Out of alignment. Have the alignment checked. Could be a broken tire or an allignment problem, if its the tire rod your tire will move easily when jacked up and off the ground this is bad and could result in your tire falling off... ouch WRONG WRONG WRONG... ITS BECAUSE YOU CANNOT ADJUST THE CASTER OR CAMBER...YOU NEED TO BUY A KIT...AND THEN GET IT ALIGNED...
The primary cause for jerking on a 99 Mercury Cougar is the engine not getting enough fuel. This can be a sign of a clogged fuel filter, bad fuel pump, or clogged fuel injectors.
you dont need to cause it has a factory tachometer
probably the fuel pump?
I had the same problem in my 1999 Mercury Cougar, I replaced the flasher located in the blinker assembly. It was very simple to do. Flasher cost about $10
The most likely cause is a dirty fuel filter that starves the engine.
my son bought a 1996 cougar that felt like the transmition was slipping and we had the transmission flushed and it fixed it.
the ignition timing set wronge. BAd accelerator pump in the carburetor
it is in the manual says when this happens it is 02 sensor and if it is flashing you have a miss in your engine which can cause damage.
check the recalls for the 99 mercury cougar!! it includes a recall on the throttle cable...
The gears in the speedometer are stripped. If the odometer is working then you have input.
The mercury inside the fluorescent bulb is not enough to cause any harm, it has very little amount of mercury , you can breathe it with no effects at all.
* No power steering fluid in reservoir * The power steering pump is not operating
Your intake manifold probably has a crack in the water jacket.
the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.
aerodnamics are such that there isn't much airflow past the alternator and high loads cause them to overheat
cut wire between the dash and radio and fuse box.
Check the fuses and the relay that controls the door locks. A power loss is the most likely cause of the problem.
I just changed fuel filter,pump,sparks plugs and wires on mine and it runs great!
a cylinder misfire might be happening. check your plugs and wires for bad connection
Its a sign that either your battery or alternator is starting to fail.
fluorescent bulbs have mercury in them. There are heaters at the ends of the bulb that vaporizes the mercury to allow the light to be produced ( the fluorescence on the inside of the bulb is what actually glows). If the bulb is cold you do not get the ionization of the mercury to cause the fluorescent powder inside the bulb to glow, or it just glows a small amount.
if your feet go inward it turns your legs inward to creating the bones to go inward. For my soccer team we went for tests to check out our knees and my left knee goes inward. This is bad cause their is a better chance of an ACL injury so i have to walk outward with it more so it will go straight.
your float is stuck or you have a short in the hot wire!
if it was electical u would notice gauges fluctuating. cougars have problems with the fuel filters getting clogged which would cause hesitation and in extreme cases stalling
Fill resevoir open bleeder valve at slave cylinder Gravity will cause fluid to run out Depress clutch pedal and hold Tighten bleeder screw