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Prev Professional Automotive Repair Technical Discussions for March 18, 2009
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Open Help Requests for GM
Help Request Answers
1998 Cadillac Catera 3.0L Stall VIN: WO6VR52ROW
good afternnon everyone, vehicle start abd runs for aout 45 secs, then stalls and wont restart. try to run for codes no communication with pcm. do have communcation with abs, airbag etc. vehicle sits over nite in shop or outside sit will not start. if u discon...
1999 Cadillac Seville STS 4.6L fuel filling VIN: 1G6KY5491X
I replaced defective sending unit for fuel level. The vehicle will only take like 4 gallons at a time and the pump shuts off.The tank was not dropped in order to service the sending unit. Any suggestions would be helpful.
1996 Chevrolet C2500 Cheyenne 5.7L EFI Routing VIN: 1GCGC24R8T
I have not installed a CFI injector without first removing it and 'remembering'/marking where each injector fit into its respective port. I looked on Alldata, but cannot find a definative picture of how the injectors are routed. Is there a way to determine whi...
1996 Chevrolet Corsica 3.1L MIL Lamp on VIN: 1G1LD55M9T
Thanks ahead of time for any help on this one. This vehical belongs to long time customer. Car came in about 6 months ago with p0141 code for bank 1 sensor 2 heater circuit problem. We did the diagnoistic tests that alldata supplied and replaced o2 sensor with... Trouble codes: P0141
1999 Chevrolet C1500 LS 5.7L Mechanical VIN: 2GBEK19R1W
I'm not a brake man. I generally do electrical work but this one was dropped in my hands while repairing some electrical faults. I know these trucks have a soft pedal but this one is almost to the floor. We adjusted the brakes and did a bleed on the system. It...
1999 Chevrolet Blazer 4.3L Cuts out VIN: 1GNDT13WXX
drives fine and acceleration is good, customer says it will act like fuel running out after long drive.(100+miles) Then will start to sputter, they shut it off for about 20 min. and starts up and goes till it happens again, and again. This is difficult to sa...
2004 Chevrolet Silverado 2500 HD 6.6L Surge VIN: 1GCHK23284
ok duramax guys, have a 2004 chevy k2500hd with 6.6l diesel. customer says that vehicle will suddenly lerch foreward while idleing in gear with foot an brake pedal. states vehicle has done this several times over the past few months. no service engine light o...
2004 Chevrolet Cavalier 2.2L gauges VIN: 1G1JC12F04
both speedo and tach register 6000 rpm key on engine off or running speedo 40-60 mph anytime jumps occasionally all other gauges ok temp,charging fuel level
1990 Oldsmobile Delta 88 Royale 3.8L No Start, Cuts out VIN: 1G3HN53C8L
Hi all this one has me stumped.It started when i changed a bad harmonic balancer,2 weeks later,first crank sensor,car would go for an hour or two then would die. now it wont run more than 45 min.let it cool off over night it starts up. checked cam magnets thie...
1997 Oldsmobile Aurora 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3GR62C4V
This car is one of those that doesn't want to leave. Plugs and wires were replaced for arcing out, that repaired the miss under load, but now I had lean codes. That turned out to be the plenum gaskets, but that's where the problem started. The first set of gas... Trouble codes: P0300
1998 Pontiac Grand Prix GTP 3.8L Cuts out VIN: 1G2WP5215W
have 3.8 supercharged grand prix with 2-channel fuel pump cicruit. originally car would start and run for a couple of seconds and then die. you can hear fuel pump shut off, then car dies shortly there after. bypassed the resistor with paper clip and car starte...
2001 Pontiac Bonneville SE 3.8L steering gear VIN: 1G2HX54K12
Hi Everyone: I have this Bonneville when driving on road and go to turn left like on a curve on the highway the vehicle will feel like you just jerked the steering hard left.This happens at about 1/4 of the way through rotation on curve and it is a sudden pull...
2002 Pontiac Sunfire SE 2.2L Raer defogger VIN: 1G2JB12442
The rear fogger on this car is not working. I have checked all the wiring, switch, etc. I do not have battery voltage at the A terminal (orange wire, circuit 1340)at the switch connector. I have batt voltage at the fuse and out of the fuse box. I have a Mitche...
2002 Pontiac Grand Am SE 3.4L No Start VIN: 1G2NF12E22
Hello iatn users! this is a weird one ive came across. i have a 2002 grand am with the 3.4. the vehicle has 50 psi of fuel pressure, spark,but does not have injector pulse during cranking. we sprayed brake clean to try and get it running and it started emmidea...
2003 Pontiac Sunfire SE 2.2L guages VIN: 3G2JB12F13
the fuel guage ,speedo, tachometer ,temp guage only thing that works is the service engine soon lite and the security lite lock,but it goes out , nothing else works at all , car runs fine just no instrument panel . have disconected battery and connected but st...

Fixes & Summaries for GM
Fix/Summary Answers
2004 Cadillac CTS 3.6L Engine VIN: 1G6DM57774
Sorry for the delay, had good responses. General consensus and research leads to the most likely probability of bent valves. Informed customer and some investigating with GM as far as parts. A GM rebuild or new engine is not available. With the chain proble...
1992 Chevrolet Cavalier RS 2.2L Engine VIN: 1G1JC5446N
Thanks for all the responses, tried them all. Fuel press good, leak down test good, borrowed Snap on scanner. It communicated, no codes, flashed 12 on MIL 3 times. Checked grounds good, found bare hot wire going into fuse link at starter, but no blown fuse lin...
1998 Chevrolet P35 5.7L No Start, Poor Idle Quality, Surge, Cuts out VIN: 1G347BRR4P
1999 Chevrolet Venture 3.4L over heating VIN: 1GN0717M0X
well guys thanks for all the replies. yes,it was the head gaskets. i really didn't want to hear that but, had to get customer van back to them. they have owned it about 5 years and had no engine work done but, this had been patched in the past. onnce again tha...
2000 Chevrolet Tahoe 5.7L engine
First off i want to thank everyone who took the time to try to help. The vibration turned out to be the convertor go figure!seems they have had a run of bad remans lately. This took awhile to close because it was my own truck i am sure everyone who does this f...
2000 Chevrolet Blazer LS 4.3L No Start VIN: 1GNDT13W6Y
Every one was close it was the passlock sensor that failed replaced and did the relearn procedure 2 freakin times before it caught. Truck Started and ran good for three days then it wouldn't start and the light was flashing again thought oh crap another sensor...
2001 Chevrolet Silverado 3500 8.1L shift solenoid VIN: 1GCJK33G91
Well it seems that I must have fixed the vehicle because I haven't heard back from them yet. I added the 2 qts of fluid and cleared the code that Steve, Kelly and Ross suggested. I also checked the prndl switch that Ed and several others suggested and it did h...
2003 Chevrolet Malibu 3.1L Engine VIN: 1G1ND52J43
Hey Guy's As in my request, I stated that I had drained the oil and cranked engine to bleed-off lifters it just took a while longer than I thought it should (cranked 15 seconds let sit 2 min.) and repeated about 10 or so times, compression came back, re-filled...
2004 Chevrolet Silverado 1500 5.3L speedometer VIN: 1GCEK14T74
thank you to all of you guys that replied the response i got was over whelming.the majority of responses stated that dealers had extended the warranty to 70,000 but this one was over 90,000,so that ruled it out.i have priced the head from advanced auto electro...
2000 Pontiac Grand Am SE 2.4L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G2NF52T1Y
Replaced fuel pump car responds alot faster, Customer doesnt want to fix bad cat. Vehicle runs better than before but it will need a new cat (Explained to customer that the cat will only get worse to the point were it wont start). Still didnt want to replace c... Trouble codes: P0300 (Random cylinder misfire.), P1171 (Lean condition on acceleration.).
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