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Old 07-29-2013, 02:11 PM
Simple guy Simple guy is offline
Dodge Ram Forum Senior Member
Join Date: Jun 2013
Location: Pottstown, Pa
Age: 27
Posts: 253
Gender: Male
Vehicle: 2003 Ram 1500
Trim Level: SLT QC 4x4
Color: Mineral grey
Engine: 2002-2003 360ci (5.9L) Magnum V8 245hp 335lb/ft
Rep Power: 2
Simple guy will become famous soon enoughSimple guy will become famous soon enough

have you tried cleaning out the fins? squirt a hose from the inside.. other than that maybe corrosion on the inside of the radiator. Might be worth it to take it to a radiator shop to be rodded if you can see any signs of corrosion from the cap.

A coolant system is fairly simple. Fan, Radiator, heater core, pump, thermostat, coolant passages, hoses, temp sensors and the cap. just check off each part of the system and rule it out. process of elimination. it's how the pros do it. Diagnostic trees.

Edit: almost forgot the most important part- The coolant.
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