overnight89

Hello All,

I have recently started my account here, but have come to the forums in the past. My issue with my 99 ford mustang GT, is that I am getting grey smoke coming mainly from my left exhaust, and a little from the right. Originally it was white smoke, but I later found out the coolant going into my firewall for my inside heat was cracked at the firewall and was leaking alot of fluid into the spark plug holes. It didnt get past the spark plug, but was stuck in the hole above the spark plug. After blowing and removing the coolant, I am now seeing grey smoke from the exhaust, and cannot figure out what the problem is. I will post a video today when I get off of work, if anyone has a clue.

overnight89

Video of Smoke

Camster

Is the antifreeze level dropping? I'd pressure test the system.I suspect a problem with the left head or head gasket.

jwog666

yeah im gonna guess by the quantity of the smoke that you are burning coolant, head gaskets are the most likely cause

overnight89

Yea I had a feeling just needed a second opinion. I am gonna take it apart this weekend and check on them, as well as doing a coolant pressure test. I will update later today if I finish.
-thanks yall

Camster

You might do a compression test as well,if only to get a better idea of what may be going on in the right head..
If I was in your shoes,I'd pull both heads,have them checked for warpage,replace both head gaskets,and change the oil.It may be contaminated.

overnight89

Pic after pulling manifold. Smh.