My car has 111,000 miles. Mercury capri convertible. I am having problems with it stalling out after i come to a red light or stop sign,when i start to accelerate it starts to sputter, stepping on the gas doesnt seem to help because sometimes it catches and keeps going and other times it stalls out. Always starts back up after 3 or 4 tries, but have to put the petdal to the floor, then it runs fine for another couple of days then does it again. Its very random when it happens, check engine light stays on alot also. Also the idle revs all by itself sometimes when im just sitting with the engine on. Please help!

SOURCE: 2005 mercury grand marquis- why does it stall

these have a problem with the throttle plate getting very dirty and can cause this problem,the throttle plate needs to be cleaned.take the air snorkel off of were it attaches to the intake and look into the intake.you should see a plate closing the air way,when you move the throttle with you hand and see the plate move this is the area that will look dirty and needs to be cleaned,you can clean it your self by buying a spray can of throttle or intake cleaner and a tooth brush and spray the area and scrub it with the brush and repeat until the area is clean of dirt and debri,re-install removed items and start car,you may have to hold the throttle wide open until the car starts then release gas pedal and let engine idle for a little while

SOURCE: 1999 mercury Grand Marques car won't idle

it sounds like the idle control valve is sticking. it is located at the throttlebody where the air inlet is. try tapping the valve to see if the idle is ok if so the valve should be replaced

SOURCE: I have a 2002 merc

When you don't know what to do & you never
work on your own vehicles,I would hope you have
a local repair shop you found & stayed with for 20
years,instead of hopping around to different places
as most people do.

You are correct & did make a mistake by not reseaching
vehicle problem & recalls.

The Ford Version is better

I could write a book on any number of issues,but you
still have to go through the entire vehicle once you buy it

You never buy any vehicle ,even a new one ,without working
on it.

You need to change spark plugs,all fluids ,etc
Anything less than laying it up for a couple of weeks
won't do the job.

Very,very few people do anything but drive a vehicle &
maybe change the oil once a year

You hear what good care they take,but in reality have no idea
what to ask a repair shop or any idea what so ever what is done there

SOURCE: Car not idling adn stalling when it is cold

sounds like the idle control vale is sticking when it is cold. It is located on the throttlebody right at the air inlet

SOURCE: 92 Cougar shuts off when I step on the gas

You need a tune-up with plug wires, also check EGR and PVC values.