Replace the shocks, or struts if equipped.
a rough road can cause the fuel shut off switch to turn off
you can but it will ride a little bit more rough
jc Whitney has rough country shocks for 2-4 inch lift...there about 150 for all 4
You probably have worn out shocks or struts.
i have a 95 marquis and have a perfect answer. since the ride of a grand marquis is "floaty", unless u get a rim and tire wit an appropiate offset and atleast 9 inches wide or less, your fender will hit the actual tire while going down the road and cause a blow out. i know cause i had sum put on mine without a lift and they blew my front driver tire. some Chevy truck springs were put onto the front and air shocks wit 2 spring separaters a piece on each spring in the rear was what was used on my car and my car cannot compress the springs enough at all to blow a tire. not too rough on the front because a marquis weighs more than a crown Victoria so don't let people wit vics tell u they gunna ride rough and not compress at all. i got about 2 to 4 inches of actual compression so its rough? but not bad enough to make me stop drivin it. the back on the other hand is very rough. also btw i have a 275/25/24 tire so tats where alot of the roughness come from.
I noticed rough idle on a 2001 MGM and what seemed like transmission slip while going uphill. I replaced the spark plugs. Both problems went away.
bad shocks or bad alignment.
cushion your ride without them it would ride like a lumber wagon very rough
The check engine light indicates that the computer has detected a "fault". Use a code scanner to find out what the computer has detected, that is PROBABLY the reason the engine is running poorly.
The correct spelling is "rough."
maybe your tires are too hard
Extremely bumpy and rough. They don't have shocks and shuts like cars.