Weird misfire
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Weird misfire
Hi,
97 4.6l 4wd, 167k miles. Owned and drove 5k miles in the past 4 years. About 3k miles towing 4-6k lbs. Replaced all plugs with motocraft 3k miles ago. I did egr/throttlebodu clean out when i first got the truck.
About three week weeks ago, I was leaving a stop sign and the truck engine started sturrering that went with a funky gassy smell. The check engine came on for p0307. I turned off the check engine light with my p0307 and it kept coming back.
A week later, I replaced the spark plug wire for cylinder #7. The code came back about 2 weeks later, 40 miles. I removed the plug and replaced it since the plug tip was wet with green fluid. I'm assuming coolant fluid.
Below is the opd plug with maybe 3k miles.
I replaced the plug and went for a drive. The cold came back after 5 miles with accleration to 65 mph. I forced cleared the code with scanguGe and hasnt been back since. The temp on the scanguage never gets above 188 F. I pulled the plug today with a cold engine that hasnt turned on for past 5 days and it was dry.
What do you think is wrong? Blown intake manifold gasket? Head gasket? Or something else?[/QUOTE]
97 4.6l 4wd, 167k miles. Owned and drove 5k miles in the past 4 years. About 3k miles towing 4-6k lbs. Replaced all plugs with motocraft 3k miles ago. I did egr/throttlebodu clean out when i first got the truck.
About three week weeks ago, I was leaving a stop sign and the truck engine started sturrering that went with a funky gassy smell. The check engine came on for p0307. I turned off the check engine light with my p0307 and it kept coming back.
A week later, I replaced the spark plug wire for cylinder #7. The code came back about 2 weeks later, 40 miles. I removed the plug and replaced it since the plug tip was wet with green fluid. I'm assuming coolant fluid.
Below is the opd plug with maybe 3k miles.
I replaced the plug and went for a drive. The cold came back after 5 miles with accleration to 65 mph. I forced cleared the code with scanguGe and hasnt been back since. The temp on the scanguage never gets above 188 F. I pulled the plug today with a cold engine that hasnt turned on for past 5 days and it was dry.
What do you think is wrong? Blown intake manifold gasket? Head gasket? Or something else?[/QUOTE]
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Freshman User
Joined: Oct 2010
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Coolant looks fine. I changed the oil about a month ago and smell anything out of place. I didnt really examine the oil itself since i didnt think anything would be wrong with it. There is smoke when i start up, but i think that is only steam since the white cloud goes away after a few minutes. The exhaust doesnt smell sweat either.
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