2000 Expedition
5.4L
70,000 miles


I had a coil pack go bad on my back passenger side spark plug. Replaced it and noticed coolent in the plug hole. Someone told me somewhere the coolent is leaking on/into the plug/coil. Anywhere know where this is coming from? What specific hose is leaking? How do I fix/replace it? Trying to stop this from going on before I blow another coil. I am also having hard cold starts, where when the engine is cold it takes sometimes 2 minutes of craking for her to start.
I have replaced the plugs, fuel filter, PCV, and cleaned the throttle body to stop the hard cold starts.... I think it the coolent in the cyl. plug hole. Any ideas?


Tony

 

Its coming from the heater hose ,just to left of last plug back on pass. side .

If your talking about that plug.

You didn't mention what plug ?????
You might want to chk your IAC valve !
Clean it or change it ,it's the silver looking canister
to back of the throttle body.

Rich

 

If it is number 4 cylinder (pass rear) then it is probably a leaky heater hose just above it. Itis a common problem on the 97-2000. Ususally just tightening the clamp will fix the problem.
Jimmy

 

The hoses seem compresson fitted and don't have clamps

 

Ok, I wasn't sure what year that they finally changed that.
Which cylinder is getting the anti-freze in it?

 

# 4 The last one in the back passenger side

 

You may still have a bad hose, You might have to use a pressure tester to find the leak. Pump up the radiator to about 16lbs and see how fast the pressure drops off and where the coolant is coming from.
Jimmy