Misfiring due to water in spark plug holes
#1
Misfiring due to water in spark plug holes
I have a 99 GT. This happened a few months ago when I went to an automatic car wash. It now just happened sitting in the rain the last few days. Any water that gets on the intake manifold drips down into the first two spark plug holes on the driver's side. I didn't even drive in the rain, the car was parked. Somehow water is getting into the engine compartment. I noticed water puddled on the intake manifold and went for a drive. It had a bad misfire(like last time after the car wash). I can back home and removed the COP's(they are factory). The first plug boot(closest to the front) on the driver's side was wet. The second plug hole was almost full with water! I removed everyone and blew them out with air. This is getting to be a pain. Anyone else have this problem? Any ideas on how to solve this? The rubber plug boot on the COP's aren't tight enough to seal out water. I've never had this problem on any other car. After I dry the plug holes, the car runs fine again.
#2
Water has got to be running somewhere it shouldnt be. Make sure your hood scoop isnt leaking, and check around the hood. Cars are built to keep water off the motor for the most part so something like seals or etc is going wrong. Try spraying your hood with ferbreez, then opening it and seeing where it leaks out from.
#6
Thanks. I didn't realize that I could just buy the boots separately......I saw the price of replacement COP's(the whole unit) and almost fell off my chair! I think they are priced at $83 each! I'll check my local Ford dealer.
Last edited by ANDYS87; 10-27-2009 at 01:30 PM.
#10
When I got mine about 2 years ago or so they came in a Ford box and were OEM replacement COPs. The reason I think he sells them so cheap is that he gets a **** ton of them and sells alot of them I mean every 2v uses the same COP and so do the 4v's if I remember correctly. So there is a large mass of cars,trucks,suvs,vans that use the same setup. You can always ask him though. Mine was a set of 8 shipped for like $118 I think is what I pad for them.
I went to Ford and got 1 coil pack for $86 back then and said screw this and returned it and went online and got those. No problems here.
I went to Ford and got 1 coil pack for $86 back then and said screw this and returned it and went online and got those. No problems here.
#12
Pressure check the the heads it sounds like you have a cylinder head gasket leak. I hope you like your car because this is a very extensive and costly process but that is the most worst case scenario. The next thing you can check is the intake manifold it may have a crack.
#13
Pressure check the the heads it sounds like you have a cylinder head gasket leak. I hope you like your car because this is a very extensive and costly process but that is the most worst case scenario. The next thing you can check is the intake manifold it may have a crack.
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