Misfire in cylinder 4 - Mustang Evolution

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Old 11-26-2012, 11:25 AM   #1
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Misfire in cylinder 4

01 bullitt has a misfire in cylinder 4. I know it could be the plug or the coils but what is the basic procedure for figuring out which one it is?
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Old 11-26-2012, 11:44 AM   #2
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Quote:
Originally Posted by Balltaatic01
01 bullitt has a misfire in cylinder 4. I know it could be the plug or the coils but what is the basic procedure for figuring out which one it is?
How many miles are on it right now?
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Old 11-26-2012, 11:51 AM   #3
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Old 11-26-2012, 11:59 AM   #4
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I just had the same problem on my 2001 Gt mine was the coil. If you go on Jegs you can pick one up for 25 bucks shipped to the door.
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Old 11-26-2012, 12:01 PM   #5
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Have you ever changed all the plugs
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Old 11-26-2012, 12:07 PM   #6
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I never had but I've only had the car for about 1500 miles. The guy who had it before me took good care of the car so it's not unreasonable to think he had changed them before but I don't know for sure if he ever did.
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Old 11-26-2012, 12:15 PM   #7
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Quote:
Originally Posted by Balltaatic01
I never had but I've only had the car for about 1500 miles. The guy who had it before me took good care of the car so it's not unreasonable to think he had changed them before but I don't know for sure if he ever did.
I would do it anyway. Change all plugs and boots or wires. If there are original they should have paint on top of the plug
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Old 11-26-2012, 12:25 PM   #8
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Other than normal hand tools will I need anything special to change everything out?
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Old 11-26-2012, 01:31 PM   #9
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Quote:
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Other than normal hand tools will I need anything special to change everything out?
Nope I would get some dielectric grease tho
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Old 11-26-2012, 02:46 PM   #10
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I would see if any coolant is in the spark plug cylinder then it could be related to the nipple on the manifold to the heater lines
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Old 11-26-2012, 09:36 PM   #11
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Quote:
Originally Posted by Balltaatic01
Other than normal hand tools will I need anything special to change everything out?
Mine just got coolent in that spark plug and exact same problem . So check ur plug first takes 5 mins and you will be able to tell right away! You can check my thread I have about it if you want
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Old 11-27-2012, 11:16 AM   #12
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Hey just a warning, when changing the spark plugs on these cars there is a very specific way to doing them or you can cause some bad damage. They're notorious for spark plugs to blow out of the head.
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Old 11-27-2012, 12:02 PM   #13
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Quote:
Originally Posted by jjsg09
Hey just a warning, when changing the spark plugs on these cars there is a very specific way to doing them or you can cause some bad damage. They're notorious for spark plugs to blow out of the head.
+1
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Old 11-27-2012, 02:46 PM   #14
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Quote:
Originally Posted by jjsg09
Hey just a warning, when changing the spark plugs on these cars there is a very specific way to doing them or you can cause some bad damage. They're notorious for spark plugs to blow out of the head.
Use some anti-seize lubricant as well as dielectric grease. It's usually in little grey and orange Permatex packets by the register.
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Old 11-27-2012, 02:50 PM   #15
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What is the easiest way to get to the plug in cylinder 4?
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Old 11-27-2012, 08:37 PM   #16
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A miracle.....lol. i would suggest a swivel adapter and some 6 in extensions
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Old 11-27-2012, 08:38 PM   #17
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I didn't find it that bad just had one extension on my ratchet
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Old 11-28-2012, 02:01 PM   #18
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I changed the plug. There wasn't any fluid or anything around it. Put it all back together,it started fine but still sounded like it was misfiring. Pulled the coil off while it was running and nothing happened. Ideas? Prolly the coil but I've also head where it could be a clogged fuel injector.
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Old 11-28-2012, 02:14 PM   #19
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80 percent of the time its the cop. Very unlikely to be a fuel injector. More likely to be a bad valve then that. I would change the coil and i almost 100% guarantee problem solved.
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Old 11-28-2012, 04:02 PM   #20
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When I get the cop do I need to get any wiring or anything else for it? Also any particular brands?Motorcraft?
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Old 11-28-2012, 07:37 PM   #21
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No wiring brand is up to you motocraft will work just fine
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