98RamNewbie
Junior Member
- Joined
- May 6, 2013
- Posts
- 1
- Reaction score
- 0
- Ram Year
- 1998
- Engine
- 5.9 magnum
My 98 Ram 5.9 blows luke warm heat. When on low, it is warmer, but as turn fan up it gets cooler. Has been this way since I bought a year ago (but during warm months feels a lot warmer) Recently had flush on heater core and entire system. Also replaced thermostat and reset the temp dial and can hear the blend door "hit" the stops as well as replaced radiator cap. Thought of replacing temp control, but since mechanical do not believe anything in switch for contact, correct?
Both heater hoses and top radiator hose are very hot to touch and lower radiator hose is cool...so in reading various posts to me it doesn't sound like heater core since both are equally hot. Local parts store suggested to use a stronger prestone cleaner than the prestone flush used when it was flushed. Guess I can try it, but since there is no antifreeze smell, no build-up on windshield and floor is dry on passenger side, coupled with hot hoses I wonder if it really is heater core or not. Did notice when replaced thermostat there was some "gunk" floating...before flush. Should I try the cleaner (requires dropping antifreeze and running cleaner with water, cycle again after 50 miles with draining radiator and filling with water, run 10 minutes then drain and fill.) Is there something else I should look at before doing this?
Thanks for any input.
Both heater hoses and top radiator hose are very hot to touch and lower radiator hose is cool...so in reading various posts to me it doesn't sound like heater core since both are equally hot. Local parts store suggested to use a stronger prestone cleaner than the prestone flush used when it was flushed. Guess I can try it, but since there is no antifreeze smell, no build-up on windshield and floor is dry on passenger side, coupled with hot hoses I wonder if it really is heater core or not. Did notice when replaced thermostat there was some "gunk" floating...before flush. Should I try the cleaner (requires dropping antifreeze and running cleaner with water, cycle again after 50 miles with draining radiator and filling with water, run 10 minutes then drain and fill.) Is there something else I should look at before doing this?
Thanks for any input.
