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Q: car run rough on 2000 Ford Taurus

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
my car is shaking everytime I go certain speed and the engine light bleak on and off. is it time for me to replace my ingition coil.
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With a blinking check engine light, you are risking damage to components - such as your catalytic converter. This is because your engine is misfiring, which is why the light flashes.

A coil can be a failure (which engine do you have? 12V OHV or 24V DOHC 3.0L V6?), but so can spark plugs, wires (if present) etc.

Get a good diagnosis performed and avoid driving the vehicle until repaired - you'll be glad you did.
Sounds like the 12 valve OHV engine.

Sounds like plugs and wires perhaps. Coil - maybe. Doubtful though. Have a good diagnosis done ASAP.
will it help if i get all that change the coil, spark plug, and wire. I been driving it for like over a month.
I would have it tested first. Very important. No need to throw a coil at it if it doesn't need one.

My concern is - after a month, damage to your catalytic converters may already be done. You won't know until you repair the misfire.
I would recommend shopping a local dealership - that is the best source for a quality catalytic converter (and in some states - the ONLY legal source...) I'm going to guess - $1,000 - $1,500.
will do more question every time I cut on my AC it always blow out hot air what could be the problem with that..
Could be anything from a system that is low in refrigerant charge due to a leak, to an electrical issue with a cycle switch or high pressure cut off switch, to a compressor failure or compressor coil issue, to a restriction in the lines causing high pressure issues... Too many possibilities - needs a good checking out.
I have a 1997 Saab 9000.
I was told by one garage I needed a new front pipe and cat
I took it to a Saab expert who said both were fine
My check engine light was as simple as the intake cam gasket cylinder 4 was leaking due to a small split in the factory paper gasket
I bought a thicker felt one about an hour of labor for the install. No more check engine light.
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