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Prev Professional Automotive Repair Technical Discussions for September 9, 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
2004 Buick LeSabre Custom 3.8L Starter VIN: 1G4HP54K74
Hoping that someone can point me in the right direction. Car was brought in from a local used car dealer after he picked up at the auction. Claims that the car would start with a jump when he bought it. After removing the battery and having it tested (tests go...
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2000 Cadillac Seville STS 4.6L Starting VIN: 1G6KY5492Y
Thanks for looking at this request. The owner of the car states that before bringing the car in, when turning the ignition switch on and going to full crank position, it started right away. Now, when you go to full crank right away, there is no crank at all. A...
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2006 Cadillac SRX 4.6L MIL Lamp on VIN: 1GYEE63A86
Perform fuel pressure test pass. Found no vacum leaks. No running concerns noticed, running good. Only problem found at this time is baro readins out of range. At this altitude of 2400 ft baro should be 27 t0 28 {inhg} live data currently is 22.4 {inhg} replac... Trouble codes: P0171 (Lean bank 1), P0174 (Lean bank 2)
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1995 Chevrolet S10 LS 4.3L ABS Light VIN: 1GCDT19Z0S
Cannot communicate with vehicle control module in ABS Area engine data fine Larry
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1996 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13W1T
This vehicle runs perfect, most of the time. Only acts up after sitting all night. Once fully warmed up and driven for approx. 20 min all symptoms go away. No symptoms after sitting all day, has to be overnight. All fluids full, nothing leaking into the combus...
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2002 Chevrolet Tracker 2.0L timing chain VIN: 2CNBJ18C02
This Suzuki Vitara/Chevy Tracker was towed to our shop 500 miles ago for a failed upper dohc timing chain. The upper chain was snapped and counter sprocket that connects the upper & lower timing chains had exploded. The cylinder head was removed to replace two...
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2007 Chevrolet Impala LS 3.5L pcm/bcm VIN: 2G1WB58K57
Hello GM techs,well I have a good one here. This car drove in to our shop with the complaint of not shutting off along with the wipers also not shutting off. The owner thinks that it may have been stuck by lightning because when he was visiting his son in Ft. ...
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2009 Chevrolet HHR LT 2.4L po449 VIN: 3GNCA53V69
i have this hhr here with a code of po449 i replaced the vent valve and harness with gm parts fuse is good and have 12 volts on red wire to vavle but nothing on the white wire, im a nissan tech and cant find a wire diagram on this sysyem any info would be grea...
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1997 GMC C6500 Topkick C6H042 6.6L blower motor VIN: 1GDJ7H1J1V
Blower motor stops working after running approximately 15 minutes. When it stops I still have 12 volts at blower motor conector on blower motor and the ground is good. I tried disconecting the battery to reset control head but problem is still present. Questio...
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1998 Oldsmobile 88 Royale 3.8L Converter VIN: 1G3HN52K8W
Car came in as a no start . Replaced fuel pump and car starts and runs.Go to road test vehicle and found under light throttle about 10-14 mph seems like torque converter locks up and kills engine. You can accelerate through this and trans will shift and go dow...
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2005 Saturn Ion-2 2.2L transmisiion VIN: EDF345EDC5
hi guys, wanted to know if anyone had this issue before i start to dig. when driving after running a while , the speedo will jump from actual speed to zero, then dash shows "pwr str" . trans stops shifting, speedo stays at zero for a while then may come back o...
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Fixes & Summaries for GM
Fix/Summary Answers
2008 Chevrolet C5500 Kodiak C5V042 6.6L shutdown VIN: 1GDE5C39X8
TURN OFF THE EXCESSIVE IDLE AND INSTALLED NEW INJECTOR PUMP WAS STILL DIEING RANDOMLY. HAD TO BUY GAUGE FROM DEALER TO TEST
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2001 GMC Sierra 3500 SL 8.1L No Start VIN: 3GDKC34G71
So i came in this morning and as i read the replies a few of you suggested to check fuel quality and spark plugs and sure enough i found water in fuel and fouled spark plugs. Put in new set of spark plugs, drain fuel and clean tanks, flush lines and install ne...
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2005 GMC Safari 4.3L No Start VIN: 1GKDM19X25
Ok, here is how it went down. My fluke was showing 12.5 volts on pin 19, (ignition 1) circuit via back probing the pcm connector.Tech2 was displaying 1.2 volts on the data stream. Well the 12.5 volts was back feeding out of the pcm, but no current behind it. T...
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