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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 16, 2008
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Open Help Requests for GM
Help Request Answers
1996 Cadillac Seville SLS 4.6L ride control VIN: 1GGKY529XT
when turing to right at lower speeds there is a clicking noise from front left side near tire.the weight of the vehicle has to transfer to this side to here the noise. unsure of where to go.this system does have auto leveling.i think it may be the strut.but it...
1996 Chevrolet C1500 4.3L MIL Lamp on VIN: 2GCEC19W1T
The above mentioned vehicle has had a recurring check engine light on.We can clear the code(p0420) and some times it might stay off for a week and then some time it will come back on the next day.As mentioned the cat has been changed and o2 sensor. Both were c... Trouble codes: P0420
1998 Chevrolet K1500 Cheyenne 5.7L Blower motor VIN: 2GCEK19R5W
Anybody out there that has had to fix a cowel area water leak coming into the heater housing?
2000 Chevrolet Silverado 1500 5.3L Poor Fuel Economy VIN: 1GCEK19TOY
Customer Has recently Purchased This Truck Aprox 5000 Miles Ago System has No Codes Wave Form on The Oxygen sensors Seems To Be Good Most Of The Time and Then The Bank 2 sensors Will Start To Go Way Down and Then Way Up Have Trapped many Movies On the Geniysis...
2002 Chevrolet Impala 3.4L a/c comp VIN: 2G1WF52E22
no comp clutch enagement even from pcm relay grnd control. all wiring fuses relay good. pressure sw active on pids, a/c request pid on bcm worinking,no a/c request toggling on pcm pid. isuspect the bcm as an aftermarket alarm was tied in, but disconnected in s...
2003 Chevrolet Malibu 3.1L theft deterrent sys. VIN: 1G1ND52J13
fellow techs, a big thank you in advance of any help i can get on this one. i have checked my tsb,s on this but could not find anything. i do find it odd that the voltage readings in the theft deterrent circut are zero, yet the system can be programmed and the...
2005 Chevrolet Impala LS 3.8L Misfire VIN: 2G1WH52K25
Hello everyone, this has a #2 cylinder miss fire. Ignition is good, very healthy spark. Injector fires as good as the other cylinders and fuel drop is the same. compression is 165 on all cylinders. I have even pulled the plug out to see if it was sparking and... Trouble codes: P0300
2005 Chevrolet Uplander LS 3.5L belt lock VIN: 1GNDV23LX5
Customer said the buzzer came on when put in gear. He tried to pull the under hood fuses 1 at a time to stop the buzzer. It did not work. After i scaned for codes and found none i checked the buzzer comes on in gear with the seatbelt on but the scan data will ...
2005 Chevrolet Trailblazer LS 4.2L encoder motor VIN: 1GNDT13S35
hello neighbours, trail blazer came in 4x4 light on scanned found encoder motor circuit problem, removed motor and manually tried to move it by supplying power and ground,didn't work ordered new motor (dorman) installed it still light on same code removed moto...
1999 GMC K2500 Sierra SLE 7.4L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1GTGK23J6X
hey all need some help[ on this one. installed reman longblock customer pick up and drove fine for about a week.then it stated stumbling on him. got the truck back at the shop found codes p0102 checked maf and it is not having any activity replaced drove and d... Trouble codes: P0102
2005 GMC Sierra 1500 5.3L loss of power VIN: 1GTEC14255
Morning, this vehicle has this code set very intermittantly on cold starts, but only once and posts the reduced power message until the next restart and returns to normal, and resets and turns of the ses generaly before it gets to the shop for repair, I cannot... Trouble codes: P0220 (tp sensor circut or app sensor out of range), P2135 (TP sensor 1 and TP sensor 2 correlation)
1988 Oldsmobile Delta 88 Royale 3.8L No Start VIN: 1G3HN54C8J
I have a multiple repeat failure with the ignition coil pack on this car. It is a 3800 V-6 VIN "C" with the Magnavox Type I single coil pack. It came in as a no start with intermittent backfire into the intake. Using an inline spark tester I had spark on two c...
1995 Oldsmobile 88 Royale 3.8L MIL Lamp on
Greetings Y'all. Gots me a strange one. This LSS arrived with a transmission that ate itsself. It went off to a tranny shop to be delt with. At first, it seemed OK, but after a while, it developed interesting symptoms. It tended to vary depending on who drove ...
2006 Pontiac Torrent 3.4L hvac VIN: 2CKDL73F26
car has no heat at any time. It seems there is an air blend door, but I am not seeing any scan testing ability from my solus. also not finding anything in tech bulletins. Any knowledge of this system or help appreciated. thanks jim

Fixes & Summaries for GM
Fix/Summary Answers
2003 Chevrolet Astro 4.3L dome lights VIN: 1GNDM19X03
Well, so much for Snap-On Solus. I used the Tech-2 and it showed the side door jam switch staying on. Replaced jam switch & lights now work normally. BASICS & FACTORY TOOLS WHEN POSSIBLE, expecially with electronics. Thanks to those who attempted help. Howard
2005 Chevrolet Cavalier LS 2.2L misc. warning lamps VIN: 1G1JF52F85
I appreciate all the replies & thanks again, sorry for the delay but we have rescheduled this guy twice and something always comes up where he can't make it in. We're kinda in limbo at this point. We will definately scope the affected speed sensor when it ev...
1998 GMC Jimmy Envoy 4.3L abs VIN: 1GKDT13W4W
Thanks to everyone for the replies. Almost everyone offered checking for rust under the front wheel sensors or play wheel bearing play, which I did yesterday. Was able to check the pass sensor but no rust was present, but cleaned it anyway. Could not check the...
2004 GMC Sierra 3500 6.6L runs out of fuel VIN: 1GDJC3426E
installed new updated front fuel tank,the problem wasnt the fuel card.the filler neck or the spud goes to far down into the tank thus sender float gets hung up on it and gage will read alittle over 1/2 even when the tank is full and then the will go to empty a...
1990 Oldsmobile Silhouette 3.1L Cuts out VIN: 1GHCU06D4L
I called the customer and so far so good. We warrantied the cat with a different brand and then did some more testing. Fuel trim looked slightly rich at about 134 so we tried to get that down. Since everything looked good we tried another MAP sensor. Fuel trim...
1999 Oldsmobile Aurora 4.0L Poor Idle Quality, Hesitation, Misfire VIN: 163GR62C0X
Well this car threw me for a loop. I ohmed( i;m not a big fan of ohming) the injector, flow tested the injector, and listened to the injector. All came back the injector is ok. I checked everything, installed new plugs, wires(one was shorted) and sprayed fo... Trouble codes: P0300, P0440, P0560, P0603, P1637.
1995 Pontiac Grand Am GT 3.1L temp up and down VIN: 1G2NW55M6S
Thanks so much for all the help. The responce was overwhelming. SO many people took the time to help it is heartwarming. Now the fix. Many of the replies said what I was seeing was the very first stages of either a head gasket or intake gasket failure. I ha...
1996 Pontiac Grand Am SE 3.1L ERLS fuse blows very intermittently VIN: 1G2NE12MXT
I was not ever able to get this extremely intermittent problem to recur. I checked the shifter area, and wiring near trans bulkhead connector per advice recieved. I wired in inline fuses in front of the A/C Compressor, EGR valve, and ATX controls so that if an...
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