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Problem for Chevrolet 1990 Lumina

Lumina still won't start until engine cools down for an hour

By dmalenius571 on Aug 25, 2009

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Car runs great until you turn off the ignition after running it for about half and hour. Then it just turns over but won't start until you let the engine cool for about an hour. Then the car fires right up.
Replaced the oxygen sensor and problem was still with us.
Replaced the ignition module and that didn't help.
Any ideas on the next move.
I'm thinking bad or weak fuel pump.

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Solution #1

posted on Aug 25, 2009

benstable

Rank: Wiz Chevrolet

Expert
Rating: 83%, 215 votes

The coil pak is probably bad.
you need three things to start air fuel and spark. You turn it oven and it wont run,if the fuel is the problem try this.spray a little 2+2 carb cleaner down the throttl body if it runs ,fuel is the problem.
It can also be as simple as the ECM the computer could be going bad.

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