CADILLAC ENGINE OVERHEAT

Cooling Fan Works With Direct Power But Will Not Otherwise. Fuses & Relays Are Good. Maf Has Been Replaced. Based On Research I Am Trying...

So Long Story Short. I Just Bought The Car Listed Above About 5 Days Ago. The Guy I Purchased It From Told Me That He Bought It 14 Years Ago...

Replaced Radiator, Water Pump, Thermostat, Radiator Cap. Flushed Entire System, Water Runs Clear And Flows Fully In All Directions....

Okay, So I Have A V8 Northstar Engine. It Has An Overheating Issue. I Can Fill Full Of Coolant And By The Time I Drive It Over The Bridge...

The Engine Coolant Reservoir Is Full But Does Not Build Up Pressure When The Engine Warms Up. I Checked The Reservoir By Opening The Cap...

This Vehicle Was Driven At The Highway, Next I Noticed The Temperature Gauge Rise. I Stopped And Allow To Cool, I Top Water And It Didn&#...

Replaced Thermostat And Fans. Relays Are All Good And Radiator Flows, And Waterproof Does Not Leak. Heater Does Not Work, And Fan (1)...