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crazy-making intermittent fault ?! Woof !!!
Posted by vtsnaab (# 26) (more from vtsnaab) on Tue, 10 Apr 2012 13:21:01

Hi Folks.
I was on my way to work, stopped at the store, came out, and my beloved '94 Aero started right up as usual - then quit a few second later.
Uh-oh.
Tried again - it cranked & shivered but didn't 'catch'.

Listened for fuel pump sound...none.
Waited & re-tried (twice), same result.
Called for a flatbed to come get me & it.

Sat & waited, and when I saw him entering thought to make some light so I'd be easier to pick out - and as a knee-jerk reaction cranked the car...
And it started.

Got out & met the operator & told him - but wasn't sure because since my last fuel pump change (~1 year ago, a used spare) the fuel gauge has been stupid so I go by the trip-meter for a better idea of fuel level, and it was almost time to gas up.

He suggested following me to the station about a mile up the road...and this we did.
Put in a few gallons - went to pay - came out - cranked - no start.
Had it towed home.

Weather allowing I've cleaned out the hatch, getting ready to install another good spare.
Since more than a day has passed - went out & turned the key on and fuel pump noise was evident => started & ran it a few minutes.

SO:
There's quite a list of 'possibles...ign switch, CPS, FP relay, pump itself and I'm sure there's others besides.

The question:
How to isolate this intermittent problem MINUS multiple tow-jobs driving me & anyone else nutz ?
Help, please ??!

Thanks.

mark
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