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1994 Mercury Cougar Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1994 Mercury Cougar

1994 Mercury Cougar Problems

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.

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.

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.

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1994 Mercury Cougar Questions

I can't get my socket down to grip the plugs, since I read something about a stupid cover for a '95 & a '99 merc cougar, I'm wondering if I have to deal with this - just to change spark plugs.

I'm using extensions and have done hundreds on tune ups, but these dang plugs never seem to loosen to be removed.
The plug holes are so deep so you only see the tip of the plugs by leaning very far over the engine. It's my daughters car a 1994 Mercury Cougar V8.
Thanks.

The oil was very low. Should I be out of oil again because I am hearing a high pitched sound coming from
the motor that I ussually hear when it's out of oil.
What could the problem be?
The last time it was low on oil, I didn't hear that sound.

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1994 Mercury Cougar Reviews

Engine blows head gasgets around 100,000. Transmissions acts like you go over speed bumps. Change trans.oil and aid slick 50 will fix problem. Trans downshifts at strange time. Speed sensor on outside transmission goes bad. $200 part on dealer. Suggest go to pick a part and buy a couple for $5. 15 minute job to replace. 94 car had a mechanical update. Most very bad. Buy you a 93 same body bette...

What about the trans. I have a '94 Merc. Cougar and the tran. will drop back a gear or two when in Drive....Help Me....

I need help on find air condtioner filter on it recharged it but the filter is plug can't find it does anyone know where it is.I love my car too.

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