRUCK FELT LIKE IT WOULD SHUT OFF BRIEFLY THEN TURN BACK ON. HE SAID IT ONLY SEEMED LIKE A COU... Trouble codes: N0NE. |
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| 2003 Chevrolet Trailblazer LT 4.2L Crankcase VIN: 1GNES16S63 I'm in the process of up loading pictures of what I've found now. I'll figure out how to reference them i'm sure. the block has been mig welded after being heated by a very efficient welder in the next town over. The pictures tell the story better than I could... |
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| 2005 Chevrolet Aveo LS 1.6L Poor Idle Quality, Stall, MIL Lamp on VIN: KL1TG52605 Thanks everyone. Replacing the rear O2 and doing the idle relearn cured it. Trouble codes: P0140 (rear O2). |
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| 2005 Chevrolet Express 2500 4.8L oil pressure VIN: 1GCGG25V65 Customer called me today and said his truck is fixed. I received some good replies on this one. We decided to pull the pan and look at the pick up o-ring. It was flat and hard as a rock. The o-ring may have even been split, but it was so hard it may have just ... |
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| 2000 Pontiac Grand Am GT 3.4L Hesitation, Cuts out, Stall VIN: 4G34HR5573 After rechecking all my powers and grounds I went ahead and replaced the cam sensor. It.s been a couple weeks and the problem has not occured again. I will call it repaired at this time. Thanks to the 4 that offered help. Trouble codes: P0341. |
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| 2000 Pontiac Bonneville SE 3.8L No Start, Stall VIN: 1G2HX54K3Y First of all thank you for the help. After 2 days of driving the vehicle and letting it idle, i finally got it to act up this morning long enough to figure it out. It would normally just die. Not sputter out or anything just shut off. this morning it chugged f... |
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