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Prev Professional Automotive Repair Technical Discussions for April 27, 2007
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Open Help Requests for GM
Help Request Answers
1992 Buick Park Avenue Ultra 3.8L Cuts out, Stall, MIL Lamp on VIN: 1G4CU5317N
Hi iatn Buddy's, could use some advice on this one. customer came in with a complaint of stalling, I couldn't get the vehical to act up, hooked up my brick and got a tps code 22, it passed the sweep test but I replaced it anyhow and cleaned the throttle and ma... Trouble codes: 22 (tps sensor circuit low), 67 (cruise controll switch bad)
1995 Buick Riviera 3.8L alternator VIN: 1G4GD2210S
no battery voltage on terminal l koeo low charging voltage full field alt everything ok
1996 Buick LeSabre Custom 3.8L Starting VIN: 1G4HR52KVH
If the electric doesnt go out again, third try. Hello everyone, this LeSabre has the security light flashing. The owner went into the store and came out and the car would not turn over. I read the archives and learned some things about this system. This is onl...
2003 Buick Century Custom 3.1L rocker arm threads VIN: 2G4WS52J23
replaced intake manifold gasket -1 week later the #2 cyl rocker threads pulled (torqued to specs-14 ft lb + 30%) 2 weeks later the cat converters were plugged. customer took to dealer after the cat converters were replaced the car only went 1/2 mile when engin...
1994 Chevrolet K1500 5.7L No Start, Stall VIN: 2GTEK19K8R
initial startup of vehicle is ok, and going down the road after the repairs performed is ok. after driving for 20 to 30 minutes, engine stalls and wont relight unless fuel is manually poured down the tbi unit. truck then starts up and runs fine until it cuts o...
1995 Chevrolet Monte Carlo LS 3.1L Stall, MIL Lamp on VIN: 2Q1WW12M5S
The car wil start and stall sometimes, especially after a hot soak. Her original complaint was stalling after running in to the store, and a check engine light. I got the car to do this 3 times - once per visit. I have not gotten the car to set the Code 51, bu... Trouble codes: 51 (Faulty PROM/MEM-CAL)
1996 Chevrolet S10 2.2L comp VIN: 1GCCS1440T
This is my own vehicle, have owned it two years. A/C works great, have never touched it. I drive short trips in town. The comp does not cycle. The other day it was 75 degrees ambient, on max high fan, A/C vent temp was 35 degrees, then I put on max low fan, it...
1998 Chevrolet K3500 Cheyenne 6.5L Stall VIN: 1GCHK39F5S
This vehicle will die suddenly ,hot , while driving and then be able to start right back up. during testing it doesnt seem to have any problems. when it first came in it had trans codes and customer had transmission rebuilt. This truck is becoming a problem bu...
1999 Chevrolet Silverado 1500 5.3L Coolant Loss VIN: 2GCEK19TXX
I have a 5.3 chevy that is getting coolant in the oil. it hase a valley cover so I don't belive the intake gasket is the problem. I have dyed the coolant and estemated to the customer pulling the valve covers and if that dosn't show anything to pull the valley...
1999 Chevrolet Tahoe LS 5.7L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 1GNEK13R5X
Performed complete tune up at 73,000 to solve engine miss, replace plugs, wires, cap, rotor, filters etc..., problem still exists and according to customer getting worse, have since had a MotorVac injection system cleaning done, no change, now at 81,000 we see... Trouble codes: P0300 (random misfire), P0305 (misfire 5), P0307 (misfire 7)
2001 Chevrolet Venture LS 3.4L Hesitation, Stall
hello all, this venture came back 1k after i replaced an intake gasket. the problem is the engine cuts out,stalls after a hot loses power smoothly under accel and then dies. the alt. lite comes on towards the end otherwise no dash lites.fuel pressure o...
2003 Chevrolet S10 4.3L MIL Lamp on VIN: 1GCDT19X03
Got a question about how exactly the vent valve is supposed to act when activated. When I command it on(closed) with my scan tool it does not activate until I command it back off again and then it turns on for about 10 seconds. After the 10 seconds passes it s... Trouble codes: P0446 (evap vent valve control circuit)
2004 Chevrolet Silverado 1500 5.3L air outlets VIN: 2GCEC19T24
this vehicle was brought to our shop with the a/c (dual system) blowing hot/then cold only on the passenger side. we have scanned the ecm and it shows no codes. we have found no tsb's, it blows cold always on the drivers side, but hot/cold on pass side, thanks...
1995 Geo Tracker LSi 1.6L Poor Idle Quality VIN: 2CNBJ1867S
not idling, very rough. cleaned throttle body, now idles better but still rough and has low vacuum, have checked compresion, timing, and timing belt, done a valve job. Any help would be appreciated. please let me know as soon as possible. thank you!
1997 Geo Metro LSi 1.3L No Start, Stall VIN: 2C1MR2291V
vehicle came in on hook with no start costomer tried to diagnose problem by playing parts changer. Changed distributor, PCM, fuel pump with known good units. Diagnoses on my part found faulty injector replaced injector, now vehicle starts and runs for three se...
2001 GMC Sonoma SL 2.2L Poor Idle Quality, Surge, MIL Lamp on VIN: 1GTCS14591
vehicles has new map sensor because the voltage was going to 4.5 volts at idle when it should be between 1-2 volts at idle. after driving it under load it suddenly bogs out. thats when the crazy map reading comes in. i have keyed the car off after the poor dri... Trouble codes: P0122
1995 Pontiac Bonneville SE 3.8L Warning lights VIN: 1G2HX52K1S
Hey Gang, I'm hoping some of you may have run into a similar scenario. The vehicle has had an intermittent history of misfires, the shop owner replaced the ECM 1st and vehicle was good for a month or so,it came back in running rough and then he replaced the pr...
2002 Pontiac Sunfire SE 2.2L MIL Lamp on VIN: 1G2JS14432
I have a 2002 Pontiac Sunfire, the vehicle intermittently turns on the MIL. Code P0122 TPS Low Voltage, the vehicle has had a TPS sensor replaced, TPS sensor connector replaced, and PCM replaced. all the wiring has been checked and ohms out good, we have wiggl... Trouble codes: P0122 (p0705-), P0705
2003 Pontiac Sunfire SE 2.2L Starting VIN: 3G2JB12F23
This car will not start.The security light flashes continually and will not relearn.I even unhooked the battery and tryed the relearn.After the first 10 min cycle the light will just keep flashing no matter how long i leave it.Could not find any codes as allda...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac Seville SLS 4.6L instrument lights VIN: 1G6KS52Y5V
as everyone who replied sugested I checked all the inputs and output signal into the cluster, everything was up to specs. Unfortunatly the customer did not wanted to wait for me to try anything else, so he took the vehicle to the dealer in hopes that they mayb...
1998 Cadillac Seville SLS 4.6L engine VIN: 1G6KS54Y6W
Thanks again for the overwhelming response on this problem! This is obviously a common problem that I was not aware of, being unfamiliar w/Cadillac. Many of you alerted me to a common problem with these engines pulling the head bolt threads and creating the ex...
1993 Chevrolet Corvette 5.7L starter VIN: 1G1YY33P9P
Thanks to all who took the time to read and reply. Excellent response and overwhelming majority of hits. It turns out it was the ignition switch and key. We tried a new key and it actually turned over for about 2 seconds then failed again. I did not find any b...
2000 Chevrolet Camaro 3.8L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 2G1FP22K6Y
after rechecking everything i replaced the tac module and iit appears to be fixed. the reason i say appears is it was intermitant so i gave it some time to be as sure as i could thanks again for your help. Trouble codes: P518.
2003 Chevrolet Monte Carlo LS 3.4L No Start VIN: 2G1WW12E03
Well gents and ladies I haven't had the problem issues stated to rear their ugly head since I posted this one. The vehicle has been running fine without incident. The owner(one of my co-workers) came to the conclusion that she's going to trade up to another ve...
2004 Chevrolet Silverado 2500 HD 6.6L speedo VIN: 1GCHK23294
customer will bring truck back after crops in ground, thanks to bill & william for info, about chaffing harness & check out, will let know if cutomer brings back, this site is great!!!
2005 Chevrolet Silverado 3500 6.6L Hesitation, Cuts out VIN: GDE4E3205F
we looked over the replies and decided to change the frp sensor and the fuel pressure regulator we then test drove it 80 miles with no problems on the highway turned back to the custumer and he had problams within a half aday on dirt roads i talked to the chev... Trouble codes: 1093 (fuel pressure low on power enrich).
1988 Oldsmobile Cutlass Calais 2.3L Surge, Cuts out, Stall, MIL Lamp on VIN: 165DGH76J8
im gonna open another reqest this is a never ending . Trouble codes: 23 (air temp sensor), 43 (est), 53 (over voltage).
2000 Oldsmobile Bravada 4.3L Mechanical VIN: 1GHDT13W6Y
Thanks to all who replied, I have replaced the encoder motor and customer has not been back with any concerns.
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