Hey ya'll,, for a 318 motor,, if ya oil is has water in it an ya oil is milky then how could ya tell if the block is crack of if its just the head gaset bad,, Is there anyway to tell with out pulling the heads off 1st ????

 

Sounds like the head gasket. Do u have white smoke from exhaust?

 

Compression and a leakdown test will tell you what you need to know. Sounds to me like a HG went bad.

 

I will do a PSI test when it stops rainning thats for sure,, But motor runs good a smooth an not a miss one,,,, But like I said it only runs a couple seconds an dies,, Cause I pos to have the wrong PCM box on it,,

 

I could be the security shutting the engine down. If the new pcm wasn't vin flashed then the security will do that.

 

Well the new rebuilt PCM box was programed for the Vin's #'s on my D an when I hooked it up its still start an dies like its been doing,, They are sending me another one so I will see what happens then,, An there is not an security on my D from what they tell me from my Vin #'s I have the black key for my D an not a gray key

 

Well the only sure fire way to know whether you have a blown HG is a compression test.

 

Im pretty sure just about all Durangos came with security. Do you have the Lock and Unlock buttons on your key fob?

 

I don't have a remote at all for my D,,, An just have the black key only,,, When I first got my D I didn't have any keys at all,,, I had to go to the dealer to get one made,, They made the key from my Vin #'s an it works everything,, An also the dealer is the ones that told me that my 1998 4X4 Durango dosn't have the security an thats why I have a black key for it,,, If It had security then it would have a gray key for it,,, So I really don't know what to say about all this at all,, The guy that I ordered the new rebuild PCM box also told me that its not made for security,,, I sure wish I wasn't deaf an I would sure be able to call around but can't,,, So thats why I am in this site to hope to get some help,, An I really thank ya all,,,

 

When u lock your doors does a security light flash on the dash?