2003 H2 Intermittently Starts

[Suzie]

Wow, what do you know? Mike Sabaresse at Tustin Hummer is having the PCM module replaced. And it appears to be under the emissions warrantee. I will update again when results are in. I am still shell shocked at what it took to get a Hummer dealership to finally consider what my local mechanic said was the problem all along.

As far as a new ignition switch....well, it never needed one. Now it has it's third one in 77,500 miles.

And that throttle body cleaning....well, it doesn't appear to have needed that. But at least it is clean now.

It will be interesting to see how many problems will clear up after the PCM module is replaced.

Oh, and Mike Sabaresse said he will be racing a white H1 in the Baja 1000, which I will watch for from a housetop in BOLA. (Now that it looks like my Hummer will be fixed in time.)

[dochummer]

I still don't get why you paid for all the xtras. I'd be pissed, and asking for my money back. Sounds like the mechanics were just giving you the run-around and milking you because they knew you'd pay...

[mdoyle]

I've been following this thread since I have a 2003 with very similar problems. Starting is intermittant and sometimes takes 3 tries. It doesn't matter how long you let it crank, it won't start until you cycle the switch again.

I'm going to investigate the emissions warranty on the PCM Module, but I just turned 100K so it might be too late.

[tower]

Suzie,

I'm glad it will all work out fo you. I knew Mike would hook you up!

[HUMTECH]

General Motors Warranty Coverage:

? For trucks with light duty or medium duty emissions:
- For 3 years or 50,000 miles, whichever comes first: If your vehicle fails a smog check inspection, GM will make all necessary repairs and adjustments to ensure that your vehicle passes the inspection. This is your vehicle emission control system performance warranty. If any emission related part on your vehicle is defective, GM will repair or replace it. This is your short-term emission defects warranty.
- For 7 years or 70,000 miles, whichever comes first: If an emission related part listed in this booklet specially noted with coverage for 7 years or 70,000 miles is defective, GM will repair or replace it. This is your long-term emission control system defects warranty.
- For 8 years or 80,000 miles, whichever comes first: If the catalytic converter or vehicle (powertrain) control module is found to be defective, GM will repair or replace it under the Federal Emission Control Warranty.
? For heavy duty gasoline engine vehicles, the emission warranty period is 5 years or 50,000 miles, whichever comes first.

Any authorized HUMMER dealer will, as necessary under these warranties, replace, repair, or adjust to General Motors specifications any genuine GM parts that affect emissions.
The applicable warranty period shall begin on the date the vehicle is delivered to the first retail purchaser or, if the vehicle is first placed in service as a demonstrator or company vehicle prior to sale at retail, on the date the vehicle is placed in such service.