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Prev Professional Automotive Repair Technical Discussions for January 3, 2013
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Open Help Requests for GM
Help Request Answers
2000 Buick LeSabre Custom 3.8L all lighting
All lighting flickers at all times. Headlights, tailights, dashlights and all interior lights. Charging to 14.0 volts with no accesories on and 13.5 with all accesories on. All connections at battery are good. Any ideas would be appreciated. thank you
2003 Cadillac Escalade 6.0L Windows, Gauges, Locks, Cluster VIN: 3GYEK63NX3
Hello guys, have this Escalade with intermittent no gauges, radio, electric windows, door locks, and multiple lights on dash. Have no communication to any modules. Isolated modules individually at splice 205 with still no communication to pcm. Have power and g...
1994 Chevrolet S10 4.3L No Start
Pickup came in as a no start, first fuel pressure test, 56 psi koeo, good spark. Compression is good. Some threads say that cranking psi needs to be at 60 psi, (wouldnt that be needed to actually flow fuel out of the injector?) took intake plenum off...injecto...
1996 Chevrolet K1500 Suburban 5.7L No Start, slight bump at idle VIN: 3GNFK16R7T
came in as a no start with no fuel pressure replaced pump has pressure was a hard start but got started. and drove fine car got cold and now will start first time, if you turn it off right away (before it gets warm) and try again it is 50/50 on the second star...
2000 Chevrolet Monte Carlo SS 3.8L driverside cv axle VIN: 2G1WX12K4Y
I need to know if there is a measurment from the trans cover to the end of the input shaft, or from the trans cover to the cv shoulder. It looks like it 1/2" to 3/4" to far out. But It may be me. I hit it many,many times with a 5lb soft face dead blow so I hit...
2002 Chevrolet Silverado 1500 4.8L monitors VIN: 2GCEC19V22
Cannot set [...] monitor,mode 6 shows passing everything.O2s working good.heaters turn on & off with scanner[modis].
2004 Chevrolet Corvette Z06 5.7L Clutch VIN: 1G1YY12S64
Hello and Happy New Year. I have this vette here, customer states that in morning first start that clutch pedal sticks to floor. He has to pull it back by hand then everything ok. We have not experienced anything. Car has low mileage and not abused. No air in ...
2006 Chevrolet HHR LT 2.2L Stall VIN: 3GNDA23D56
This HHR came in just 2 weeks ago with a bad misfire. Found valve cover gasket leaking oil into spark plug tubes and a bad coil. Replaced plugs, insulators, coil, and valve cover gasket. It ran great but wanted to stall at idle. I cleaned the throttle body wit...
2003 GMC Yukon SLE 5.3L Coolant Loss VIN: 1GKEK13T43
This gmc is in the shop with a coolant loss issue of a gallon evry 2 weeks we found coolant in the intake manifold and i dont see any coolant passages has anyone come across this before
2003 GMC C5500 Topkick C5C042 6.6L speed governed at 35 VIN: 1GDE5E1173
This truck has not been running properly in over a year. The original problem was failed injector seals causing a running issue. It was parked for about a year before repair. After replacing injector seals it ran poorly but would get up to highway speed withou...
2008 GMC C4500 Topkick C4V042 6.6L Hesitation, Surge, Cuts out, Stall, MIL Lamp on, Low Power Mode VIN: 1GDE4E1988
This truck has an intermittent concern that is getting a little bit worse as time passes. It has been activating a DTC code P0101 for a MAF performance problem. A new MAF sensor and a new OEM air filter has been installed. While on a lengthy test drive with th... Trouble codes: P0101 (Mass Air Flow Sensor Performance)
1996 Oldsmobile LSS 3.8L Elc/Misc VIN: 1G3HY5212T
Hi, This is a customer of mine who just recently had to jump start her car 1 morning and again the next. She brought it to me and I hooked up my meter in series with the neg cable and found a .547 mA draw. Starting in the engine bay and pulled 1 fuse at a ti...
1998 Saturn SL2 1.9L No Start VIN: 1G8ZK5271W
Every 5th time or so the car will not start unless you hold the gas pedal to the floor then will start no codes doenst smoke at all installed new temp sender and ignition switch also no change runs great once it starts thanks for any help
2007 Saturn Ion-2 2.2L timing chain VIN: 1G8AJ55F57
We have to remove the cylinder head for a possible burnt valve and need to know if the T chain can be left in the car and still pull the head, also any info on where to set the t chain marks as we are not comfotable with the way all datta has it explained

Fixes & Summaries for GM
Fix/Summary Answers
2007 Cadillac Escalade ESV 6.2L Heated and Cooled Seat VIN: 1GYFK66807
Well, I have had alot of good replies, all dead on with the usual culprits in this situation. I have not been able to get the vehicle back in to the shop, so my time is up and I have to close my request. I think I will go with Marsden's suggestion when the v...
1995 Chevrolet K1500 5.7L Excessive Emissions VIN: 2GCEK19K3S
2002 Chevrolet Trailblazer LS 4.2L valve train VIN: 1GNDS13SX2
This one is fixed.Found the cause of problem was very old gas,caused sticky film on valves (Intake)causing them to stick,causing rockers to pop off only on intake side.Replaced head,(due to a bent valve)flushed out old fuel(had been sitting for over a year)bef...
2005 Chevrolet Tahoe LS 5.3L auto climate VIN: 1GNEK13T45
happy new year too all techs,I want too thank all of you for your response,for sure thanks to dan oneil the site you gave me was a big help.After checking things out found left door acurator and right recirculation aculator were inop. because of the cost of re...
2006 GMC Sierra 1500 SLT 5.3L Low-side pressure service port VIN: 1GTEK19T46
OK, so those of you who answered "Ain't got one" were the most correct. The part number for vehicles that ARE NOT equipped with a low-side port from the factory is [...]. The part number if you WOULD LIKE to correct that bit of madness and have a low-side p...
2006 Hummer H3 3.5L rear main VIN: 5GTDN13L46
vacum hose in the back of intake was replace with regular hose by customer and was pinch.we replace hose with dealer molded hose no more leaks thank you guys for help sorry took so long to close post
2002 Oldsmobile Intrigue GL 3.5L MIL Lamp on
I replaced both side shutoff valves and the AIR system is working perfectly. Thank you for the replies. Trouble codes: P0410.
2009 Pontiac G6 GT 3.5L starting VIN: 1G2ZH57N59
Oddly enough, this vehicle ended up having 2 problems that manifested at the exact same time. The first was the bad engine ground that dropped the TCM and wouldn't allow scan tool communication. After changing the ignition switch with no result, i started chas...
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