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Mercury Cougar Engine Questions

153 messages,  Last post on May 19, 2012 at 6:40 AM

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What is this discussion about? Mercury Cougar, Engine, Coupe

Messages Page 8 of 16

#71 of 153 2002 mercury cougar not working by vinnyg06

Jan 31, 2010 (10:41 am)

hello my friends mercury cougar overheaded when the thermostat was put on backwards. sadly she kept driving it until it stopped on its own. when i put the diagnostic code reader on the car it said that cylinder number 2 was misfiring. i pulled the spark plugs out to see if they were damaged but it turns on they are in great shape the only thing is they smell and feel with gasoline. i had a mechanic stop by and look at the car and he said that the head gaskets are proubly just shot out and that it needs a new engine. my question for all of you is do i really need a new engine or can i just buy the head gaskets and replace those...all i am missing is combustion, so would that fix the problem???

#72 of 153 Overheated 2002 cougar by vtraudt

Jan 31, 2010 (12:48 pm)

I assume the engine won't start at all? Otherwise, white smoke from the exhaust would indicate a blown head gasket (that's what we had).
Now that we have done it (2 times, actually), I tend to say it is not TOO big of a job: intake, upper intake manifold, lower intake manifold, motor mount, power steering, AC, crank pulley, alternator (?) (and maybe other stuff I forgot) have to come off to get the cylinder heads off. While off, we had them flow tested and 'squared' (just in case they got warped), and a valve job done. I forgot what the shop estimate was, but my guess is $1,500 or there about.
 
We just come off an engine swap, which is not that much more work!

#73 of 153 engine no start by aussieecho

Feb 09, 2010 (7:33 pm)

if the cougar 2000 sits for a few days it might not start. But sometimes it will. Lights and battery look good, cranks nice and easy . Almost like it has no fuel. Last yr the fuel pump was replaced under recall . So dealer is hesitant to do it again. They say it "might" be the idle auto control valve. Can't see why that would prevent starting > any ideas ?

#74 of 153 Overheated and beyond by mdr93camry

Feb 16, 2010 (1:23 am)

I had driven 4 miles when my 1993 Cougar overheated & started to smoke very badly, also the heater went to cold air. Someone said the therm. was broken into & then replaced it. Last night the car started fine got about 10 miles and done the same thing. I left it on the road, went to move it later but as soon as it started up so did that knocking sound. Would someone please tell me if there is any hope for my car?

#75 of 153 Re: no spark [benceturtle2] by icanfixitnat

Apr 11, 2010 (6:09 pm)

Replying to: benceturtle2 (Aug 03, 2009 9:51 am)
Hello there! I just wanted to know if you ever got your cougar engine to fire? I'm having the same problem too.

#76 of 153 99 Cougar no spark by icanfixitnat

Apr 11, 2010 (6:25 pm)

I recently changed engines in an 1999 Mercury Cougar. It has no spark. Can anyone give me any pointers on what to check?

#77 of 153 Re: 2000 Merc Cougar & Check Engine Light/Issues [dahltr] by vtraudt

Apr 14, 2010 (7:20 am)

Replying to: dahltr (Dec 15, 2009 3:05 pm)
If you haven't fixed your issue: Your misfires could come from the spark plug wires. On NECO forum, they advise to use the original wires (expansive), but for me it also worked with the less expansive Duralast (Autozone).
 
That would be the first (and easy) thing to do, since you already replaced the spark plugs (hopefully using the double platinum ones).
 
Did you also get codes for running lean (on one or both banks)?

#78 of 153 Re: 2000 Merc Cougar & Check Engine Light/Issues [vtraudt] by dahltr

Apr 14, 2010 (2:34 pm)

Replying to: vtraudt (Apr 14, 2010 7:20 am)
It actually was the spark plug wires - we replaced them all and it fired up like new!

#79 of 153 brass fileilngs in oil pan by dcrall

Apr 16, 2010 (8:07 pm)

H just pulled the oil pan on a 1999 mercury cougar 2.5 v6 dohc 99k mi found a amount of sludge two parts of the timing chain guide, plus some brass fileings .. pulled a rod bearing good babbit what in the engine could be wearing ? brass?

#80 of 153 2002 Mercury Cougar wont start by cougar21

Apr 21, 2010 (2:51 pm)

My daughter's 2002 mercury cougar has been running fine until the other day, it just died and now wont crank at all. It doesnt turn over at all. We put a new starter on it, thinking that may be the problem, and it has a new battery. All of the lights come on and the door dinger still dings. Not long ago had a bucking issue and we replaced all of the spark plugs and it has been running great ever since, but now this problem...Please help, anyone.

Messages Page 8 of 16

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