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Prev Professional Automotive Repair Technical Discussions for June 21, 2011
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1998 Chevrolet Monte Carlo LS 3.1L fuel gauge VIN: 2G1WW12MOW
I have this problem figured down to either the wire coming from the pcm or the cluster its self is bad. I have replaced the cluster with a junk yard one, but thats not to say it isnt bad. Can anyone tell me what color and wire or wires are that I should be loo...
1999 Chevrolet C1500 Suburban LS 5.7L Misfire VIN: 3GNFK16TR6
Been working on this one for awhile. Came in fouling the #2 cylinder plug. Happened just about immediately after cleaning. Seem to be fouled with coolant. We removed and replace the intake manifold gasket thinking that it was bad. Now the plug is not fouling b... Trouble codes: P0174 (System too lean bank 2)
2003 Chevrolet Tahoe LT 5.3L mode door operation VIN: 1GNEK13T53
good morning to all!!! i have a good one for all the chevy tech out there. this 03 tahoe came in with the complaint that air only blows from the defrost, appon inspection i found this to be true however it will switch to face/vent for about 30 seconds then mov...
2005 Chevrolet Malibu LS 3.5L Monitors VIN: 1G1ZT54805
Please read carfully,customer brought in the car because it was not ready for monitors. We were told the car went for a swim,how bad i don't know. The customer had a new ECM installed for the monitors not ready.We get the car and drive it we get the egr and o2...
2005 Chevrolet Silverado 3500 6.6L No Start, Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1GCHK33285
Replaced all these repair history items last year and prob went away for almost a year! Last time code p0642 would store after long runs when towing and very hot (great time for a failure) vehicle would store code and immediately stall. Sometimes would restart... Trouble codes: P0642 (5v reference signal 1 low)
2006 Chevrolet Uplander 3.5L rear of car VIN: 1GNDV23166
Hello fellow techs. This uplander is the only on we see. It has a loud clunk from the rear of the vehicle, can't pick off which side. I have looked for rust residue around bushings and such, found none. We have bounced on the back of this thing with both feet,...
1999 GMC Yukon Denali 5.7L Poor Idle Quality, Misfire VIN: 1GKEK13R6X
Ok, i have beat my head off the wall long enough, here goes. I have a 99 Yukon with Vin R 5.7L. It came in with intake gaskets leaking into crankcase; replaced with steel fel-pro set and set cam retard to 0 degrees, trucj ran like a champ. That was on thursday... Trouble codes: P0300 (Random misfire)
2003 GMC Envoy SLE 4.2L Hesitation, Stall, MIL Lamp on, Runs lean VIN: IGKDT13S53
This vehicle has no amss airflow - it calculates this figure. Calculations are off. At wide open throttle rpms won't go over 4000 and this only after warmed up. At 4000 rpm wot, airflow is calculated at 40 grams per second. Should be more like a hundred +. How... Trouble codes: P0171 (Lean all banks)
1997 Pontiac Grand Prix GTP 3.8L Hesitation VIN: 1G2WP5215V
Hey Y'all! This is more of a 'second opinion' post. The customer is complaining of stuttering/hesitation during accel and while crusing. Only code set is for the EGR pintle position. On test drive, it took a bit, but I did notice a 'stutter' on accel and whene... Trouble codes: P1406 (EGR Pintle valve position circuit)
2005 Pontiac Bonneville SLE 3.8L instrument cluster,hvac VIN: 1G2HY54K55
This 2005 Bonni instrument cluster and hvac display will both sweep and reset and the dinger will sound, It will not act up unless you are moving, I disconnected the VSS and will not act up, I scoped the VSS and the signal appears perfect and speedo works smoo...
2006 Pontiac G6 GTP 3.9L Vvt VIN: 1G2ZM17116
CEL comes on, DTC P0011 is set, variable valve timing over advanced. Just wondering what to look for before I open this up. Anyone see many problems with the actuators? Anything to watch for with timing chain, other than for obvious wear? There doesn't appear ...

Fixes & Summaries for GM
Fix/Summary Answers
1991 Buick Park Avenue 3.8L Caliper / Rotor VIN: 1G4CW53LXM
Thanks for all the replies. Almost all of you said to replace the brake hose. I tried to save them $ and only reolaced the one side, but then the other side started sticking. Replaced the second side and all's well now. I try not to be the type that overlo...
2001 Chevrolet Venture LS 3.4L Cooling Systems VIN: 1GNDX03E41
Thank you so much for all your help,it is truely a blessing to no there are still people who are willing to take the time to help someone in need.It was the oil cooler behind the oil filter.Again thank you!
2002 Chevrolet Venture 3.4L No Start VIN: 1GNDX03L02
Thanks all for your time and ideas It was the crank sensor. The Verus scanner has three different tests for 7x sensor. The first one was AC voltage check if over 100mv sensor OK. Not so. The original sensor showed 445mv and the replacement about the same. Resi... Trouble codes: P1189 (Oil Pressure Circuit).
2002 Chevrolet Impala 3.8L Over heating
Thank you everyone for your advise I think i found the problem loose connection at the bcm I completly removed the bcm to check the circuit board reinstalled the bcm connected the three connectors and everything works now. The cooling fan turn on exalctly whe...
2003 Chevrolet S10 4.3L Poor Idle Quality, Cuts out, Stall VIN: 0123857013
Thanks for all responses it was the crank sensor causing the irregular idle stalling replaced with new sensor been a couple of weeks all is good Trouble codes: P0101.
2003 Chevrolet Impala 3.4L trunk open light VIN: 2G1WF52E53
1997 GMC K1500 Sierra SLE 6.5L Surge, MIL Lamp on VIN: 1GTGK29F0V
Thanks guys, I'm calling this fixed. After doing the offset realern even though the numbers were wrong the truck runs great. I'm hearing that the truck has never run better and the fuel mileage has increased significantly. Thanks again for your help. Trouble codes: P1218, P1216.
2002 Oldsmobile Bravada 4.2L front differential VIN: 1GHDT13502
Hi, I wish to thank those who took the time to reply. The vehicle will be having the diff. removed and gone through so that it is a one time only repair. I figured those of you that advised pulling and refreshing were correct so that is what we are going to do...
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