Engine Misfires, Check Engine Light On on Mercury Marauder

Submitted by Andy Y · May 29, 2025
Published by RepairPal

Problem overview

Low compression caused by leakage from exhaust valves can cause the check engine light to illuminate indicating an engine misfire. The cylinder head will need to be rebuilt by a qualified machine shop if possible. Please note that this problem will require careful diagnosis because misfires can also be caused by basic ignition components like spark plugs, coils, etc.

5 people reported this problem
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Mercury Marauder vehicles with this problem

Average mileage: 128,000 miles
(128,000 - 128,000)

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