I Have A 2000 Neon With A 2L And No Heat. After Investigation I Found That The Pass. Side Radiator Tank Had A Leak. Going To Replace But Before I Do I Want To Make Sure That This Is The Problem That Is Causing Me To Not Have Heat
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Re: 2000 Dodge Neon Radiator Swap
If rad/cooling system runs low on coolant, it will starve heater core of hot coolant that it needs to put out heat. Fill rad, with heater on, and cap off, to bleed out any air in system while you run it for a while with cap off, and see if that doesn't give you heat back.
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What you are hearing may be normal. There may be air pockets in the cooling system and you are hearing the coolant moving around in the system. Kind of like a coffee pot. As the thermostat opens at 195 degrees the coolant expands and contracts. Make sure the system is full of coolant.
After it heats up, see if the fans are spinning. Turning on the AC can force the fans to spin if the car is already warm.The wire plugs into a fixture on the passenger side fan then a wire from there goes to the driver side fan. On my Neon the fixture shorted out and I bypassed it. so far, so good. -- You may be able to drive if you keep the heater on full - hot.
The radiator has tranny coolant passeges that are pressurized.You obviously sprung a leak in the radiator.Clean everything off w/Engine Degreaser or brake cleaner. Have someone start engine for a moment and look closely at front of radiator facing engine for the leak
if you got heat when its running and almost nothing iddling the heater core inside the car has rectriction idle circulation not enough prestone pass thrue the radiator because of scale when our driving way more circulation more prestone go thrue ¸=more heat you need to flush the radiator inside the car normally i put a radiator flush leave it running longer then what they say go for a drive remove the heater core hose be carefull not to break the pipe use garden hose pass hose water pressure o n both side do it a few time each side flush all the prestone add new prestone you shoul have way more heat good luck p.s some shop might tell you change the heater core that perfect but very big money do it right its cheap and gonna work pierre