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Prev Professional Automotive Repair Technical Discussions for May 24, 2010
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Open Help Requests for GM
Help Request Answers
1991 Chevrolet Cavalier VL 2.2L Unknown VIN: 1G1JC5443N
Ive got a 1991 chevy cavalier vl 2.2l automatic trans once stated runs great dies and no spark
1998 Chevrolet Corvette 5.7L Blower VIN: 1G1YY22G3W
We have no blower motor control. On the display the speed bars change when selected, but no blower or change on the techII desired speed counts. When run to high there is no change until the button is pushed two more times. Then speed goes to high. The same fo...
2002 Chevrolet Impala 3.8L No Start VIN: 2G1WH55K12
i have a 02 impalla that will strand customer at random tomes with no start,always startes when i get there. finaly went to their house when problem present.scaned trans,engine,bcm and found b2958/b2960 started fine,drove to shop.customer stated th... Trouble codes: B2958, B2960
2002 Chevrolet Tahoe LT 5.3L rear temp door actuator VIN: 1GNEC13Z62
Hi Fellow Techs, We have this Tahoe(the shop owners brother's)which is giving us fits with the rear A/C temp actuator. We are able to scan codes (BO434) but cannot get data from our Genesys. We found a bulletin #06-01-39-015A pertaing to a controll module tha...
2004 Chevrolet Silverado 3500 6.0L MIL Lamp on, Power loss VIN: 1GBJC34U24
Reoccurring P1125 This truck first arrived an intermittent Reduced Power Light and the customer reporting power loss. A code check found a P1125. We went right too the APP sensor and compared sensor 1 and sensor 2. The two matched up perfectly. The connector t... Trouble codes: P1125 (APP sensor 1 2 out of correlation)
2005 Chevrolet Express 2500 4.8L Hesitation, Cuts out VIN: 1GCGG25V65
Hello all, Customer brought van in for normal service, L.O.F., check over and whatnot. He also stated that occasionally the van will fall on its face when he hits the throttle after the van has set awhile. I have only had it do it to me twice, but had fuel pr...
2005 GMC Canyon Z71 SL 3.5L timing chain VIN: 1GTDS13675
after installing all parts truck ran fine for 500 miles.He then returned with a noise. Found a loose timing chain so replaced the tensioner. Truck ran fine again for 20 miles now the chain is loose again.Talked to the local dealer and they have one with the sa...
1998 Oldsmobile Bravada 4.3L No Start, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: 1GHDT13W3W
After replaceing the crank sensor the truck ran good for the next two and 1/2 months and then conked out again, replaced the crank sensor under warrentee and it lasted the day. now it will not start and i am at a loss what to look at and what to do next.
2001 Pontiac Aztek 3.4L a/c VIN: 3G7DA03E01
hey everybody!i had this new costumer with the mil on at his car,he had a whole bunch of codes so i recomend to do the basic stuff first wich was a tuneup,after that carstart running beautiful and the owner i told him:ok i reset the light for now but ...
2003 Saturn Vue 2.2L Differential VIN: 5GZCZ33D43
We did the axle seal and found the fill cap on the top of the transaxle just do not know how much of this special GM fluid to put in or check it. it is a FWD 4 cyl not sure what type of automatic transmission is in it. all data no help Help Please Thanx Tom

Fixes & Summaries for GM
Fix/Summary Answers
1999 Buick Regal LS 3.8L dash lights VIN: 2G4WB52K1X
You guys where right about the headlight switch assy. Replaced that and all is well again.
1984 Chevrolet Corvette 5.7L reverse lamp switch VIN: 1G1AY0781E
Vehicle fixed, but I never really got to the bottom of it. I have no Idea still where I'd get a new switch if it had been my only option. I wound up finding a guy who parts out Corvettes and he had one that worked. Hopefully I won't run into this again. Th...
1999 Chevrolet Express 1500 5.7L differential VIN: 1GBFG1SR1X
Thanks for all the replies, sorry about the late closing. After doing everything it turns out it must of been bad gears. we put in a complete used differential and everything is now good.
2000 Pontiac Firebird Trans Am 5.7L Spark Plugs VIN: 2G2FV22G6Y
A couple of you guys gave the correct help I needed to accomplish this spark plug replacement. The drivers side was a no brainer, out in the open. The passenger side was buried and a lot of work, required egr removal, air pipe removal, all four coil packs remo...
2003 Saturn Vue 2.2L unwanted ABS engagement VIN: 5GZCZ33D93
Sorry to reply so late, but here's the over all picture - ruled out parking brake cable by disconnecting, lab scoped speed sensors(tested ok), bore scoped RR tone ring(perfect) - all tests point to hydraulic pump. Customer has now declined repair due to financ...
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