Mercury Mountaineer won't go above 20 mph?

roenajdje

New member
2003 mercury mountaineer won't go above 20 mph?

My suv was doing great until tonight when I turned it on I heard a loud rattling noise and then when drove I couldn't go above 20 mph the rattling stopped but I still can't go any more then 20 mph.

My coolant ran out earlier today but I filled it up right away. I know there's a coolant leak which I was getting fixed this week. Could this have to do with my problem ? Also last month I had a new fuel filter installed, could this have to do with it?

I also read that it could be the catalytic converter because it's cold and snowing and could have cracked it?

Your thoughts and help would be greatly appreciated before I take into a shop .
 
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