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Hard start due to incorrect engine oil on Ford Excursion

Problem overview

Hard starts, long crank time before the start, rough idle, and loss of power can be caused by using the wrong type of oil in this motor. With the engine off, remove the oil dipstick and inspect. If tiny bubbles are present, then the oil is foaming and unable to maintain proper operating pressure in the high pressure oil system.

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Ford Excursion vehicles with this problem

4 model years affected

Average mileage: 109,000 miles

(109,000 - 109,000)

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Submitted by Vehicle Owner · May 29, 2025

Published by RepairPal

Hard start due to incorrect engine oil on Ford Excursion

Problem overview

Ford Excursion vehicles with this problem

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Ask our experts about your Ford.