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Prev Professional Automotive Repair Technical Discussions for February 17, 2005
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Open Help Requests for GM
Help Request Answers
2002 Buick Park Avenue 3.8L No Start VIN: 1G4CW54K42
Hey Guys, This is a fun one to end the week with. This car came in on a hook due to it wouldn't crank. Another shop of ours hooked a booster pack to it and it started and they drove it in and replaced the battery. As far as I know that is all they did. Now the...
1993 Chevrolet Lumina 3.1L power steering pump/line VIN: 2G1WL54T2P
New customer brought a car in the other day leaking power steering fluid bad. One of our techs put a power steering pump on it and it is still leaking at the pressure line fitting. At some point someone has put a new line on the car. We ordered 2 more pumps to...
1993 Chevrolet C1500 Cheyenne 4.3L spark rattle VIN: 1GCEC14Z2P
truck was brought in with terrible spark rattle, has been to another shop and i see the egr valve and the egr solenoid have been replaced along with the map sensor. customer says truck was running fine then all of a sudden started spark rattle. i have checked ...
1996 Chevrolet Blazer 4.3L Runs Rich VIN: 1GNCS13W0T
Since THe Fuel Pressure Tests Good & The Drop Was Within Specs, I Think The Injectors May Need To Be Flushed, But I don't Know The Proper Procedure. Need Advice, Thanks In Advance Trouble codes: P0172, P0175
1997 Chevrolet Express 3500 5.7L brakes VIN: IGAHG39R9V
customer came in with a brake complaint. they said when they come to a stop they have to put both feet on the brake pedal and push as hard a they can to try and stop. it will stop but not like it should. this is an intermittent problem, only occuring once ever...
1997 Chevrolet Tahoe LS 5.7L Misfire, MIL Lamp on VIN: 1GNEK13R1V
fellow technicians, need help diagnosing a missfire. Check engine light on-code 300 (random missfire). Vehicle runs excellent, although mil still showing missfire on #5 cylinder. Have ruled out secondary ignition. Have replaced cap, rotor and injector. Also d... Trouble codes: 300 (random missfire)
1997 Chevrolet C1500 5.0L 3-2 shift solenoid VIN: 2GCEC19M4T
this is for you tranz techs,and i think it will be an eazy one.we dont do tranz work here so i want to make sure in not going to get in over my head. this truck is setting P1886, it needs a 3-2 sift solenoid. i made sure the vcm was doing its thing right and t...
1997 Chevrolet K1500 Cheyenne 5.7L MIL Lamp on VIN: 2GCEK19R4V
hello techs, i am trying to help another local shop out. truck has a timing problem. he gets a 1345 cam crank correlation problem i scanned it and followed the snap on ref140 and can't figure it out. checked dist timing . he replaced cam and crank sensor. we e... Trouble codes: P1345
1999 Chevrolet Astro 4.3L Converter VIN: 1GNEL19WXX
Hello I have a customer with what I believe is a transmission problem. I am not familiar enough with transmissions to know if it is a hydraulic, mechanical or electronic problem, or if it is indeed in that system. We are an undercar shop and we will not be fi...
2002 Chevrolet Avalanche 1500 5.3L Misfire, MIL Lamp on VIN: 3GNEK13T12
2002 Chevrolet Avalanche brought in for a severe miss, it has a code p0300. I ran the injector clean procedure per the TSB and it did not help. My MT 2500 shows all the even cylinders are misfiring and the odd are fine. The ignition system is working fine and ... Trouble codes: P0300
1997 GMC 6500 3116CC No Start VIN: 1GDJ6H19VJ
We are looking for truck tech help. We have a 3116 cat motor in this dump truck. Problem is it has to crank for 1 1/2 minutes before it will start cold.When it does start it runs rough for A few minutes then it is fine the rest of the day.I know its a fuel pro...
1999 GMC Jimmy SL 4.3L start and stall VIN: 1GKDT13W3X
running. it starts and fun for 2 seconds and stall. it runs and all cylinders with no miss. it has good spark and fuel presure, it seems to loose injection. no codes found
1997 Pontiac Trans Sport 3.4L Cooling Systems VIN: 1GMDX03E7V
A year ago vehicle came in and we noticed the dexcool in valve cover syndrome. We recommended intake manifold gasket replacement. Customer had us perform this task and we found the normal cracked plastic, perhaps not the worst case we have seen but definitely ...
1998 Pontiac Grand Prix SE 3.8L 3-2 downshift VIN: 1G2WJ52K9W
When driving this vehicle you can't tell that there is any problem except on the 3-2 downshift. The only time the car will act up is from a steady speed of at least 40. When you brake down to a speed to 20-25mph then immediately request a downshift to 2nd gear...
1999 Pontiac Sunfire SE 2.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2JB52T3X
good afternoon trouble shooters! I've another problem child here. 1999 pontiac sunfire failed CT. emissions test. this vehicle was bvought at auction so i only have recent history to relate. customer to vehicle to pontiac dealer, they replace ignition module a... Trouble codes: 0300 (random cylinder misfire)
2002 Pontiac Grand Am SE 3.4L Starting VIN: 1G2NF52E82
Hello all, I have this 2002 grand am se for a no start, no crank condition. No power to starter trigger wire. Went to mitchell and pulled up Starting/charging wiring diagram for 2002. Checked for power at crank fuse while cranking: yes . Then i pulled relay ou...

Fixes & Summaries for GM
Fix/Summary Answers
1992 Buick Park Avenue 3.8L Dual Zone VIN: 1G4CW53L5N
sorry for the late reply,customer don't want to spend three hundred dollars for the new programmer if I can't make sure that is the problem. Thank you.
2001 Buick Regal LS 3.8L MIL Lamp on VIN: 2G4WB55K21
Thanks to Kirk and Tye for your replies. Especially for the GM website to reflash the ECM for the fix. ECM is reflashed and the vehicle is considered to be fixed. Trouble codes: P1404 (EGR Position error/EGR clsd perf.).
1996 Chevrolet Blazer 4.3L Hesitation VIN: 1GNDT13W2T
The customer did not ok the fix, I receved greate repiles i am sure a fix were in there some place,.thinks to all of you. Trouble codes: N0N.
2000 Chevrolet Silverado 1500 4.3L No Start, Stall VIN: 2GCEC19W9Y
first id like to thank everyone for all the replies. they helped us make sure we didnt miss anything. we had already installed a spacer on the crank sensor and this time tried the second spacer. hopefully this completely takes care of the problem. thanks john ... Trouble codes: P339.
1989 Oldsmobile Cutlass Supreme SL 3.1L Surge, Stall, MIL Lamp on VIN: 1G3WS14T1K
Jerry from Michigan is the only one out of 25 to get it. I put in a junkyard computer and an o2 and ran a motorvac and the car is fixed, just took a raod test to straighten the car out (I wasted time worring about BLM and Integrator). no more surging or stalli... Trouble codes: 45 (rich exhaust).
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