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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 24, 2008
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Open Help Requests for GM
Help Request Answers
2000 Buick LeSabre Custom 3.8L fuel gauge,radio,abs lite VIN: 1G4HP54K7Y
hello all. vehicle came in with,no radio,no fuel gauge,abs lite on,security lite on ,check engine lite on,no power door locks on any door,radio and fuel gauge come and go sometime turn on hazard lites radio returns but no always.checked charging system,servera...
1997 Cadillac Catera 3.0L Cooling System VIN: W06VR54R0V
I need help guys on this one. Customer brought this caddy in which complaint was overheating. Well come to find out this is one crappy caddy. Now heres my question I can't find any info as to what is the cause all these cars to blow head gaskets? I have read t...
1986 Chevrolet Corvette 5.7L Poor Idle Quality, Hesitation, Cuts out VIN: 1G1YY0782G
Customer came in to the shop in august with a rough idle and seem to be slight misfire and said that he had recently had the plugs changed.I pulled the plugs and noticed that they looked like they had ash deposits on them and were some what worn especially on ...
1990 Chevrolet Corvette 5.7L pcm VIN: 1G1YY2383L
I have a 1990 Corvette. I have found that for sure the PROM is bad inside the PCM. It has the alpha numerical code ANHT 4298. The GM Part number is [...]. I was wondering if anyone had ANY idea where I might get one of these. GM has discontuined them and ha...
1995 Chevrolet S10 2.2L head gasket VIN: 1GCCS1448S
A coworker of my sister's has this S-10, another shop replaced the leaking radiator, then found that the head gasket is leaking coolant on the LH side. I think it was overheated. I took a quick look at the truck, I recognized it, long story short, they purchas...
2000 Chevrolet Prizm 1.8L rear brakes VIN: 1SK5280YZ4
have a knocking/ticking noise coming from rear when brakes are applied. have tried multiple things to try and cure this with no luck. noise is worse when e-brake applied at a slow speed. anyone ever had this problem?
2003 Chevrolet Silverado 2500 HD 6.6L erratic shifts VIN: 1GCHK24173
Customer brought vehicle in for trans. service and made no mention of any issues,Transmission had torque converter lining in pan, so service was not performed,customer agreed and we rebuilt transmission. Customer returned after rebuild stating the vehicle inte...
2003 Chevrolet Silverado 3500 6.6L door chime VIN: 1GBJC34103
At some point in the vehicle history the battery went dead and was changed. After that the door chime which comes through the radio speakers is LOUD to the point of being RUDE. Ive tried to access it through body module, radio module and even chime module with...
2004 Chevrolet Tahoe LS 5.3L Electronic VIN: 1GNEK13Z74
this is a persistant intermittant problem. vehicle has never exhibited the symptom while in our hands. however, when customer brings it back there are always dtc's. originally came in with a c0290 and found tsb 05-05-25-003b to replace yaw rate sensor with up...
2004 Chevrolet Venture LS 3.4L starter VIN: 1GNDX03E04
All GM tecs This van is a no start , installed scan tool and found no codes relating to this problem. Tested pcm/crank fuse for key power checked out tested starter relay for powers and ground. Found no ground from pcm.Checked pcm/passkey/cluster fuse OK for ...
2005 Chevrolet Suburban 1500 LT 5.3L door lock VIN: 3GNEC16Z95
Group, I have a intermittent problem on my mothers suburban.The problem is the rear hatch is not opening by the handle or the lock. I can hear no clicking in the door when one of my techs pushes the lock switch. I have verified this several times but when I ge...
1999 GMC Savana 3500 5.7L 1-2 solenoid, 2-3 solenoid VIN: 1GDHG31R0X
Wasn't sure what category to post this one in. I have several codes in this truck and am curious if they may be the result of the same problem. Troubles are: No dome light, pulled fuse and had power at both sides of fuse in fuse box. Odometer and PRNDL only il...
1992 Pontiac Bonneville SE 3.8L Stall VIN: 1G2HX3L3N1
hey fellow techs i've been working on this bonne on and off all week.We replaced fuel pump because i thought it was as simple as that because the pump wouldn't max press.I have checked iac it would go to 0 in park or nuetral in drive it will show 32 counts see...
1999 Pontiac Montana 3.4L Misfire, MIL Lamp on VIN: 1GMDX03EXX
Van has code p0300, with scan tool number 5 cyl is the one missing. Miss is intermittant and mostly at idle. Noid light and spark tester never misses a beat on #5 cylinder, but with everything hooked up and engine running #5 has intermittant miss, engine warm ... Trouble codes: P0300

Fixes & Summaries for GM
Fix/Summary Answers
2005 Cadillac STS 4.6L MIL Lamp on VIN: 1G6DC67A95
We replaced the oil pressure sensor and the problem has gone away. I am not confident this was the problem but it is cured for now. There were no other codes stored so if the oil pressure codes normally dont activate the CEL i dont know what was turning it on.... Trouble codes: P0522 (Oil pressure circuit low voltage), P0521 (Engine oil pressure sensor range/performance).
1988 Chevrolet K1500 Cheyenne 5.7L Cuts out VIN: 1GCDK14K2J
Most said to replace the distributor, some said the ecu, one said ect. I replaced the ecm with no fix and replaced the dist. with no fix. Once in awhile I just can't git er done! Thanks folks
1994 Chevrolet Camaro 3.4L No Start, slow start VIN: 2G1FP22S0R
Thanks to all of those that replied to our posting. Sorry it took so long to reply. The car is finally fix. There were apparently two problems with this car. The first was fixed by the timing chain being replaced. When we pulled it down the was quite a bit of ... Trouble codes: 36 (24X Signal Circuit Error).
1999 Chevrolet Corvette 5.7L MIL Lamp on VIN: 1G1YY22G1X
Thanks to all who replied. The problem ended up being the knock sensor I replaced both knock sensors and the knock sensor harness along with the valley pan was leaking around the sensors. What I did to make sure it was the knock sensors before removing the int... Trouble codes: P0327.
2002 Chevrolet Cavalier LS 2.2L Starting VIN: 1G1JF52482
Well it turned out to be the ignition switch. i had my buddy diagnose it. all he did was a couple of drive cycles untill the actual bcm code came up. and that was for the ignition. thank u very much everyone for your help.
2002 GMC Envoy SLE 4.2L Squeals VIN: 1GKDT13S62
Thanks everyone for all the suggestions. The noise turned out to be the right front axle seal on the differential. When we got the vehicle back and pulled the shaft, most of the outter lip of the seal was melted to the end of the axle. We got the updated seal ...
2005 GMC Sierra 2500 HD SLE 6.6L allison trans VIN: 1GTHK23275
Thanks very much to all replies especially Eric who sent me more info personally.I used a headlamp to work the o ignition circuit and it took about 25 tries before the culprit showed up Wennesday morning.The ignition switch was defective-replaced it and tried...
2008 GMC Acadia SLT 3.6L MIL Lamp on VIN: 1GKER23748
Code has not returned according to customer they are on a road trip for two mos. According to one poster (daniel) stated he has one that makes the same noise and its likely normal. Paul: Noise was present with/without gas cap attached to filler neck. David... Trouble codes: P0449 (Evaportive Emmissions Control Circuit Intermittant).
1990 Oldsmobile Toronado Trofeo 3.8L Poor Idle Quality VIN: 1G3EV13C9L
It turns out that we got a bad IAC motor. When we got a different one and plugged it in, that cured it. Thanks to those who set in replies.
2002 Pontiac Grand Prix GT 3.8L hard shift when at all times VIN: 1G2WP12K92
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