Coolant has gone down and im getting a little white smoke ate idle.could this be a intake gasket leak or a cracked head and how will i know w/o pulling the heads

 

usually white smoke is head or head gasket........

 

how would i know if the head is cracked or if the gasket is going

 

Pull the spark plugs first, look for one with white calcium buildup. If you find one (or not) pull the affected head(s). It will be fairly obvious from there if a cylinder has a leak or if the gasket went bad.



Get a machine shop to pressure test the heads to see if there are any cracks present. Now is also a good time to get the heads milled and ported.

 

so if theres no calcium on the spark plugs then it a bad gaskets?

 

You pull the plugs? Pics?

 

Do you have access to a cylinder leak down tester ? Or a cooling system pressure tester ?

 

Post a video. You're in Michigan, it's winter there, and white smoke from condensation in the exhaust is normal. The last thread like this one turned out to be normal when the OP finally posted his vid.

An enormous cloud of white smoke is a different story.

 

For the original poster, just so you know. The LS motors do not have coolant in the intake at all. So a intake gasket leak will not cause it to burn coolant. Just a FYI.

 

picture of 7 plugs didnt feel like pulling the last one, im seeing a little water comming out the tail pipe today a little white smoke after warm up not much though