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Discussion Starter #1
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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Balltaatic01 said:
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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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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Discussion Starter #6
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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Balltaatic01 said:
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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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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Balltaatic01 said:
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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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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jjsg09 said:
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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jjsg09 said:
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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A miracle.....lol. i would suggest a swivel adapter and some 6 in extensions
 

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Discussion Starter #18
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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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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Discussion Starter #20
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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