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Old 05-15-2008, 05:30   #1 (permalink)
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02 ford taurus...i'm stumped

I have a 2002 ford taurus 24v with 56,000 miles on it. About a month ago it started to have a miss at idle very faint with the a/c off but more prominant with the a/c turned on. It threw a code for a cylinder 1 misfire. I replaced the IAC and it still was acting up so i replaced the plugs and wires. It now has the miss at idle whether the a/c is on or off but is not throwing a check engine light.

Any ideas?
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Old 05-15-2008, 14:11   #2 (permalink)
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Re: 02 ford taurus...i'm stumped

just had my mechanic check for codes... Its showing a cylinder 1 misfire. Also showed code P0316....any ideas?
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Old 05-16-2008, 00:16   #3 (permalink)
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Re: 02 ford taurus...i'm stumped

Has the MAF been cleaned lately?
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Old 08-04-2008, 12:07   #4 (permalink)
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Re: 02 ford taurus...i'm stumped

cleaned the maf.. Still has the misfire. If i drive it around with the a/c off the check engine will go out after a few days. As soon as i turn the a/c back on the misfire gets worse and the light comes back on. Just drove it on a 400 mile trip with no a/c and it ran fine except for a slight miss at idle once in a while but didn't trip a code.

Last edited by ecsw; 08-04-2008 at 12:08. Reason: add info.
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Old 08-04-2008, 12:08   #5 (permalink)
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Re: 02 ford taurus...i'm stumped

Need to look at the coil then.
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Old 08-05-2008, 06:18   #6 (permalink)
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Re: 02 ford taurus...i'm stumped

how do i test the coil?
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Old 08-05-2008, 09:44   #7 (permalink)
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Re: 02 ford taurus...i'm stumped

Look at the bottom and all around the sides for some small cracks.
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Old 08-05-2008, 17:29   #8 (permalink)
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Exclamation Re: 02 ford taurus...i'm stumped

Quote:
Originally Posted by SHOZ123 View Post
Look at the bottom and all around the sides for some small cracks.
You can also using a spray bottle squirt the coil gradually with water while the engines running. If you start seeing an electrical light show around the coil and the engine starts running rough and/or stalls you have a bad coil.
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