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Professional Automotive Repair Technical Discussions for February 9, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1992 Buick LeSabre Custom 3.8L Hard to start when c VIN: 1G4HP53L5N Car will not start when outside temperature is below 20 degrees. It almost seems as if car is flooding out. Temp sensor is reading normal. After car sits inside for awhile it will start. I have taken ECM out and put in freezer.I have taken Ign module and coil ... |
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| 1992 Buick Roadmaster 5.7L Hesitation Vehicle came in because of no power. Wouldnt go over 30mph. We rplaced fuel filter, dist cap, rotor and road tested and now it goes up to 74mph max. When accelerating it doesnt have much power. Replace prom with an updated one with no change. Tryed reman compu... |
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| 1992 Buick Roadmaster Limited 5.7L 1-2 shift VIN: 1G4BT5379N Road tested after repair and trans shifted perfectly. Parked car outside for several hours until customer picked up. As soon as she left with it there was no upshift from 1st gear again. Is there an updated governor for this trans? I searched for bulletins and... |
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| 2000 Buick Park Avenue 3.8L Interior VIN: 1G4CW52K8Y I would like a spec. on parstic battery drain for this vehicle.Any and all help is apperiated.Thanks |
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| 2001 Buick Regal LS 3.8L Hesitation, Cuts out, Stall VIN: 2G4WB52KX1 hi everyone. this car will not turn more than about 4300 r.p.m.s we have recalibrated the pcm but we are unable to do the crank re-learn because it needs to see 5100 rpms. the transmission has extened shifts also. when we rev. up the engine it stops at about 4... |
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| 1987 Chevrolet R10 Scottsdale 5.7L Excessive Emissions VIN: 1GCER14K2H Replaced o2 sensor, same problem, no closed loop operation. cut 02 sensor wire at ecm & ck. with vantage. 02 sensor working fine. Ck. voltage at ecm 02 sensor terminal with wire cut & found it is aprox. 1.4-1.5 volts. It should be about .5 volts. Replaced ecm,... Trouble codes: 13 (O2 sensor open short) |
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| 1995 Chevrolet Astro CL 4.3L Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1GNDM19W3S The problem is that it runs rich all the time. When I plug off the pcv valve then my o2 starts reading. Until I do this the mv are 850 or higher. I have tied a new pcv valve also and this did not change anything. Trouble codes: 45 (Rich exhaust) |
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| 1996 Chevrolet Corvette 5.7L Cuts out, Misfire VIN: 1G1YY3254T Hello all, I have a problem here that has haunted us for 5 months. UNder hard accel at 5500 rpm in 4 at 74 mph or 5 gear the vehicle will start dropping cylinders or thats what it feels like. If you let out of throttle and it hard again the problem is gone. It... |
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| 1996 Chevrolet C3500 Cheyenne 7.4L fuel gauge VIN: 1GBKC34J7T Hello Tech's, This truck has two fuel tanks , the sending unit is in the front tank ( there is no fuel sending unit in rear tank ) there is a fuel pump ballance modgual that controlls the about of fuel that is requested from the rear tank depending on the send... |
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| 1996 Chevrolet Corsica 3.1L MIL Lamp on VIN: 1G1LD55MXT i was wondering if anyone has seen any pattern failures on this model for this code...i have one and its stumpin me Trouble codes: 441 (no purge flow) |
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| 1996 Chevrolet C1500 Cheyenne 5.7L No Start VIN: 1GCEC19R0T This vehicle came to Our shop for no start, fuel pressure was 0 PSI, voltage at pump was 12 volts, after we drop tank we found corrosion at pump housing, we recomend to the custonmer to install pump and housing, after we replaced pump we have 65-70 psi pressur... |
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| 1997 Chevrolet Lumina 3.1L Hesitation VIN: 2G1WL52M9V when you are accelerating the car is pulling back or feeling sluggish. and when you deccel and accel again it will do the same thing and then take off real hard and run good i have checked fuel psi 46 and wiring. it has had plugs,wires,and ing module put on. |
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| 1997 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13W5V have replaced distributor, #2 spark plug, swapped in ignition coil and module, replaced fuel filter, checked compression consistant 145 psi, ohmmed plug wires, checked fuel pressure, using tech 2 pulsed injectors, swapped maf sensor, had trans checked OK. Pro... |
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| 1998 Chevrolet Astro 4.3L fuel gauge VIN: 1GCDM19W4W Hello techs. After fuel pump module replacement for pump failure / no start, fuel gauge reads past full mark at all times. Gauge will respond to float arm movement. When float arm is at "empty" position, gauge reads closer to full(but still past full)than when... |
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| 1998 Chevrolet Corvette 5.7L Head light retractor motors VIN: 1G1YY2180K The headlight retractor motors run continuously.Need wiring diagram to check system thouroughly. Thanks Gerard [...] |
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| 2000 Chevrolet K3500 5.7L Fuel Tank Leak VIN: 1GCHK34ROY We are getting vac. in the fuel tank and sucking in the bottom of the fuel tank and causing it to leak. I can not find much information on the venting system. I know it should be a closed system. I unhooked the tank hose off of the canister and installed a vac... |
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| 1995 GMC Jimmy SL 4.3L No Start VIN: 1GKDT13W7S Hello Group, Thanks to all who take the time to read this and reply in advance. I first recieved this Jimmy as a no start condition after the fuel pump and ignition switch had been replaced. After first inspection I found that the vehicle had 62 psi fuel pre... |
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| 1998 Oldsmobile Silhouette Premiere 3.4L abs/traction control VIN: 1GHDX03E2W towed in, ABS/TCS/brake warning lamp on., customer did not want to drive, thought brakes felt "funny".customer did note the first occurance of light was on highway trip about a month prior to bringing to us with light on solid, but that time it was only during... |
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| 2000 Oldsmobile Intrigue GX 3.5L Engine VIN: 1G3WH52H6Y Car dies after start up with-in a five minute period. Will restart immediately, with no problems. Only dies at idle never going down road. No codes and fuel pressure is with-in specs. No problem with fuel pressure regulator and tried new crank sensor and it st... |
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| 1994 Pontiac Firebird 3.4L ABS System VIN: 2G2FS22SXR Hi Techs! This one is kind of stumping me, though I haven't had a chance to dig into it too far. Was hoping I could get some pointers in the right directions since this problem and type is kind of unusual to me. Here are my known symptoms thus far: 1) ABS ino... |
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| 1995 Pontiac Grand Am SE 3.1L temp gauge VIN: 1G2NE53MXS i need help on this one so i am turning to the best. this car came in with the spedo not working and the temp gauge going instantly to hot when you put it into drive or reverse.after checking for a speed signal to the insterment cluster (and finding one) the i... |
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| 1995 Pontiac Trans Sport 3.1L No Start, Poor Idle Quality, Cuts out, Stall VIN: 1GMDU06DX5 customer had this van towed to the dealers for over heating .Dealears replaced water pump,ecm prom. Then they found out it also needed head gaskets replaced. Customer had it towed to our shop. We replaced the head gaskets.customer said this van had hard starin... Trouble codes: 43 (o2 sensor rich) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1989 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP54C7K i recieved a ton of replies-thankyou-it made us think out of the box-we had already checked the signal from from the wiring from the crank sensor but did not actually physically touch the sensor-sure enough it was ready to fall out of its bracket- replaced sen... |
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| 1993 Cadillac DeVille 4.9L Excessive Emissions VIN: 1G6CD53B5P This car finally has a new sticker. Thanks to Ronald suggesting a Walker cat #15450 that was much beefier than the one that was on it. It cut the nox almost in half but not enough to pass the test. Thanks to Joesph for suggesting grounding the aldl keeping it ... |
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| 1998 Cadillac Seville STS 4.6L No Start, Stall VIN: 1G6KY5494W This vehicle has been gone for a while now and I think it is fixed. We replaced the pressure regulator and it has not messed up since. Sorry for the delay cars has been gone for two weeks now. Did not see a problem with regulator. Trouble codes: P1376. |
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| 1992 Chevrolet Camaro RS 3.1L Surge, Cuts out VIN: 1G1FP23TON thanks to everybody for respond and help. i had to change ecm, sorry for delay for posting this closing thanks again. matt |
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| 1997 Chevrolet C1500 Cheyenne 5.7L Hesitation, Cuts out VIN: 1GCEC19R1V First, thank you to all that replied. My truck had a couple of problems. I solved the fuel pressure problem with a fuel pressure regulator but it did not fix the running problem. So, I got the truck to the shop where I had some diagnostic equipment. I found th... Trouble codes: P0134, P0154. |
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| 1999 Chevrolet K3500 7.4L Misfire, CODES VIN: 1GCHK33J0X thank you for the replies, ended up installing pcm. all o.k. Trouble codes: P0339, P0341. |
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| 1996 GMC K1500 Sierra SL 5.7L No Start, Poor Idle Quality, Misfire VIN: 1GTEK19R0T well, all is well with the chevy. dont know if it was sugar or tang, or somthing else but whatever it was its gone now. cleaned tank, replaced all fuel components and number 4 missfire went away after 30 min test drive. the vaccum gauge started out bouncing fr... Trouble codes: P0300. |
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| 1987 Oldsmobile Toronado Brougham 3.8L Head Lamp Switch VIN: 1G3EZ1134H Hello, I recieved only 3 replies and all of them pointed to possible loose or faulty connections or excessive amp draw. This is thge first time I am working on this vehicle I removed the switch and checked all the connections and grounds. Everything looked goo... |
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| 1994 Oldsmobile Cutlass Supreme 3.1L Cooling Systems VIN: 1G3WH55MOR Thanks for all the replies. The problem found was a bad intake gasket. the leak in the gasket was in a spot that would allow oil to get in to the water but not let water in the oil. |
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| 1995 Oldsmobile Cutlass Supreme SL 3.1L engine VIN: 1G3WH52M7S I received 16 replies.I would like to thank Knick, JC, Todd, [...], Scott, GOodfellow, Jandjcaprice, and Keith. Well, this is one of those spare time jobs. As some of you said to check ... |
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| 1996 Pontiac Sunfire SE 2.2L throw out bearing VIN: 1G2JB124XT unforntunatly the probelm was the clutch slave cylinder which we had just replaced, I found this out by removing the transmission to change to now bad clutch disc and noticed that the clutch slave when dissconnected, the piston would not move freely and took c... |
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| 1996 Saturn SL1 1.9L coolant resivoir VIN: 1G8ZH5280T I appreciate all the repllies about our Saturn problem New cylinder and we're good to go |
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