I'm driving a 2000 Mercury Grand Marquis....

Asked by Jul 03, 2015 at 12:47 PM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

I think my timing chain broke... I drove
the car a hour away and drove it back.
Rode around and ran errands when I
got back. Stopped and got gas and
rode around a little but more. My
check engine light came one and I
stopped at the AutoZone. While I was
in the store waiting on the computer
my car just went dead... When I went
outside to start it up it sounded real
bad rattling and shut back off.... I'm
not sure if it's timing just looking for
answers... I was given a few options
like maybe it blew a spark plug, timing
chain broke. I drove it home with 2
feet home and it took forever got it to
just go..... any suggestions?

9 Answers

If the timing chain broke it would not run at all. period. Not even badly.

Even if one broke? It runs just really bad...

Any suggestions

Well thanks but no thanks.... Any suggestions real suggestions

21,730

What was the check engine light code or codes ?

Cylinder 4 misfire

286,515

I'd change the spark plugs first. If you still have the misfire, then replace the coil on cylinder #4. So what kind of rattling noise, is it coming from the fan/serpentine belt area, or from the engine? How's your fluid levels?

That's the plan ASAP... rattling maybe the timing guides loose..

Fluid levels are fine....

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