Hi guys,

2003 expedition EB 5.4 98k miles
Today I went thru the car wash, just as the rinse cycle was finishing, I felt a miss or two, then it got worse. shortly after the check engine light came on. When driving it seems to clear up for a moment or two.
I am going to try to get to a dealer soon, but does anybody have any suggestions about what may be going on.

I had the plugs replaced last summer, and I was told by the dealer the coils and boots were ok.

Thanks for your suggestions
Jeff

 

get ready to replace a coil........and dont bring it to the dealership..its too easy to fix

 

thanks for the reply. I was thinking the coils would be the culprit. unfortunaly I have to take it to the dealer. Suppose to be ice/sleet today, and snow tomorrow. Plus I live in an apt, and they get their panties in a wad if you do any vehicle maint in the lot.

 

This would be a good time to make friends with someone with a garage and a heater.
From what I hear, the dealer will do a tap dance on your wallet for COP replacements.

 

no doubt.......never take to a dealer just to replace a coil

Find a garage that will replace it...buy the coil and plug yourself and take it to them

I never had a garage charge me more than $50 w/ some as low as $25

Take to autozone and hv them read the code which will tell you what COP/plug to replace.....COP should cost you about 45-65 plug about 2-3

Buy some KY if you intend to still go to the dealership....Im just sayin'

BTW in that 2003 it should even be easier to get to the COPs on that year... its the same as my 2005......it was my old 99 that i was talking about and some of those COPs are a b***h to get to

 

Check for standing water in the spark plug holes. Often times this is the cause. Try running the engine at idle for 10 minutes or so and the water should evaporate off. This problem has been posted before and this was the cause.

 

Hello I was wondering the out come of your problem as I am having one similar to this and have already been raped by the dealership and that didn't fix my problem. Any advice would help, thanks!

 

The problem was a bad coil pack. I took it to a local garage for the fix. Don't remember the cost, but it cured the problem.

 

Thank You for reporting back the solution to the problem.