I have 2 2002 Ford Escapes. The ignition coil on each spark plug are NOT water proof. On top, they look like they are sealed in epoxy. The plug in connector fins are not sealed. I pressure washed one of these engines and eventually all 6 coils failed. At $75 each.
This is what I do. These coils use a spring to make contact with the spark plug. It seems to me that these springs "shrink" or make loose contact to the plug.
I pull the coil/boot assembly. I pull the rubber boot off of the the coil. I push the spring out with a bic pen. I stretch the spring. I plug the spring tight onto the blade coming out of the coil. I feed the spring back through the boot and have about a half inch sticking out. I have forceful connection to the spark plug.
The 2 pin plugs to the coil get brittle. I wrap a tyrap around the whole plug and coil.
You can hose the 2 pin plug and coil connector with WD40 and plug them in wet.
I have shortcut tricks to get to each coil to replace all of the spark plugs. Use only Autolite Double Platinum plugs.
Thursday, May 21st, 2009 AT 9:31 PM