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Prev Professional Automotive Repair Technical Discussions for January 19, 2009
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Open Help Requests for GM
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1997 Buick Park Avenue 3.8L Unknown VIN: 1G4CW52KOV
thanks in advance. mostly work on asain autos this is my personal car with no history of repairs. I started up, and car ranned fine for about two mins. then it cut off. I tried to then restart the car ,and the engine seems to have locked up. Then i removed the...
2004 Buick Rendezvous CX 3.4L Security Lamp on VIN: 3G5DA03E44
The security indicator lamp in the DIC remains on at all times with the vehicle running. There are no codes in any of the processors such as the BCM PCM, IPC and VTD system. This vehicle does not have content theft deterrent. When viewing the data in the Passl...
2004 Buick Rendezvous CXL 3.4L No Start VIN: 1BGHYTRF54
Attention all GM Masters, I need a little help on this one... I tow this buick in from a buick dealer as a favor to a friend of mine (always a mistake).. customer complains of intermittent no start.. dealer says it needs a crank sensor. I tow it in and of cour...
2006 Buick Rainier CXL 4.2L Rear wiper VIN: 5GADT13S26
This Buick Rainer came in with no rear wiper operation. Printed out fuse data and checked. All ok. Pulled rear liftgate panel and checked and found no power at motor Disconnected motor and ran aux power and ground to it. Still would not run. Gave up for a whil...
1999 Cadillac Seville SLS 4.6L fog lamps VIN: 1G6KY54927
hello cadillac guys i have a 99 seville sts the fog lamps will not work all other lights work fine i cant get any power to the fog lamp ralay but the fuse is good. i dont have a very good wiring diagram of this system mitchell doesnt give much info on these. a...
1993 Chevrolet Cavalier RS 2.2L Stall VIN: 1G1JC144XP
Hello, This cavalier has an intermittent stalling problem usually when it's cold or shortly after start up. No codes are stored. Tapping on the crank sensor caused the engine to react, so it was replaced with a new Delco sensor. When the customer picked the ca...
1997 Chevrolet K1500 5.7L No Start VIN: 1GCEK14R2V
This vehicle came in 1 time for a bad fuel pump. Replaced sending unit with pump do to age. Since then it has been back 2 times in the last 6 months needing a new sending unit. The the gray wire is brown and connector is melted at sending unit. This is the wir...
2002 Chevrolet Silverado 2500 HD 8.1L cold noise VIN: 1GCHK23G23
this truck has a wining coming from front area of the trans 1st thing cold.fluid level is sounds like system has air in it ! right after start up fluid appers to have air in it !no codes stored. trans operation is good , but for about 3 miles sounds li...
2004 Chevrolet Trailblazer LS 4.2L Surge, Cuts out, MIL Lamp on VIN: 1GNDS13S24
Customer brings this trailblazer in on a trailer his expanation is he was on the interstate about 65 mph the engine light came on but ran just fine. went another 15-20 miles and vehicle lost all power wont go over 5 mph. codes are po1171 system lean on acceler... Trouble codes: P0128, P1171
2004 Chevrolet Silverado 2500 HD 6.6L Fuel Gauge VIN: 1GLHK23184
The customer came back again today. And it seems the gas gauge reads backward. It came in and he said the truck was full and the gas gauge was on 1/4. My first thought was the customer had filled the tank up while the truck was running. So I took the truck and...
2004 Chevrolet Cavalier LS 2.2L water pump drive VIN: 1G1JF52F94
not too familiar with chain drive system for balance shafts and cam drive chains.Does anybody have any short cuts or word of caution for me to beware of?Any special tools needed?Havent taken apart yet to find out root cause.Has anybody been there done that?If ...
2004 Chevrolet Tahoe LS 5.3L speedometer VIN: 1GNEK13V64
Hello fellow teches need some help on this one this taho came with problem with speedometer . speedomter jumping in all speed even when car is in drive full stop you can see the speedo jumping at times . I have replaced speed sensor and speedometer unit with r...
2006 Chevrolet Equinox LT 3.4L cooling system VIN: 2CNDL73F66
Hello...I have a problem with this truck.. I have blowin out the heat core and did a coolant flush..Still no heat. All the duct doors are working and the T-Sat and fans are working.. Any ideas plase help...
1995 GMC K2500 Sierra SL 5.7L not charging VIN: 1GTK24KXSE
the transmission was just replaced and now the battery light is on and there is no power to the single wire plug on the alternator. I would not think the two would be related. What powers the single wire on the alternator? Thanks in advance
1997 GMC Savana 2500 5.0L Steering VIN: UI87654390
this trucks power steering failed instantly with no warning whatsoever as if it threw its belt... after a quick look fluid level good and serp belt good any ideas???
2002 GMC Envoy SLE 4.2L Unknown VIN: 1GCMK46MD2
Thanks for any help in advance. This truck is my dads. Its a 2wheel drive envoy with air suspension.It makes a vibration noise/buzz between 60 and 65 mph.I pulled the driveshaft and felt the ujoints, I didnt feel any binding nor did i see any rust discoloratio...
2003 GMC Sierra 2500 HD SLE 6.6L Unknown VIN: 1GTHK23183
First thanks for reading this.This truck has had an intermittent parasitic battery drain for over a year.My customer replaced the batterys then brought it to me.Amp draw is around 16 millamps it will vary some.The truck has sat 5 weeks and started fine.Sometim...
1990 Oldsmobile Cutlass Supreme 3.1L Hesitation, Surge, Cuts out, Stall VIN: 1G3WH14T5L
remove coolance level sensor connector, no change. when engine hot, it flunctuate alot. replace iac did not help. code 35 for iac error,and can not clear code. what have i miss. thank advance for the help thoa Trouble codes: 035 (idle air conntrol error)
1993 Oldsmobile Cutlass Ciera 3.3L Excessive Emissions, EXCESSIVE NOx VIN: 1G3AG55N4P
to all who read this posting - thanks for any help or suggestions regardless of outcome. i have exhausted all of my options here. have looked thru alldata and mitchell and found nothing. have looked thru fix-database here and have only found that so far no one...
1998 Oldsmobile Bravada 4.3L fuel gauge VIN: 1GHDT13W0V
When the turn signals or 4 ways are used just the fuel gauge jumps been over all related grounds replaced fuel gauge buffer
1999 Oldsmobile Bravada 4.3L No Start VIN: 1GHDT13W9X
well I have another s - nightmare.this is an intermitant no start.As you can see we've been dropping parts in it and still have'nt found the problem. theres no pattern to it its just a whenever thing. it appeared to be flooded one time ,I put new clean plugs i...
1997 Saturn SL1 1.9L Misfire VIN: 1G8ZG5286V
installed reman engine because old one was knocking(rod) got done and test drove. ran fine ,turned around to come back the check engine light came on. got back and scanned it had the misfire code, checked the counters found # 1 & # 4 missed exactly the same am... Trouble codes: P0300
2002 Saturn SL1 1.9L Poor Idle Quality, high idle VIN: IG8ZH5287Z
car came in with misfire codes, car was tuned up plugs and wires. car left came back weeks later with misfire codes tech found intake leaking near cyl 1 verified with smoke machine. He replaced gasket shiped car. car now has an intermittent problem it races ar...
2003 Saturn Ion-3 2.2L No Start VIN: 1G8AL52F33
veh has no start with click @ starter solenoid, problem started when cold out, but always started until lately. replaced starter, new saturn ign switch, did relearn procedure 3 seperate times. lost odom reading and light flashed pwr str, light is now out. ran ... Trouble codes: B2995 (b2960-), B2960 (b3033-), B3033
2003 Saturn Vue 3.0L No Start VIN: 5GZCZ63B73
03' Saturn View intermittently cranks over and does not start. Concern may happen 1 or 2 times a day and will always restart after vehicle sits. It may sit for only 1 minute before starting. By the time fuel pressure gauge is hooked up and RPM signal is scoped...

Fixes & Summaries for GM
Fix/Summary Answers
2006 Cadillac STS 3.6L Front Brakes VIN: 1G6DW67736
Thanks for all the replies and help. Sorry it took so long for the response. It was the lower control arm bushings that were crunching during braking. Replaced bushings with GM Lower Control Arm Repair Kit and all is well. Thanks again for all the replies.
1997 Chevrolet Express 2500 5.0L No Start VIN: 8976YUHJ89
first of all i would like to thank gm engineers because with alittle effort i manage to practically pull the entire fuse panel out of the engine compartment and was able to inspect all sides of it... backside of the ecm b fuse looked good... so i crimped the...
2001 Chevrolet Blazer LS 4.3L Unknown VIN: 1GNDT13W21
All the tips were helpful thanks to everybody but it was a bad booster
2004 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13S14
diagnostics showed that the throttle body was bad customer has aftermarket warrenty co. so it went back to dealership Trouble codes: P0068 (map/maf-throttle position airflow correlation), P0128 (coolant thermostat), P0172 (fuel system too rich bank 1).
2004 Chevrolet Tahoe LS 5.3L oil pump VIN: 1GNEK13Z94
Thank you to everyone who replied.I apolgize for not responding sooner,but i knew there had to be more to this then having to use synthetic oil.with the -20 and -30 temps we just had last week the answer was there. after having another 5.3 come in for no oil p...
2004 GMC C6500 7.2L forward gears VIN: 1JD56C1C64
it turned out to be a defective selector range switch and that fixed up the forward gears thank you to every one for their replys
2004 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK231X4
Thank you for all that replied. The fix wound up being a small hose at the fuel sender/module sucking air. Repaired the hose and reinstalled tank. Truck is operating normally now.Thanks again for the helpful replies. Mike
2004 GMC Envoy XL SLE 4.2L Engine VIN: 1GKDT13594
Thanks to everybody who replyed. I replaced all lifters on that truck,which took care of the problem.
1995 Oldsmobile Aurora 4.0L dash lights VIN: 1G3GR62C5S
ok, thanks for all of your replies. I decided to tackle this vehicle. I thought about taking your advise and rolling it into the lake but the customer wase'nt to excited about that idea. I did find a loose connecter at the back of the instrument light bar that...
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