Re: Missing 4.6 V-8

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Missing 4.6 V-8

Brad Behm

28 Oct 2006 16:02

Hi,

My '95 Town Car with 4.6 SOHC V-8 is missing on the # 1 cylinder. The
computer says so, and the spark plug indicates incomplete combustion as it
is pretty black compared to all the others. Sometimes it the engine
backfires into the intake plenum especially under acceleration. I have
eliminated the coil pack (swapped sides), spark plug (replaced all) , and
spark plug wire (replaced) as the problem. Should I be looking at fuel
delivery i.e. plugged injector, or even valve train problems or is there
something I have overlooked in the ignition sector? My gut tells me it's
ignition related, especially because of the intermitent "cough" up the
intake manifold...reminds me of crossfire. Is there an
electrical/electronic component that would only effect the # 1 cylinder that
I haven't already checked out, or should I move on to fuel or valve train?

Thank you in advance anjyone who can help me.

Brad

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