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Thanks for the input, have a friend with a shop going to have it checked out. Getting rid of the banks , going for the scangauge2. Update: Took the banks off, left the pressure gauge from the degauss bottle...Took it out,warmed it up and hammered it to 70mph down the highway...preasure rose to 15....punched it to 80 it popped the coolant cap as it should....something happened that i can only believe was the thermostat.....it dropped to 6 psi and stayed there the rest of the drive home,to the auto supply for a ford thermostat and 3 gallons of fresh coolant. Using the truck dummy gauges every thing in the green. Will update tomorrow after the coolant flush and change..might have got lucky!!
Well everyone, I consider myself the winner and a lucky one at that....Did a coolant flush, pulled the THERMOSTAT and it was BAD..I mean the brass barrel was grooved from the spring,put it in boiling water and it was very very slow to open...Long story short...it was bad. bought a new one at ford, first coolant filter and everything drained out of block there was maybe a 9mm bullet case of particles...(this was the 2nd flush.) Took it out and drove it like I stole it....4psi at 55,,,7psi at 75 wot. Thanks for all the input!!
Last edited by Stu798; 02-17-2013 at 11:55 AM.
Reason: more info