Question about 1995 Dodge Ram 2500
Not much heat in cab, new fan, antifreeze full and good to -45*F thermostat is good, temp guage read never over 200 unless snowplow in on and then can almost peg guage and then I get some heat, 5/8 line under hood get hot also.
Start with engine cold and rad cap off, with HEATER ON. Let run until up to operating temperature and watch level in rad and top up as needed. Rev engine slightly from time to time once warmed up to help increase flow to heater core. You should see flow in top of rad once thermostat opens. Make sure you let it run like that with cap off until you see flow in rad, 2 or 3 times. Make sure heater is on the entire time. Top up as needed, put rad cap back on properly, top up return bottle and see if that helps with heat problem. Also feel both hoses to heater core. A noticeable difference in temperature between the 2 indicates flow valve not opening, or partially, or a plugged heater core. There is an easy cure for plugged core if it turns out to be the cause, let me know.
Posted on Jan 01, 2014
Testimonial: "Will give a try later today, thanks."
Is both heater hoses hot? Could need radiator and heater core flush. Water pump propellers could be detoriated. I have seen this on vehicles before. Just some ideas to look at.
Posted on Jan 01, 2014
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Posted on Jan 02, 2017
SOURCE: electric cooling fans will work.
The fans are actuated by coolant temp in the radiator. It is possible to have overheated coolant in the radiator, causing the steam, and your engine not overheating...the temp sensor for your engine is reflecting the engine temp, not the temp of the coolant in the radiator. You problem could be a bad temp sensor at the radiator...not allowing the fans to come on. Good Luck! I hope you find this to be very helpful!
Posted on Dec 14, 2009
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