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Professional Automotive Repair Technical Discussions for March 16, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1990 Cadillac Seville 4.5L theft &air bag VIN: 1G6KS5334L Hi Cady experts. I got this car in to replace the heater core. I finished the job got the car running all looks ok. Next day customer came to pick up the car when I went to tart it up it did but then the engine tuned off. Then I got the massage on the ac displ... |
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| 1996 Chevrolet Astro 4.3L dash gauges and starting vehicle towed in for a no start checked out determined that the ignition switch was not getting power thru to the pink wire. i went to the dealer and got a new ignition switch, installed switch same condition, went back and got another switch installed switch ... |
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| 1997 Chevrolet Astro 4.3L No Start, Cuts out, Misfire VIN: 1GEL19W8VB Help my good friends, This van has had a hard start problem for the last 2.5 years. Can't seem to get to the bottom of the problem. This is a great neighbors van and he has always paid me for any work that I have done to try and fix it. Always hard start or no... |
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| 1999 Chevrolet Astro 4.3L transfer case VIN: 1GNEL19WXX This all wheel drive vehicle locks up during turning manoeuvres at slow speeds. In January 2002, we serviced the transfer case with the new approved GM fluid...this solved the problem for a year and a half. Last October 2003, the same problem reoccured. We rem... |
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| 2001 Chevrolet Blazer LS 4.3L Surge, MIL Lamp on VIN: 1GNDT13W11 This Blazer will surge from 32 mph to 48 mph half throttle 2nd gear under load monitored data in graphing mode while vehicle is surging here is what I observed EGR bounces from .90v(closed) to 4.40v (wide open) MAF varies slightly O2 sensors are switching norm... Trouble codes: P0101 (maf out of range), P0404 (egr) |
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| 2004 Chevrolet Trailblazer EXT North Face 5.3L Lighting VIN: 1GNET16P14 Hello, I have customer thast wants us to make his trail blazer towable behind his motorhome. He wants us to hook in to the taillights so they will work with the motorhome lights. He thinks we can hook into the trailier plug on the trailblazer and back feed th... |
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| 2000 GMC Yukon SLT 5.3L pulling right VIN: 1GKEK13T6Y Hello IATN Members, I am having some difficulties with this Yukon pulling to the right. I have aligned it several times varying the dimensions. I tried setting the alignment to force it to pull to the left, I had 1.8 degrees of caster seperation and 0.6 degre... |
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| 2004 GMC Envoy XL SLT 4.2L Amplifier VIN: 1GKET16S34 Help! This Envoy came to our dealer with acrackling sound out of the right front door speaker.I quickly tried a test speaker and the noise was still there.After talking to GM tech assisstance,I tried switching the frt door speaker output circuits at the amplif... |
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| 1993 Oldsmobile Achieva S 3.3L MIL Lamp on VIN: 1G3NL14N6P Customer came in complaining of mil and rough idle. Code 44 stored. Monitored data stream and determined car is indeed extremely lean, minimal O2 voltage (below.10) block learn and integrator off the chart 150 and 212 respectively. Found MAF to be contaminated... Trouble codes: 44 (lean exhaust) |
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| 1997 Oldsmobile Regency 3.8L no cranking VIN: 1G3HC52K2V Is there a way to reprogram the new module or is there a nother problem Thanks for all your help |
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| 1999 Oldsmobile Bravada 4.3L automatic a/c heater system. VIN: 1GHDT13W4X Hi I hope you guys can help me with this one. We have a olds bravada that the heater control won`t go to the cold position. Took dash apart and replaced the temp sensor motor and the new one just went to the hot position and stays there.I checked all related w... |
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| 1992 Pontiac Grand Am SE 3.3L High Idle VIN: 1G2NW51N1N This car has high idle rpm - 2000-2100 rpm.No vacuum leaking, all sensors are working properly. There was changed MAF sensor, ECM. Checked drop voltage on the ground to each sensor and to ECM - aprox.0,01V. Fuel pressure is OK -37-40 psi.Doesn't help nothing. ... |
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| 1996 Pontiac Grand Am SE 2.4L cluster VIN: 1G2NE52T4T when turn key to acc. the left side of the cluster light up air bag light flash 7 time service soon light stay on when turn the key to ignition the air bag light flash 7 time then go out no other light come on or gauge works even when vehicle start. all fuse a... |
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| 1993 Saturn SL1 1.9L pinging-timing advan VIN: 1G82H5592P 93 Saturn came in with a timing chain AFU. We replaced all components with GM parts, cleaned out the oil pan and such. No “silver" links on the chain, aligned up all marks as needed. Car started on the first key turn, ran like a champ. Car went home. Came back... Trouble codes: F1AG, 53 (Electronic spark control over max value), F1AG, 83 (low coolant) |
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| 2001 Saturn L300 3.0L abs light VIN: 1G8JW54R01 This vehicle has the ABS light coming on intermittently-it has come on 3 times in the last week, it goes off 2 out of three times by turning the key off and then restarting the vehicle. One time it took 3 restarts before going off. Additionally, we have felt t... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1989 Chevrolet Beretta GT 2.8L voltmeter, tach, temp VIN: 1G1LW14W5K Most logical sugestion was a poor ground for the instrument cluster. One responder said 'if its not broke why fix it, and who's going to pay'. This was a used car dealer vehicle. Wanted to educate myself on this, and was willing to spend some 'free' time on it... |
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| 1989 Chevrolet Corsica 2.8L engine VIN: 1G1LT51W1K hi guys sorry it took so long to get back on this car. the problem turned out to be the timing chain/sprocket. the sprocket center was out of round causing the knocking sound. thx for all the replies rick |
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| 1990 Chevrolet C1500 Cheyenne 5.7L No Start VIN: 1GCDC14K3L thank you to all that replied . found that ecm was the culprit. had some soup and all was good. appears that injectors spray pattern was weak . onced replaced ecm injectors sprayed enough fuel to start andrun. again thanks to all Trouble codes: 44 (lean). |
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| 1997 Chevrolet C2500 Cheyenne 5.7L No Start, Cuts out VIN: 1GCFC29R2V this truck is finaly fixed,after disconnecting all the drivers and sensors one at a time (truck still blew the fuse every time) I replace the computer and the truck ran fine.I would like to thank,Keith,Dad,Kevin,Alwin for taking the time to try to help a fello... |
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| 1998 Chevrolet Malibu 3.1L shift indicator,radio VIN: 1G1ND52M9W The lamp dimmer module was the problem. When the aftermarket alarm was installed they had hooked into the wrong wire and burned it out. And the part was only about 25.00 cost and the part is not made buy GM but buy mallory. |
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| 2000 Chevrolet Tahoe 5.3L Hard start VIN: 1GNEC13T1Y After quite a few cycles of the key the fuel regulator started to leak,so after replacing the regulator the Tahoe cranked just fine even after hot soak. So a big thankyou to all those who replied to my request,some of these problems just seem to drive us cra... |
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| 1995 Geo Prizm LSi 1.8L No Start VIN: 1Y1SK5287S thanks to everyone who replied. most told me to ck dist module and ignitor in distributor. had another dist. dropped it in and nothing. now you guessed it. crank sensor!! the sensor had deteriated from a bad oil leak and came apart below the mounting pad. popp... |
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| 1996 Geo Prizm 1.6L RF locked up VIN: 1Y1SK5261V Thanks too all that replied, I had tried to get to act up but couldn't in what time I have to drive a vehicle. But when replies suggested brake fluid contamination that was it. I get alot of wiring and driveability and the cause just went by me.But thanks for ... |
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| 1991 Oldsmobile Silhouette 3.1L window motors VIN: 1GHUD06L9R thanks for help jan after reinspecting the wires we found that a wire had just a bump in the insulation and was right at the door we stripped it back and repaired it |
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| 1997 Pontiac Grand Prix SE 3.8L day running lights The DRL diode checked good with a diode tester but when I sub'd a new one the DRL worked. Thanks for all the help, Andy. |
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| 1998 Pontiac Trans Sport Montana 3.4L Misfire VIN: 1GMDU03E0W I didn't get this vehicle back in for 3 weeks after the post but I did get a used ECM ,from a malibu, to try .after reflashing to the orignal program the results speak for there self. Heres the orignal Lean missfire under low RPM lightload condition ... |
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| 1996 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZH5287T Thanks for all your replies, the car has not been back in yet, I guess the cel has not beenback on yet. Some of the replies were, replace plug wires, module and coils at same time, replace only 1&4 coil, clean plate under module and matting surface and replace... Trouble codes: P0341. |
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