#4 spark plug hole full of coolant??

[callee11]

Was changing plugs on my 97 with 4.6L and got to number 4 pulled the boot out and there was coolant in there?? any ideas?

 

[panda24619]

heater hole leaking in there. fix the hose no more leak. happened to me.

 

[callee11]

cool thanks..... I just realized i posted this in the wrong section.... sorry guys

 

[walnuts4x4]

moved it too the right section... glad you made it over here as well

 

[callee11]

Thanks lol I was trying to either move it or delete it... but figured one of you guys would prolly have to

 

[99 Expy]

Yupp, like Panda said. When I changed my passenger cam cover, I unhooked a heater hose, and it was a little loose when I put it back on so it leaked in the hole, if it leaks enough like mine did, it will cause a misfire.

 

[callee11]

Yeah I changed theplug but still have a missfie on #4.... its not constant though...I guess ill throw someplug wires at it and see what happens

 

[callee11]

ok plug wires fixed my missfire but I still havent found the leak... are you guys talking about the heater hoses that fun to the heater core through the firewall? if so they are dry.... maybe a previous owner messed with them and didnt clear out the plug hole? IDK but im still at the same coolant level on my surge tank havent lost anything.

 

[99 Expy]

When I had the problem with mine, it was an off and on misfire. It never dawned on me until a few weeks later when my computer told me it was #4, but prior to that I could hear the misfire through my exhaust especially. With mine, when I pulled the #4 plug wire, the boot was wet, from the coolant sitting in the plug hole. My heater hose looked dry as well and I couldn't tell that it was leaking until I watched it with the motor running, and it was leaking pretty good.

 

[callee11]

yeah i think im just gonna keep watching my coolant level for awhile and see what happens

 

[99 Expy]

I don't think it will leak enough of a difference to notice the loss of coolant by looking at your coolant level since its just a drip drip kind of deal, but when mine misfired, I let it cool down and pulled the #4 plug wire and saw that it was wet from coolant.