threw the #7 cylinder plug
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Junior User
Joined: Oct 2013
Posts: 50
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From: Virginia
threw the #7 cylinder plug
hey all, so my truck threw the #7 cylinder plug a while back, i bought a cylinder head repair kit as well as a new ignition coil to go with it. i got everything installed and put back together, but cylinder 7 is still misfiring upon start up and im still getting exhaust leak from the cylinder head. any advice on how to stop that?
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Junior User
Joined: Oct 2013
Posts: 50
Likes: 0
From: Virginia
can't remember the code, had it run at AutoZone. and when it originally threw the plug it was leaking exhaust through the open cylinder.now that i put the cylinder head repair kit which rethreads the cylinder head and comes with a new plug and wiring its running and idling fine but accelerating and constant speeds are still causing it to leak exhaust through the repaired cylinder head.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
Using a TIMESERT repair correctly should have resulted in a good repair.
Technically, if the cylinder is losing combustion pressure the crank will sense it as low rotation time and can report it as a misfire since it cannot determine what has caused the lower rotation time so reports as a 307 code.
The 'outside world' has to determine the cause.
Leaking exhaust can burn and deteriorate the coil boot and apply extra heat to the coil.
Hope this helps in understanding what the cause is.
Good luck.
Technically, if the cylinder is losing combustion pressure the crank will sense it as low rotation time and can report it as a misfire since it cannot determine what has caused the lower rotation time so reports as a 307 code.
The 'outside world' has to determine the cause.
Leaking exhaust can burn and deteriorate the coil boot and apply extra heat to the coil.
Hope this helps in understanding what the cause is.
Good luck.
Thread Starter
|
Junior User
Joined: Oct 2013
Posts: 50
Likes: 0
From: Virginia
Using a TIMESERT repair correctly should have resulted in a good repair.
Technically, if the cylinder is losing combustion pressure the crank will sense it as low rotation time and can report it as a misfire since it cannot determine what has caused the lower rotation time so reports as a 307 code.
The 'outside world' has to determine the cause.
Leaking exhaust can burn and deteriorate the coil boot and apply extra heat to the coil.
Hope this helps in understanding what the cause is.
Good luck.
Technically, if the cylinder is losing combustion pressure the crank will sense it as low rotation time and can report it as a misfire since it cannot determine what has caused the lower rotation time so reports as a 307 code.
The 'outside world' has to determine the cause.
Leaking exhaust can burn and deteriorate the coil boot and apply extra heat to the coil.
Hope this helps in understanding what the cause is.
Good luck.
Fleet Mechanic
Joined: Sep 2003
Posts: 1,716
Likes: 15
It's called a cylinder head, and you can look it up on rockauto or other car part websites for a price. Replacing a chain-driven overhead cam cylinder head requires a lot of careful work with all the right tools, and is not a simple "take old one off, bolt new one on" type of job.
Bluegrass mentioned the Timesert repair, which is the only Ford-authorized method of repair, IIRC.
Timesert's website:
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
Timesert for Ford modular engines:
++ Ford Spark plug Repair ++, ford spark plug blow outs, blow out spark plug ejection blow out, blown out sparkplugs, ford stripped spark plug, ford sparkplug blow outs, spark plug blow out ford, ford defects, ford spark plug repair ford, ford spark
They have an installation video you can play to see how it works.
Bluegrass mentioned the Timesert repair, which is the only Ford-authorized method of repair, IIRC.
Timesert's website:
++ TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair,
Timesert for Ford modular engines:
++ Ford Spark plug Repair ++, ford spark plug blow outs, blow out spark plug ejection blow out, blown out sparkplugs, ford stripped spark plug, ford sparkplug blow outs, spark plug blow out ford, ford defects, ford spark plug repair ford, ford spark
They have an installation video you can play to see how it works.
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