Mechanics

IT HAS A MISFIRE ON ALL CYLINDERS

1999 Lincoln Town Car • 120,000 miles

Multiple cylinder misfire, no codes, cylinder contribution test shows skip on different cylinders every time I drive, only skips under light throttle going up hill, has coil on plug 4.6, coil or plugs help it
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Kevin Godwin
May 31, 2012.



Check the basics. I would look at the plugs and coils. How many miles are on these items?

The injectors may also be an issue. They need to be professionally cleaned every 50k

Roy

ASEMaster6371
May 31, 2012.
Injectors are clean and pass flow test, coils and plugs are new

Tiny
Kevin Godwin
Jun 1, 2012.
Ok, start with a compression test

Roy

Compression is good and timing chains are not stretched

Tiny
Kevin Godwin
Jun 1, 2012.