Coolant problems
 

Ok everyone
I've got a 2004 lly... I just installed a new water pump onto truck bout 2 months ago along with new thermostats. Well it's been going on now for bout a month now that it will spit coolant out over flow and hold pressure on system for days. I have also been smelin coolant lately also but can pressure test and can't find any leaks..... Ive been reading some stuff and I got a bad feeling that the hd gaskets are gone but it's never gone above 210. Some one said it could be the egr. Hope yawl can help

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Could a bad rad cap make it hold pressure for a period of time like that?
:humm:

have you tried pressure testing it with it running? kinda sounding like blown headgaskets

no ive not tried that yet... ill have to try that when i get home tonight. and if it is headgaskets the truck will be sitting for a while cause aint got the money to fix that at the moment in time....