1999 mustang gt 4.6 question

[rdpar]

Newbie here, and not a motor head but I could use some help here please.


There seems to be moisture getting into my two rear left side (as you are standing in front of the car) spark plug boots and fowling out my plugs. I changed the plugs and wiped off the contact of the coil to the plug,but that only lasted a couple days. Could the boot just be old and worn out? Can I buy just the boot without the coil? What else could be the cause. Also Sometimes when I start the car I hear a fog horn sounding thing for a few seconds comming from under the hood I guess, could that be the fuel pump starting to go. Thanks for the help.

RDPAR

 

[Crzyhrse]

The fog horn sound is coming from the radiator. My Mach makes that sound all the time. It'll quit when the engine is completely cooled down.

 

[rdpar]

thanks, it,s a wierd sound.

 

[04YELLOWGT]

I would try to replace the boot and see if that helps get rid of the moisture, I've seen just the boots for sale. Make sure you blow out the holes real good to get any water that still might be in there out.

 

[jayrw]

Also Sometimes when I start the car I hear a fog horn sounding thing for a few seconds comming from under the hood I guess, could that be the fuel pump starting to go. Thanks for the help.

RDPAR

My 2000GT occasionally does the same thing, Fog horn is a good description ..I'm not sure why it does it but revving up the motor a few times always gets rid of it, only seems to happen when I first fire it in the morning with the heater on.

It sounds a lot like this: http://www.sounddogs.com/previews/58/mp3/548515_SOUNDDOGS__fo.mp3

 

[eliteJAE]

i think i bought a set of 4 boots for like 15 bucks at carquest a while back. where's the water coming from?? you spraying water in there or is there a leak you dont know about? not trying to scare you here, when i had water in my wells and they came back after cleaning it was from a coolant leak

 

[rdpar]

I can't find any leak anywhere. thanks

 

[Mustang5L5]

Fog horn sound??

I've never heard anything like that from my car. Interesting

 

[MichaelsLilGray]

Cant say i hear a fog horn in my car.. but as far as your plug issue goes.... Is it antifreeze or is it just like condensation? If its antifreeze.. your manifold gasket is bad... if its just condensation... best way to fix the problem is to run the engine till hits good and warm... remove the coil and let it evaperate... after the engine cools pull the plug and see if there is any just sitting on the plug.. its a possibility you have just enough sitting on the plug to get water everywhere... Also if your boot isnt sitting fully on the block try getting some small spacers and putting them between the head of the bolt and the coil itsself.. to see if you can get a more secure seat.

From what im hearing though.. 2+ plugs having that issue is a manifold gasket.. best of luck.

 

[RandyStinchcomb]

Newbie here, and not a motor head but I could use some help here please.


There seems to be moisture getting into my two rear left side (as you are standing in front of the car) spark plug boots and fowling out my plugs. I changed the plugs and wiped off the contact of the coil to the plug,but that only lasted a couple days. Could the boot just be old and worn out? Can I buy just the boot without the coil? What else could be the cause. Also Sometimes when I start the car I hear a fog horn sounding thing for a few seconds comming from under the hood I guess, could that be the fuel pump starting to go. Thanks for the help.

RDPAR

replacing the boots might help but if this is the 2 coils on the right rear of the engine(passenger side) it could be a coolant hose leaking, loose clamp or the intake nipple/coolant tube that feed the 2 hoses going to the heater core are bad.... and the "hooting" sound is comming from the IAC, chances are it's time for a replacement IAC or the hose and IAC "muffler" asbly, as that black box on the IAC is suppose to deaden any IAC noise........

 

[rdpar]

Thanks for all the input. The moisture , I think ,is condensation. I don't see any unless I remove the coil from the plug. There is none on the outside that would indicate a leak somewhere. Oh Yeah , what is a iac and what does it look like and where is it? Thanks

 

[OV10stang]

Started getting water in my spark plug wells on my 99 last year. I found water would come in from the hood scoop area(thru the plastic retainers) and leak down thru the spark plug boots. I would hardly ever see any sign of water on the engine, but pull the plugs once and a while and nothing but rust water inside.... I would completely blow out the water with compressed air, then spary with silicone, and replace the plugs, everytime. Since I bought new cop plug boots and sealed the hood scoop plastic retainers and haven't had a problem since.

 

[SilverBullet00]

if you have the plastic stock intake, it could be leaking into the spark plug wells... thats what mine did..

 

[OV10stang]

I was getting water in there with the plastic intake and after the trickflow intake install.... wasn't coolant, just water. I would always find it in the rear cyl plug holes, sometimes fwd ones too, depending on how the car was parked on where the water went... Sure it's the same for you rdpar...

 

[joshheat25]

Randy is the man. that's all..

 

[rdpar]

Thanks again for the input I'll look at the hood scoop.