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how do i test each one of my cylinders to make sure there all working the way there suppose to be. i have a 97 sho
 

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First, why are you testing it? Engine running rough? Check Engine or Service Engine Soon light on? If so, what's the code?

Then, what are you testing? Fuel delivery via the injectors, spark delivery via spark plug wires and spark plug, and/or compression and valves?

Assuming all three.

Fuel delivery:
Tricky and I don't know much here. I listen to each injector with a piece of 3/8" tubing (one end held to my ear, one end held to each injector in turn) to hear if each is clicking while the engine is idling. Keep the tubing away from the serpentine belt.

But that doesn't tell you about spray pattern or how well it works at speed. But, you should probably throw a code about cylinder missing if the injectors are having trouble at speed.

Wires and plugs:
To remove wires: http://www.harborfreight.com/cpi/ctaf/disp...temnumber=95961
-- some people hold the wires with these while testing for spark by holding the wire end close to a metal bit on the engine... but even with heavy rubber gloves, you can get royally zapped.

Search on removing the spark plugs between the engine and the firewall. Looks like a good discussion here (I don't have the Duratec, so I don't know for sure): http://taurusclub.com/forum/index.php?show...tec+spark+plugs

Compression and valves:
Compression: http://search.harborfreight.com/cpisearch/...r&Submit=Go
-- this makes sure you have adequate compression in the cylinder and that piston and rings are OK, and that cylinders are balanced (all have about the same compression).

Leak-down tester: http://www.harborfreight.com/cpi/ctaf/disp...temnumber=94190
-- this will pinpoint problematic cylinders... slow leak-down means a good cylinder... a fast leak-down usually indicates bad valves... instantaneous = broken valve or piston.
 

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Remove the coil from the cyl head, re-connect the connector on top, then run the engine. Stick a screwdriver into the coil where the spark plug goes, then hold it towards a ground, and see what color the spark is.
 

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It is virtually impossible to test a coil and find out which one is bad, unless it is completely dead. One of the bad things about the COPS. If you had some of the fancy Ford testing equipment you can monitor the wave form.

The best bet is to buy four new coils and then put them in the back. Then use the extra coils to swap around in the front if you still have the miss.
 
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