1997 Chevy Lumina Car won't start when hot

THUMPER106

MEMBER
1997 CHEVROLET LUMINA
6 CYL
FWD
AUTOMATIC
103,000 MILES

I have a 1997 chevy lumina that had run hot, I replaced the water pump and thermostat, it continued to run hot so I removed the thermostat altogether. But my main problem is I can start the car and drive approx. 4 1/2 miles to the store sometimes when I cut the car off it will not restart it acts like the battery is dead if I leave it and let it cool for about an hour it will start right up CAN ANYONE HELP? It doesn't do this all tie time thank you

Wednesday, September 17th, 2008 AT 1:50 PM

1 Reply

RENAUDTN

MECHANIC
636 POSTS

When you say it acts like the battery is dead, do you mean the starter doesn't crank at all, or it cranks but it doesn't start?

If it cranks but it doesn't start, I would start by checking for sparks when your engine is hot and you can't start the car. If you don't have sparks, I would suspect a bad cps (the sensor goes open at high temp which 'kill' the car until it cools down). It could also be a bad ignition module and/or ignition pack.
If you do have sparks, let me know, and I'll think of something else.

Now, if the starter doesn't crank, check for voltage at the starter, and let me know what you get.

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Wednesday, September 17th, 2008 AT 10:51 PM