Nokturnal97

Sorry it wasnt the head gasket it was my intake manifold gasket and it was leaking into my spark splugs all i had to change was the intake manifold gasket i didnt have to buy a new intake, i've heard from other mustangs that the intake from 96 to 98 they have a tendency of leaking after 90 to 100k try changing the gaskets and the vibration is probably due to a cylinder misfire due to the coolant leaking into the spark plugs, because after running your car with water in the spark plug after a while your spark pluggaps tend to change. I also had to change the wires. hope this helps good luck man laterz

Nokturnal97

Eduardo

Yeah people tell me the vibration is cause from a misfire but shouldn't the check engine light come on? I'm going to check if theres coolant on the inside of the injector. Anyone know how to pull the injector out, or did i just answer my question lol.

gt96stang

Time for PI intake swap...

oxfordgt

Sounds like your car is missing. Pull the intake and put a new one off. Regap your sparkplugs to .52-.56. Also check for any vacum leaks.

undecided.steve

You might be able to get it (Intake) replaced for free as Ford has a known problem with these:

http://www.consumeraffairs.com/news0..._manifold.html

It's worth a try!

Eduardo

Wow, thats awesome. I just filed a report, cant wait to see what they have to say. Thanks a million man.

Js 99 GT

vibration could also be caused by a vacume leak if your manifold is leaking. i dont think is due to fouled plugs cause of water in the cylinders cause he said all plugs look good and dry.