Mechanics

03 , EX-CA HIGHWAY PATROL CAR, 140K MILES, ENGINE LIGHT GOES OFF AND ON, SLIGHT MISS AT IDLE ONLY, GOOD POWER. MY CODE SCANNER SAYS MISS AT #6 PLUG. WHAT I'VE DONE -CHANGED PLUG AND COIL #6 CYL. CHANGED INTAKE MANIFOLD. CHANGED TIMING C

2003 Ford Crown Victoria • 140,000 miles

03 Ford Crown Victoria, ex-Ca highway patrol car, 140K miles, engine light goes off and on, regular miss at idle only, good power. My code scanner says miss at #6 plug. What I have done -
Changed #6 plug and coil. Changed manifold. Changed timing chain guides. Took compression test - left bank of 4 cyl down 20 lbs each from right bank.

Nothing helped - what now?
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George #8
May 17, 2012.



Did you do a wet and dry compression test?

Tiny
Papajohnslice
May 17, 2012.
Yes, I have done a wet and dry compression test.
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Tiny
George #8
May 17, 2012.
Did you replace the inition wire to 6?

Cadieman
May 17, 2012.

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