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1990 Isuzu Pickup

Question: Engine chugs and loses power after thermostat opens.

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Dusty-13, Julesburg, CO, January 12, 2013, 13:09

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engine runs great untill thermostat opens up. then begins to "chug" and loose power to the point it dies. BUT! if you shut the key off (while rolling in neutral) and wait a couple seconds and start the motor again it runs great for a minute or so and does it again. i believe its a vaccume problem of some sort. not sure where to start looking.

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Answer #1

goodguy January 12, 2013, 18:23

Master

could be a bad distributor

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Dusty-13, January 12, 2013, 22:06

Rookie

That is possible yet why would it temporarly "heal" its self by shutting off motor and restarting it? Would the vaccume advance change timeing while running and by shutting off engine allow it to reset upon start up?

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goodguy, January 13, 2013, 04:22

Master

the module inside the distributor gets hot and shuts the engine down when it shuts down check for spark

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