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Prev Professional Automotive Repair Technical Discussions for February 7, 2013
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1992 Cadillac Seville 4.9L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy VIN: 1G6KY53B6N
i have cyls 3,5,2,4 dead according to contribution test. car is bogging, misfiring, just flat out wont run decent enough to get a timing light to show good reading. this one is really getting me. i have good fire, fuel, compression and a good cat. please help ...
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2001 Chevrolet Tracker LT 2.5L Flexplate VIN: 2CNBJ63491
Veh. has had engine change at other shop, cust. say's engine is same year. Had noise in engine flexplate cracked, not around bolts but in slots below start ring. Could not find new one with dealer or parts store. Cust. found two at salvage yard, were same. Rep...
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2002 Oldsmobile Bravada 4.2L lower vent VIN: 1GHDT13S72
we have replaced the blower motor and resistor to start because blower wouldn't operate. Vehicle returned with a clicking noise under dash and we replaced the mode door actuator. Vehicle will not switch to feet. Place mode on your face and it blows lightly and...
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1993 Pontiac Grand Am SE 2.3L Surge VIN: 1G2NE5431P
Vehicle intermittently has a mid-range (3000-4000 rpm) surge on moderate to hard acceleration. Replaced fuel filter and spark plugs about 2 weeks and 250 miles ago for this concern, plugs were worn and fuel filter was completely plugged. Didn't surge for a few...
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2007 Pontiac Vibe 1.8L No Start VIN: 5Y2SL65887
This Vibe quit on the highway and was towed in. No crank, no check engine light and no communication with the PCM. Battery is fine. Problem found to be blown 15 amp AM2 fuse in the fuse box under the steering column. Replaced fuse and engine started and all se...
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2002 Saturn L100 2.2L No Start VIN: 1G8JS54F12
Vehicle will start and run if sitting for 12 hours until turned off- will not resart- cranks starts for 1 second and stops as if in theft mode. Security light will come on with koeo for bulb check then goes out but will flash very fast for one split second (ba... Trouble codes: B2957 (Data shorted to ground), B2960 (Passlock cylinder incorrect), P1599 (Engine stall or near stall), B2623 (u1000-), U1000 (u1096-), U1096 (testing and results)
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2008 Saturn Outlook XR 3.6L Misfire VIN: 5GZEV237X8
Vehicle came in for what the customer discribed as a vibration or shutter.Test drive felt like a transmission shutter checked for codes non found in trans or power train modules next test drive felt like an engine miss hit on Identifix found 1 with same simpto...
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Fixes & Summaries for GM
Fix/Summary Answers
2004 Buick Regal LS 3.8L Climate control VIN: 2G4WB52K64
This is my son's vehicle we bought used, someone had previously installed stereo equipment, radios etc. They tied into the power side of the Blower controller fuse, the added amperage draw burned the fuse panel power supply nearly in two, resulting in 10V sup...
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1995 Chevrolet K1500 5.7L Brake Lights VIN: 2GCEK19K8S
Thank you to all for replies and suggestions, customer needed vehicle back for weekend, during which he repaired some wires to an aftermarket topper light and he states has not had brake light concern since. I have not been able to look at that wiring to see h...
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1999 Chevrolet K1500 Suburban 5.7L Cuts out, VIN: 3GNFK16R1X
Thanks for the replies, I do not have an answer as to why the difference from the original type sensor to the new. I have dug the labscope out and am trying to get in the habit of using it more often, if I had not put the scope on it I would never have seen th...
4
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDS13S44
This one is fixed and gone - thanks to Josh from Illinois. He was right on the money. I assumed the relay for the air pump was good since I could hear and feel the pump running. But in fact when I disconnected to air line from the pump to the check valve th... Trouble codes: P0410 (Secondary air injection system).
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2000 Saturn SL2 1.9L Ignition Lock Cylinder VIN: 1G8ZJ527XY
Finally resolved this one, I was putting in the cylinder correctly, the reason it wouldn't turn is because it was a faulty new part. The old cylinder would intermittently lock up but worked most of the time, when it was installed it went right in and turned m...
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2007 Saturn Aura XE 3.5L # 3 Injector VIN: 1G8ZS57N67
Thanks every one for the input on this vehicle, have not had time to have customer drop off and leave with us, full shop,,,but will keep you all posted on reflash of computer and possible injector swap, remember only happens on cold weather days,
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