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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 18, 2014
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Open Help Requests for GM
Help Request Answers
2000 Cadillac Catera 3.0L Poor Idle Quality, Cuts out, Stall, Misfire VIN: W06VR54R7Y
replaced spark plugs, and checked coil pack badly corroded replaced. started rough idle missing on #6 cylinder badly. wont idle, stalls unhook maf vehicle idles, but 6 still missing. limited on tools for this engine. any help would be great using modis. Trouble codes: P0302, P0304, P0306, P0100
2008 GMC Sierra 2500 HD WT 6.6L No Start VIN: 1GTHK23628
As a result of the damaged engine, I replaced it with a good low milage one from a wrecker. Same year also an LMM engine. When the replacement was complete it would crank but no start. Scan revealed code P0642. Low reference voltage 1. Also on cranking I read ...

Fixes & Summaries for GM
Fix/Summary Answers
1950 Chevrolet Fleetline Special 3.8L Camber/Caster
Thank you to everyone for taking time to help. I have old manuals but they were not very clear how it works. Ted gave a good explanation of how it works and then I was able to figure this thing out. I was not the one who restored this car. It was also lowered ...
2003 Chevrolet Suburban 1500 LT 5.3L Pedal drops VIN: 1GNFK16Z23
Got lots of good hints. Philip and Michael both said it sounded like a bad master, and Robert from Pennsylvania had a good suggestion of isolating the master by plugging the output ports and seeing if the pedal still dropped. That is what I told the customer I...
2006 Chevrolet Trailblazer LT 4.2L MIL Lamp on VIN: 1GNDS13S26
Thanks to everyone who replied,sorry it took awhile to get back, customer needed the vehicle and did'nt get it back till yesterday. I was'nt brave enough to try burning the carbon out on an aluminum head, so i tried using some upper end cleaner through the va... Trouble codes: P0411.
2009 Chevrolet Malibu LT 2.4L No Start, Cuts out VIN: 1G1ZH57B39
Well, the car hasn't been back, and I have to agree with those who say ignition switch. I think the MAP code (and I have seen bad GM Map's) was from the fuel shutting off from part of the ignition power going away. Thanx for the replies, be interesting to see ... Trouble codes: P0106 (MAP sensor circuit).
2006 Saturn Vue 3.5L altenator VIN: 5GZCZ63416
thanks for all the help. i put a ac delco alt in so far so good
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