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Why would the engine stall when it heats up in a 4WD 1991 Ford Explorer?


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Wiki User
2005-02-05 12:31:05
2005-02-05 12:31:05

The O2 sensor is BAD and needs to be replaced. Whats happening is when the engine is cold the sensor sends an air to fuel mixture signal to the computer that satisfys the engine's requirements at start, but when the engine heats up the sensor then send a leanner mixture (To much Fuel) that the engine can't burn off so the Sparkplugs get wet and misfire stalling the engine.

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Fuel Pressure Regulator - would do that -

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does my 1996 pontiac ga stall out in park

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yes once the ignition control module heats up it would cause the vehicle to stall. usually after it cools down the vehicle will restart again.

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The thermostat control engine temperature. If it fails the engine can run hot or cold - that would happen long before over-heating caused the engine to stall.

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Why would it stall or almost stall in Reverse but not in Drive? How long since it's received a tune-up and thorough check-up? How is the compression?


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