1994 Mercury Cougar Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1994 Mercury Cougar
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1994 Mercury Cougar ProblemsCheck Engine Light on Due to Clogged EGR Passage in Intake Manifold
The Check Engine Light can illuminate with codes due to the lack of EGR (exhaust gas recirculation) flow caused by the intake manifold passage plugging up with carbon and oil. The EGR valve has to be removed and the passage cleaned thoroughly. Partial restriction of this passage can cause Smog test failures for the NOx emissions without causing a drivability symptom.
White smoke coming from the exhaust could indicate that a head gasket has blown or there is a cracked cylinder head. Our technicians tell us that removal and inspection of the cylinder heads will be required to confirm a crack is present.
While steering, if you hear a clunk or a rattle, or if you experience premature tire wear, this could indicate the inner tie rod ends are loose or worn and will require replacement.
1994 Mercury Cougar QuestionsI be changed injectors but still loosing fule (1 answer)
Smoke from exhaust due to excessive gas going thru
MY COUGER IS AN XR7 MODEL