Re: Possible blown head gasket on V10
"SnoMan" <firstname.lastname@example.org> wrote in message
> Are you loosing coolant? Also does oil look okay and has the engine
> been hot? Something you can do while you sort this out is to install a
> lower pressure radiator cap. I have been running them for years and I
> have do had any problem for them and they extend hose life and when a
> leak happens, it is a lot less agressive.
It can be done, but it is risky on new cars. Water boils at 212 F, each
pound of pressure raises that 3 degrees F. Antifreeze and water in a 50-50
mix boils at 248 degrees F at sea level. There are surfaces
in the engine that will approach this temperature. I would be nervous on a
vehicle with a standard 198 degree to 212 degree thermostat running less
than a 10 pound cap. Also remember water boils at lower temperatures at
higher elevation, 5000 feet lowers it 11 degrees.
I would have the coolant system checked for the presence of hydrocarbons, a
good indicator of head gasket leak.
The longer you wait to fix, the more expensive it will get.