2000 jimmy electrical problem - dash and run

Hi All,

Need a bit of guidance on this one.

I have a 2000 Jimmy and am having an intermittent problem
with shutdown while driving ( usually after a longer run )

Engine just dies out like someone shut off the key.
May start immediately, may take several cranks, occasionally requires a "rest" before restarting.

2nd problem. I noticed while driving this bear (belongs to the in-laws) that there seems to be some electrical problems in the cluster / gauges.

On high idle, or a steady throttle pressure, car in park,
the speedo will climb to about 4mph and then drop back to zero.

At a stop, turn signal on. the voltmeter pulses in time with the signal.

Finally, the fuel gauge is all over the place. ( am thinking a bad sender here)

The folks had the coil replaced on a recent trip when the shut down reared it's head. no joy there. still does it.

There are no codes set and i have run a road test with a reader attached. no luck there.

I've been readign back threads, and am thinking this whole mess is involved with the ign harness problem.

I appreciate any guidance you can give!

Thanks !

jeff Beck
Cumberland, MD

Check for lose of spark or fuel pressure when it quits.
Post back results.
Also Check all power feeds into and out of fuse boxes.
A check with a good engine capable scanner may show a problem.
Good luck.
MT