ok haveing a little problem, yesterday i thought i heard my antifreeze boiling, got out of the truck nothing. heard it again to night when i got home got out poped the hood and it was. the truck funs the same temp on the guage it allways has, and i haven't done any mods to the truck recently except for my air dog, and i doubt that caused it. so other then maby my cap craped out any ideas what could be causing it?

 

Your cap is probably not holding the right psi that could cause it to boil but just plain water boils at 212 so if you have any antifreeze in it at all should raise the boiling point by alot my truck runs at 190 and i thought that was high.

 

bad antifreeze can also do that as well. maybe time for a coolant flush

 

head gasket? thats what mine did when she started to go

 

could be a headgasket mine did that when i started to go out

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oops didnt see your post if i would have i would have said the same thing

 

i agree sounds like you may need to pull the head!!

 

yeah the cap is ok tested it, but i noticed a lot of scale in the radiator, so i flushed it, couldn't get it clean, new one is on the way........ guess i'll rip the head off wile i'm workning on it, too bad i had plans to buy a turbo with my tax money, not a head gasget and rad

thanks guys, sean

 

hey man before you go drop like 3 or 400 on a radiator, take your old one to a radiator shop and have it cleaned. i got mine cleaned for 87 bucks and i swear to god its cleaner than a brand new one is! the thing shines like its polished on the inside. beats the hell out of 400 on a radiator. and a headgasket should only run you like 50 bucks

 

yep its the head gasget, pressure tested the cooling system at 30 psi, leaked down right away. rippen the head off tomarow hopefully the head isn't cracked. i don't need that bill on top of everything else.

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thinking of heads any one knkow a good aftermarket company, cummins wants $1006.64 for a head.

 

talk to cummins_guy best price ive seen on a head