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Prev Professional Automotive Repair Technical Discussions for August 10, 2009
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Open Help Requests for GM
Help Request Answers
1992 Buick Regal 3.1L head removal VIN: 264WB54TXN
i need to know how the camshafts come off this 2.4 quad 4 ... the mitchell on demand info is scanty. i am trying to replace the head gasket ...thanks for all your help...W
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1995 Buick Riviera 3.8L No Start VIN: 1G4GD2215S
Hello, This Buick is going to drive me insane. I usually work on foreign cars, but this domestic should be simple. Cranks but does not start. No spark, no injector trigger. Will give one quick noid light flash when the key is first turned to crank, then no i...
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1997 Buick Skylark Limited 2.4L head removal VIN: 1G4NJ52T9V
HEY GUYS, I POSTED THIS PREVIOUSLY HOWEVER SOME OF THE INFO WAS WRONG. I HAVE A 2.4 QUAD IN THE SHOP AND I WANT TO REMOVE THE HEAD. MITCHEL ON DEMAND 5 GIVES INFO UP TO A CERTAIN POINT. IT IS VERY CONFUSING... IF ANY OF YOU GUYS HAVE DONE THIS BEFORE , COULD Y...
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2003 Buick Regal LS 3.8L ABS Module VIN: 2G4WB52KX3
Customer complained of his trans interlock not working, abs lt on, traction lt on & service engine soon lt on. I scanned computer to find a U1040- Loss of EBCM comm. Mitchell doesn't even address this. When I scanned ABS system a C1298 showed which my brick sa...
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1995 Chevrolet P30 5.7L Hesitation, Cuts out, Stall VIN: 1GBHP32K0S
I have a Mister Softee Truck that will stall on acceleration without warning. It is an old truck and it seems like everything I test is either marginal or bad. All of the above items were tested and replaced. Now when the truck is running, it runs better than ...
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1996 Chevrolet Cavalier 2.2L Hesitation, MIL Lamp on, IP LIGHTS CAME ON VIN: 3G1JF245TS
Hi,Members I got this 1 with a complaint of no power SES on and most of the I/P Lights become ON (anti theft airbag abs battery and etc,) and the RPM Needle fall down. I tried to check the I/P OUTSIDE FROM THE CAR - and I didn't see any thing that looks like l... Trouble codes: P1601 (pcm serial communication or ecm over temperature), P0440 (evap fault), P1629 (theft fuel enable-incorrect/no signal)
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2002 Chevrolet Venture LS 3.4L antifreeze VIN: 1GNDX13E22
Hey Guys. This Venture is trying to get us. The original complaint (and current symptom) is a severe loss of oil without any visible external leaks. No kidding - this thing pumps 3 qts of oil into the overflow reservoir in less than 2 days time. There is no si...
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2006 Chevrolet Silverado 1500 LS 5.3L No Start VIN: 1GCEK19356
i am stuck here, i have just installed a 5.3 in this truck for the 2nd time, now i have a no start. cranks but has no injector pulse or spark, grounds and ignition power at pcm are good, grounds at coils are good, keep getting this u1041 code after i crank it ... Trouble codes: U1041
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1998 GMC Suburban K2500 7.4L MIL Lamp on VIN: 1GDGK26J4X
This vehicle came in initially with the customer saying the service engine soon light on. Initial inspection found that the MAF had been contaminated by the oil from the K&N air filter in the vehicle. Replaced MAF with a GM unit, cleared the codes and customer... Trouble codes: P0102 (Mass Air Flow Circuit Low Frequency)
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2003 GMC Envoy SLE 4.2L Hesitation, Cuts out, Misfire, will not rev up VIN: 1GKDT13S33
I think I may have two problems. One problem at idle and one at cruise. Vehicle will not rev over 2,500 rpm setting still in neutral. I know it's not right because I can't do a CKP Variation relearn. Vehicle will throttle up to 6,000 rpm while driving. Also wh...
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2002 Oldsmobile Intrigue GL 3.5L Poor Fuel Economy, poor performance VIN: IG3WH52H52
Thanks for reading this problem. Vehicle starts and idles fine, has poor performance (has much difficulty getting up to 100 km/hour), fuel economy poor. 4 codes, cleared codes, went for test drive codes didn't return. Cleaned the MAF and tried unplugging it wi... Trouble codes: 101 (MAF Sensor system performance), 300 (Engine Misfire detected), 404 (EGR open system performance), 420 (CAT. system low effiency)
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2003 Oldsmobile Alero 2.2L Horn VIN: 1G3NL52F77
Found the horn pad in front of the air bag is shorted.Horn is always on.Can these pads be repaired or replaced or must I buy a complete air bag assy as dealer suggests.I prefer not to go to a junk yard as Olds sights show many cars with the same problem.
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2005 Saturn Ion-1 2.2L Surge VIN: 1G8AF52F85
Hi guys, This customer came to my shop for severe surge when cold has he release the clutch. When he brought me the car and after a cool down I positively agreed with him and the complaint. First I hooked the scantool and 2 codes as mentionned were listed as ... Trouble codes: P0300, P0128
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Fixes & Summaries for GM
Fix/Summary Answers
1998 Buick Riviera 3.8L No Start VIN: 1G4GD2213W
Well it is fixed. I printed the 35 replies off saturday and took them home and went through all 35 2 or 3 differant times. James from texas Timothy from Wisconsin and also Mel from Manitoda.The three of them put me on the right path. After doing more pin point... Trouble codes: P0706 (also po705 all are low voltge coodes), P1646 (po122-), P0122, P0403 (p0405-), P0405 (p1122-), P1122 (testing and results).
35
1970 Chevrolet C-10 5.7L brakes binding
WOW LOTS OF REPLIES! 99% SAID MASTER/BOOSTER AND YES POWER BRAKES. ASKED OWNER ABOUT THE POWER BARKES ETC.. HE CONFESSED THAT THIS PROBLEM DIDNT START UNTIL HE SWITCHED FROM NO POWER TO POWER BRAKES! (YOU THINK THATS A CLUE???)AFTER PRYING A LITTLE HE BOUGHT T...
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1985 Chevrolet P30 5.7L No Start VIN: 1GCHP32M7F
thanx for all the good info on this,tach wire was grounding out.repaired accordingly and alls well .thanx again for the help
16
1994 Chevrolet Corvette 5.7L Misfire, tachometer jumps VIN: 1G1YY22P9R
Thanks for everyone's help.A new distributor did fix this problem even the tach issue.Thanks to everyone that replied.
4
1999 Chevrolet K1500 Suburban 5.7L MIL Lamp on VIN: 3GNFK16RXX
THANKS TO ALL FOR YOUR IDEAS REPLACED THE INJECTOR CLEARED CODES AND IS RUNNING GOOD, I WAS ABLE TO SEE THAT THE SPARK PLUG WAS FOULED WITH GAS AFTER A COLD START UP THIS WAS PROOF TO ME THAT IT WAS LEAKING DOWN AFTER SITTING , AGAIN THANKS TO ALL Trouble codes: 303 (miss cyl 3), 420 (inefficeint cat).
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2000 Chevrolet Astro 4.3L Hesitation, Misfire VIN: 1GCDM19W7Y
Thank you to all that replied, we double checked connector to ICM to check for female connection.While doing this we followed harness down to main harness, and found harness worn through from A/C line. Replaced harness and routed away from A/C line. Road teste...
8
2003 Chevrolet Venture LT 3.4L suspension VIN: 1GNDX13E63
Sorry it took so long to reply, but wanted to make sure it was fixed. First retightened lower control arm while in riding hight which previos tech didn't do. Next, retorqued sub frame bolts like many suggested. Rear bolts were loose, not alot but enough to mak...
22
2004 Chevrolet Silverado 2500 6.0L Starting VIN: 1GCHK29U04
I found the pcm was losing ground when the key was turned on there was a broken ground wire on the back right side of the motor thanks for the help
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2004 Chevrolet Suburban 1500 Z71 5.3L Passenger Side HVAC Controller motor VIN: 1GNFK16Z04
Thanks to everyone who replied. I checked the a/c charge, which was within spec, cleaned the wire connector terminals on the advice of a fellow tech, put her back together and everything works fine. Was never able to actually pinpoint the problem, but customer...
6
2003 Other GM motorhome 5.3L evaporator
thanks to all that replied! customer finally returned today. I was about to give up on them. I decided to replace the expansion valve, and I saw the problem a soon as I took the line off of the evaporator. the drier had come apart and clogged up the evaporator...
8
2001 Pontiac Grand Am SE 2.4L Poor Idle Quality VIN: 1G2NE52T81
Customer never returned, I'd like to have Checked the Evap System further for leaks, Still leaned toward A timing Issue. Thanks for all the Responses! Ron [...]
14
2004 Pontiac Grand Prix GT2 3.8L runs hot? VIN: 2G2WS52294
thanks for all that helped it turned out to be a bad fan realy intermitantly going open temp was ok when i was checking it.
7
2002 Saturn L200 2.2L alternator VIN: 1G8JU54F22
p.c.m. was defective. i was pretty sure that was the problem just wanted a second opinion. thanks for the replies, i appreciate it.
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