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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 22, 2009
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Open Help Requests for GM
Help Request Answers
2000 Buick LeSabre Custom 3.8L Accessories VIN: 1G4HP54K1Y
This is the wifes car so... She went to turn on the road and it died. Lost all power completely. I have no lights, anywhere, key on produces nothing. No chime or dash lights when turned to run or crank position. Removed rear seat and tested Battery. it passed ...
1993 Chevrolet S10 Blazer 4.3L Poor Fuel Economy
Came in last week overheating. Radiator froze solid and cracked. Replaced radiator, temp sensor and broken temp sender. Now complaint of poor fuel economy. Fuel pressure good, pulled plenum, regulator and spider are both dry. Customer has always taken great ca...
2001 Chevrolet Silverado 2500 HD 8.1L transmission VIN: 1GCHK29G71
Hey GM trans guys, We just got this truck in, from a new customer. The complaint was that the CEL was on, with no drivability syptoms. A quick scan got a P0700 from the PCM, which is a trans component fault. I scanned the trans and got a P0841 trans pressure ...
2004 Chevrolet Suburban 1500 LT 5.3L Door locks, Insterment lights VIN: 1GNEC16Z74
Truck showed up with a bad miss. Found cam lob flat among other things. Owner elected to install used motor over the repairs to old one. Everything seemed normal until we tried to start it up. Engine will not turn over (starter will not energize) Bypass the st...
2008 Chevrolet Silverado 2500 HD LT 6.6L MIL Lamp on VIN: 1FSDJFHSK4
I have an 08 duramax with a app. issue.The truck will pull 10,000 lbs. up any grade in lock up 6th gear but whe you use the cruise control it will downshift on the flats in a 10mph headwind empty...all data looks normal for the exception of the app...my cheap ...
1998 GMC K1500 Suburban 5.7L 4 wheel drive VIN: 3GKFK16R4W
hey guys got a 98 gmc suburban 4 wheel drive will engage but the lights on the 4 high button will flash which usually means it is not engaged customer has a house in upstate n.y with long driveway dont want to tell him dont worry and then it does not engage be...
2003 GMC Sierra 1500 SLE 5.3L Speedo VIN: 1GCEC14VX3
Speedo on this truck will stay up at 80km/hr when truck is shut down. Start it back up and speedo is still there at 80. The speedo will work but it uses 80km/hr as zero and goes up from there. Next time truck is shut off the speedo may drop down to 60 but it n...
2004 GMC Sierra 2500 HD 6.0L Misfire VIN: 1GTHK29U14
has a missfir number 5 clyinder at idle only as soon as throtle touched and rpm rises ten rpm missfire gone, has good compression and vaccum, fuel pressure good, switched coils and injectors around miss stays on number five. rechecked for vaccum leaks and none... Trouble codes: P030*
2005 GMC Envoy XL Denali 5.3L Mechanical VIN: 1GKES63M16
It frist came in with misfire p0306 code. Checked the spark plug and it had oil on it. Checked compression and it was 0. I pulled the valve cover and the intake rocker arm was not moving. Pulled the head and replaced the lifters. Cyl #6 had a spring on top of ...
1989 Oldsmobile Cutlass Ciera 3.3L Cuts out VIN: 1G3AJ51N6K
this engine intermittantly, under load, shuts off completely just like you turned off the key. restarts immediately. after the above repairs, car was driven 350 miles before it did it again. customer says it then cut out more and more frequently before he retu...
2003 Oldsmobile Bravada 4.2L heater VIN: 1GHDT13S73
After replacing the transmission the floor airlow is inop. The vehicle has automatic dual zone controls, I tested all the wiring it checks out ok. I tried disconnecting the battery several times. I tried a relearn but it doesnt seem to work with b0248 defrost ...
2002 Saturn L100 2.2L no Crankcase venting VIN: 1G8JS54FX2
Car has oil in air intake and white foam on oil fill cap and on dipstick. Oil didn't look bad but obvious PCV not working. Tested as described in Alldata and it says to clean PCV valve. Now the fresh air return is located from the air intake to the valve cover...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Cadillac Escalade 5.7L p/s VIN: 1GYEK13R2Y
Alright fellas...the fix is in. R&R steering gear and retest - o.k. Having to make diagnostics without the proper tools is unpopular amongst any tech. Unfortunately...sometimes that is the way it goes. I am going to get a p/s anylyzer, hopefully save me fr...
2001 Chevrolet Astro 4.3L Drive-axles VIN: 1GNEL19W31
thanks every one for your help, i have fix it, the truck was lower at the front, some one has move the ajusters at the torsion bar and lower the front of vehicle and the lower is at the front the far out the is the bearing of the axle inner cup. i lift the fro...
2002 Chevrolet Silverado 2500 HD 6.0L Internal lubrication tube VIN: 1GCH1K29U2
Well this one is down the road. Got 12 great replies which informed me that the damaged tube fed lube to rear bushing and planetary area. Once I got the tube off I found I could blow through it just a little bit so after a conference with my customer we decide...
2004 Chevrolet Malibu 2.2L hard start VIN: 1G1ND52F04
thanks to all those guys that offered their time and advice.after reading all the suggestions i dug into it alittle deeper.it turns out that after i called the customer and started drilling the questions to her. i got the clues i needed.i found out that she j...
2003 GMC Sierra 2500 HD 6.6L No Start VIN: 1GTHK29133
Sorry about the delay in closing this & many thanks to all for their responses. Upon learning the details of GM's open campaign for replacing failed injectors - I counselled client to report with the truck the the local dealer and plead his case. As I susp...
2003 Saturn Vue 2.2L Stall VIN: 5GZCZ33D83
I forgot to mention none of the gauges work-we checked all power and grounds to the bcm are good- bcm fixed this one Trouble codes: P1599, U2107.
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