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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 24, 2009
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Open Help Requests for GM
Help Request Answers
2004 Buick Regal GS 3.8L Starting VIN: 2G4WB52K84
So lucky me got the project installed a remnan bcm from a1 cardone sent it to the dealer to be reprogramed all was well. cusomer came back today with the same complaint no start no crank prndl indicator lights up but no crank have checked the terminals in the ...
2007 Buick Rainier CXL 4.2L MIL Lamp on VIN: 5GADS13S24
car came in wiyh c.e.l. on codes p0136 and p1133. replaced front 02 for not switching fast enough. test drove both codes came back within 2 miles of driving. front 02 goes below 100mv and above 900mv sometimes hangs around 800mv for a second then goes down bel... Trouble codes: P1133 (ho2s insufficient switching b1 s1), P0136 (02 sensor fault b1 s2)
2003 Cadillac Seville SLS 4.6L front blower motor VIN: 1G6KS54Y73
Everytime I go at this one with any sort of diagnostic tool she corrects herself and works fine. The owner has thought at diffirent times putting the front defroster on cured the problem, slamming the right front door cured the problem, floorboarding the accel...
2007 Cadillac Escalade EXT 6.2L strut VIN: 3GYFK628X7
Thanks in advance for your time fellow techs. I recentley replaced both front struts on this escalade due to leakage and noise. During the test drive after the repair the service suspenion message came on . I found a hard code c0575 left front actuator open. I...
1999 Chevrolet Astro LS 4.3L Interior Courtesy Lights VIN: 1GNDM19W9X
Customer brought vehicle to us with complaint that interior courtesy lights are inop and courtesy fuse blows. Vehicle is equipped with RKE. When using a circuit breaker in place of the fuse, last door is closed, lights instantly fade off and breaker trips. We'...
1999 Chevrolet Corvette 5.7L propeller shaft VIN: 1G1YY22G5X
A friend has this car in his shop due to a noise in the driveline. When the car is at idle,(in park) a noise which sounds like a severly cracked flex plate is coming from the driveshaft tunnel. The pitch of the noise changes when the trans is engaged. Visual i...
2001 Chevrolet Express 3500 5.7L Hesitation, Stall, Misfire VIN: 1GBJG31R31
Thank You in advance for looking this over. Are there any CNG users out there with experiance on a Bay Tech 5.7 Chevrolet CNG conversion? We have a 2001 3500 Express van that is giving us problems. It will run fine for a few days then loose power, stall, and ... Trouble codes: P0131, P0137, P0151
2003 Chevrolet Suburban 1500 LT 5.3L drivers door lock,window,mirror VIN: 3GNFK16Z83
Hello again and thanks in advance for any help, I have this 2003 chevy suburban that came in for no power window, door locks functioning, upon checking it out I found the other door locks will work from the passenger switch just not the drivers door, and the o...
2004 Chevrolet Malibu 2.2L valve trane
i have this 2004 malibu top end sounds like a sewing machine have good oil presure but dosent seem to be getting up to the cams. theres very little signs of oil on top i pulled the oil pump and presure relife valve and all is in good working order i can not fi...
2006 Chevrolet Impala LT 3.5L Surge, hunting VIN: 2G1WB58K16
At hyw.speeds the vehicle hunts.(approx.105kph)If you put your foot into it there is good power and runs great.The scanner shows the actual and desired timing to be jumping almost 23 degrees in time with the hunting.It is not the trans.or torque convertor.We f...
2004 GMC Sierra 1500 4.8L No Start VIN: 1GTEC19VX4
truck towed in w/no start . will crank & die,but have only limited accessories (radio,gauges & windows work for only a split second while cranking then they go dead). cluster reads battery not charging & unknown driver. cannot communicate w/any scanner in our ...
2002 Oldsmobile Alero GL 3.4L wont crank VIN: 1G3NL52E52
Well of course its 10 after 6 on friday and she calls and the cashless clunker wont start. It wont crank and the security light flashes. All the wrecker drivers are quit and home drinkin. So I clear all the junk off my trailer since shes parked in a PAY lot an...
1992 Pontiac Bonneville SE 3.8L Blower VIN: 1G2HX53L3N
No power at blower switch or motor. Was working when we pulled it in to charge a/c. Thinking it's a relay or resistor, but it has a set in engine compartment and another behid passenger side dash. No burned connectors or wiring on switch or blower.
2002 Saturn L200 2.2L body control VIN: 1G8JV54F32
The body control on this saturn locks up intermittantly-it then ceases to function until it is powered down (battery disconnect)and restarted I want to replace the control but they are backordered (with no ship date) I have access to a used control -I need to ...
2006 Saturn Ion-2 2.2L oil leak VIN: 1G8AJ55FX6
Saturn came in for an oil change 2.2 ecotech. We noticed an oil leak and he said he adds 3 qts. between oil changes. We cleaned it all up and ran the car on the hoist for 15 minutes with out a single drip. Shut the car off and it dripped out a considerable amo...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Park Avenue 3.8L No Start, Stall VIN: 1G4CW52K8S
1996 Buick Century Custom 3.1L valve train VIN: 1G4AG55M8T
hey I would like to thank all of you who repleid with your ideas all were great but 1 idea hit the nail on the head Thomas [...] yes we were supplied the gasket set from the machine shop and just assumed they would cover both. After tearing back down the top...
2004 Buick Rendezvous CX 3.4L 4th gear Flair/Slip VIN: 3G5DA03E04
Thank you to all who helped me with this vehicle! After recieving some really helpful ideas, and 1 goofy one! Pretty much everyone who replied,had alittle fix in this one. After removing the transmission again,dissasembling & inspection.There was some matter i...
1993 Chevrolet Lumina 3.1L long crank to start VIN: 2G1WL54T4P
I replaced the fuel pump and filter, It seems to have fixed the odd problem I was having. It went quite well after a couple soak downs with PB. Thanks for the help.
1997 Chevrolet Astro 4.3L Hesitation, MIL Lamp on VIN: 1GNDM19W3V
well i can say it is finally fixed. I put in the fuel spider because it was leaking and dremeled out the hold down to get the timing on 0 degrees. this made it start and idle nice but the code kept coming back and still no power. I told the owner to tell the g... Trouble codes: P0341.
1999 Chevrolet Silverado 1500 4.3L Ignition coil VIN: 2GCEC19W1X
Hi every One , Thank you alot for your time and expert advise. As far as it was not security problem As John [...] from New York said Its Normal the light to blink. Timothy made it more clear that this truck would not take Ignition away as part of securit...
1999 Chevrolet C1500 LS 5.0L No Start VIN: 1CGEC14WXX
This truck had me chasing my tail!!! It turns out the distributor gear was out of it? This truck ran perfectly on the road test for the safety? Then all the misfires? that wouldn't show up on live data but in the history data, and you could feel the misfires ....
2001 Chevrolet Cavalier 2.2L Hesitation, MIL Lamp on VIN: 3G1JC52481
IATN is a great network for all technicians who knows how to use it and for me its the best tool.Thank you again from everyone who responded to my post.eight of you who replied confirmed my diagnosis for the TPS sensor.After replacing TPS sensor and multiple r... Trouble codes: P0122.
2002 Chevrolet Tahoe LS 5.3L Stall VIN: 1GNEK13Z12
hey techs. thanks for the input.the problem was the ecm.after three attempts to have an aftermarket supplier program the replacement part,we took it to our local dealer,and unfortunately paid heavily,the customer has called and no concerns have reappeared.agai...
2003 Chevrolet Venture LS 3.4L MIL Lamp on VIN: 1GNDXO3E53
After taking over this vehicle from the tech that was working on it I discovered thaqt the front O2 sensor was locked lean. Inducing a rich condition showed no changes in the voltage and unplugging the sesor allowed it to go right to it's bias voltage. repla...
2006 Chevrolet Express 1500 LT 4.3L No Start, Stall VIN: 1GCFG15X26
this vehilce ended up being towed out, i did not have time to continue diagnosing, it had been at the shop too long prior to me get it and customers patience was depleted, lots of great replies, thanks for all your input, i know this information will help some...
2000 GMC Jimmy SLT 4.3L engine VIN: 1GKDT13WXY
Went ahead and had parts supplier warranty the replacement fan clutch friday, and let pops drive vehicle saturday and sunday, i drove all over town friday night. Noise is now what i would consider normal, like some said, very loud noise now gone and seems to ...
2003 GMC Yukon XL 1500 Denali 6.0L Electronic VIN: 1GKFK66U13
This system is very confusing to me. the customer is struggling for money and are bringing it back when they have more, they picked up the car right after I opened the request and hoped they would be back before I had to close it.. Some replies said that the d...
2006 GMC Sierra 3500 SL 6.6L compressor VIN: 1GDJC34DX6
Sorry for the delay in posting the fix. After testing all the inputs and sensors i turned to splice packs and the wire harness, which i have seen a few run through here with issues. I found that the splice packs were in good condition and continued to the ...
2001 Pontiac Grand Am SE 3.4L MIL Lamp on, VIN: 1G2NF52E51
Thank you to all who replied We just got the car back today and smoke tested from tank to cap.It was leaking at fill tube below the gas cap. replaced fill tube and no more leaks. Trouble codes: P0440 (evap system).
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