1977 Mercury Cougar XR7 from North America - Comments

I bought my cougar for $500 bucks so I wasn't expecting a jewel, but I was wrong. The main lingering problem I've had is my dash lights don't always work.

I had to replace the alternator after about 8,000 miles.

The drivers door power window just stopped working a few days ago.

But besides that, I've had no other problems.

The car has a FMX transmission, but I've never heard of it--- could anyone give me some information on it?

I couldn't ask much more from my cougar. It Starts every morning rain or shine with no problems, and rides down the road like a dream. The 400 6.6 engine has plenty of power even though the highway gears keep it bogged down on the take off, but I believe this car has no top-speed. The FMX transmission pulls like a dream. The engine has 145,000 miles and still holds 50lbs. oil pressure. This car couldn't have been manufactured much better!

Years ago my parent owned a 79 Cougar, and the same thing happened to it;s power window. As it turns out, water was getting to it, and shorted it out. They spent a lot of money and had it fixed, but water still got to it, and it stopped working again.

Jim.

I have a 1977 and a 1979 xr7 cougars and I have never had window problems with the power windows, but I have problems with the fmx trans and it had a 351 windsor in it my 1977 is a 400 and had no problems with the fmx trans my? is where can you get after market parts and if any one whats to sell a couger cheap for parts please let me now at t60606@yahoo.com thank u.

Well, I own an 1976 mercury cougar, and it is pretty reliable, the biggest problem with it is the gas mileage. The only big problem I have had is, don't drive it a lot on a hot day, I had a lot of errands to run one day, and about half way home that day it overheated real bad, the starter blew, which wasn't too bad, it only cost me about $30 dollars or so, but now that I finally got it running again, there is a loud banging coming from the engine, sounds like a piston rod, I still have yet to take the engine apart and get it looked at. All of this probably has to do with the 260,000 miles on it, so at that mileage you can't ask to much more than to have the car run.

The FMX trans I hear was a trial and error. They were in the 1977 and 1978 and 1979 Cougars. They were more trial to see how they worked with the small block motor. I have gone through three of them, but found out your best replacement is a C6 trans; that's what worked for me. I hope I could help. If you want more information, I'll look more up to see what I can find.

I have a 76 pretty much the same car with different sheet metal. Never had a problem with the windows. I have the C6 trans. I like this trans. I think it is the better of the three offered. C6, C4, and FMX.

145,000 miles and still holds 50lbs. oil pressure - That 400 was well-cared for. Most of them expire from low oil pressure. Good engine otherwise.

I've owned my 77 Cougar XR7 for about 12 years. Never been driven in snow as I live in the rust belt.

Mine has the 351-m with a c-4 trans I rebuilt after popping 3 of them. I've got the floor console & bucket seats, red with white interior.

Mine doesn't have factory air in it. Is this rare, I've never seen another one like it on any Ford/Mercury product of that era. If anybody has any feedback about that, would you please e-mail me at pysclone@yahoo.com

Thank-you.