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Prev Professional Automotive Repair Technical Discussions for October 30, 2007
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Open Help Requests for GM
Help Request Answers
2003 Buick Regal LS 3.8L odometer VIN: 2G4WB55K53
Odometer backlighting is so dim in the daylight you cannot read the PRNDL and the odometer.The headlight rheostat is dimming and brightening but at the brightest setting is is very difficult to read you gear selection.The rest of the cluster lighting is accept...
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2000 Cadillac Catera 3.0L lifters VIN: W06VR54R3Y
Need help with this catera, engine has good oil pressure, but upper end not oiling, all lifters collasped, engine runs but has severe upper end clatter, why would I have oil pressure loss to upper end only, any help appreciated. Thanks...Joe
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1994 Chevrolet K2500 Cheyenne 6.5L MIL Lamp on VIN: 1GCGK29F1R
we instaled this new motor but we keep getting code 88 tdc offset .mechancal timng is correct. we tried to do the reset with tech 2.it goes to 0 than about 10 sec.later it keeps going to -2.02 we move pump again and it stays at -2.02. we need 0 to -.50. the cr... Trouble codes: 88 (tdc off set)
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1998 Chevrolet Express 2500 5.0L steering wheel VIN: 1GCFG25M1W
first i had a code for low voltage for steering wheel sensor and a hard time turning the wheel so we replaced the evo sensor and it seemed to work for two months..van came back later for a hard to turn left problem with no codes ...so we tryed a new sensor ..i...
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2001 Chevrolet Tahoe 5.3L ignition
hey guys, one of my people's personal wagon has an issue on startup. In about seven of ten attempts,the engine just cranks, no start, but on retry,it busts right off. It is a 5.3,and it runs just fine, no dtc's, never fails to start on first retry, but it is k...
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2003 Chevrolet Suburban 1500 LS 5.3L MIL Lamp on, REDUCED ENGINE POWER VIN: 1GNFK16TX3
extremely intermittent problem only happens about once a month or 1500mi. always comes out of reduced power once ignition is cycled. i have wiggled all the wires and can't seem to find any kind of breaks or shorts. several techline calls to identifix had me re... Trouble codes: P2135 (tp sensors 1/2 disagree)
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1994 GMC Sonoma SL 4.3L hydraulic VIN: 1GTCS14Z8R
1994 GMC Sonoma pickup 2WD. 4.3L engine. 4 wheel anti-lock brakes. This vehicle came in with loss of brake pedal. No loss of brake fluid. Brake linings OK. Installed a new master cylinder and brake pedal still sinks to floor after repeated bleeding of ABS EHCU...
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1995 GMC Sonoma SL 2.2L Poor Idle Quality, Misfire VIN: 1GTCS1446S
Truck was brought in for a fuel smell in the rear of engine. Inspection showed #4 injector leaking fuel. Replaced injector and installed new AC plugs and new wires. Engine runs rough at idle. Also has a slight upper engine noise. We removed valvecover and all ... Trouble codes: 22 (tps)
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1996 GMC K3500 Sierra SL 6.5L Glow Plugs
This truck starts very hard due to the terminals of 5 of the glow plugs being rusted off. Attempted to replace glow plugs after soaking with PB blaster for 3 days. Broke the first one off flush with head. Anyone have advice on drilling this out? Possisbly a tr...
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2000 GMC C3500 Sierra SL 6.5L No Start VIN: 1GDH39F7Y1
experiencing a no start condition. no fuel from injection pump rebuilt injection pump last year any help would be appreciated
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2004 GMC Sierra 1500 SLE 5.3L master VIN: 2GTEK19T24
Truck was dropped off customer says:he Lost all Brakes under normal braking on pavment he states that he had hit some strapping on the right front,I inspected the right front no visable damage to brake system brake fluid is full petal feels normal. I took truc...
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1992 Oldsmobile 88 Royale 3.8L Unknown VIN: 1G3HN53L7N
Hello All I feel silly even posting a help request for what should be a simple problem to find. This car is driving me nuts. I have a vibration in the front end between 65-75 MPH. It is quite violent and is not felt in the steering wheel but is felt in the fr...
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1999 Oldsmobile Intrigue GLS 3.5L bogs down VIN: 1G3WX52H2X
HI to all fellow techs I have a weird one here? vehicle checks out on scanner no glitches or abnormal readings of any kind good fuel press. car will start good cold and when you first take off it feels like a stopped up cat. only does it for 1/4 mile then clea... Trouble codes: P0442
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2000 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NF52T3Y
this vehical was towed in from another shop that didnt want to get involved in it.the vehical wont start and it cranks over like it jumped time,chain is broken or no compression.so i started there first i pulled the cover off and lined up the marks everything ...
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2000 Saturn LS1 2.2L odometer and sppedometer VIN: 1G8JU52F3Y
hi i am not very familiar with saturn but have this 2000 ls1 with 3 bcm codes and 3 ecm codes cust. complains of int. no start which i suspect is ckp but my main issue is the cluster speedometer is reading 694,872 miles actual is around 70,000 and trip od. sta...
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2000 Saturn LS2 3.0L No Start, Cuts out, Stall, MIL Lamp on VIN: 1G8JW52R5Y
This one has got me stumped. Originally, customer was driving for an hour or so, in 95 degrees, stopped, and came back out and vehicle wouldn't start. MIL light on. After about 5 minutes, of cooling, vehicle started. Drove around for a few days, then as he pul... Trouble codes: P0727 (Engine Speed Imput Circuit - no signal), P1780 (Park/Neutral Position PNP Switch Circuit)
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Fixes & Summaries for GM
Fix/Summary Answers
1996 Buick Skylark Custom 2.4L MIL Lamp on VIN: IG4NJ2T5TC
Problem was in computer not Evap system,every time cooling fans came on check engine light would come on and stay on.Customer did not want new ECM Trouble codes: 440 (Evap system).
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1997 Chevrolet Express 2500 5.7L Fuel Guage VIN: 1GCGG25R2V
Hi everyone. We received some good ideas for this problem - one was to test the fuel sender, which we did and it tested fine. I used a variable resistor box on the sender wire going to the buffer module and the guage still bounced a little. The customer's vehi...
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2002 Chevrolet Astro LS 4.3L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNEL19X12
CUSTOMER CHOSE NOT TO GO FURTHER WITH THE DIAGNOSIS AND CHOSE TO DRIVE THE VEHICLE WITH A ROUGH IDLE, AND CHECK ENGINE LIGHT ON. THEY INFORMED ME IT CRUISES WITH NO PROBLEMS NOTICED. SOME OF THE REPLIES I HAD, RELATED TO EGR PROBLEMS. HOWEVER, THIS ENGINE DOES... Trouble codes: P0300 (random mis-fire).
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2002 Chevrolet Silverado 2500 HD 6.6L not sure VIN: 1GCHK24172
our customer has not decided if he wants to replace clutch or not at this point. we did take it to another gm dealer who checked the flow rates of the injectors and said they also did a cylinder balance and everything was fine with the injectors.they would no...
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1997 GMC K1500 Sierra SL 5.7L Misfire, MIL Lamp on VIN: 2GTEK19RXV
thanks for all the info . did find intake leak . manager has decided to whole sale car . Trouble codes: P0300.
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2002 GMC Sonoma SLS 4.3L 4wd VIN: 1GTDT13W42
Thanks to all. Dave from Iowa had the answer. The front axle clutch gear teeth were worn on an angle. Replacing the clutch gear and clutch sleeve fixed this one.
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1997 Oldsmobile Achieva S 2.4L No Start VIN: 1G3NL52T7V
First off I whant to thank all of you for your time and input. After rechecking and alot of what the @$&*#'s I had the dealer warrenty their key switch assm and ign switch and car has been fine since. I have started this thing about 200 times and seems to be ... Trouble codes: 1629 (theft deterrent crank signal fault).
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1998 Saturn SL1 1.9L Poor Idle Quality VIN: 1G8ZG5282W
First let me thank all of you for the fast replys, John and Tom both nailed it, it was the coolant sensor and harness that was bad. We removed the sensor and the tip was cracked. I called the saturn dealer and he keeps a bunch of these in stock. We replaced th...
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