94 ranger heater problem

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clemjr - 06 Nov 2006 14:20 GMT

My 94 Ranger with 2.3 4 cylinder engine has a new thermostat in it and no
heat comes out of heater. One heater hose gets hot & the other one is just
lukewarm.Why aren't both hoses quite warm in this mild weather? Don't seem
to be any circulation. Anybody know where to start looking for problem?
Thank you for any information.

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Big Al - 06 Nov 2006 15:05 GMT

> My 94 Ranger with 2.3 4 cylinder engine has a new thermostat in it and no
> heat comes out of heater. One heater hose gets hot & the other one is just
> lukewarm.Why aren't both hoses quite warm in this mild weather? Don't seem
> to be any circulation. Anybody know where to start looking for problem?
> Thank you for any information.

Because water is not circulating through the heater core for some reason.

Al

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Backyard Mechanic - 06 Nov 2006 16:50 GMT

> My 94 Ranger with 2.3 4 cylinder engine has a new thermostat in it and
> no heat comes out of heater. One heater hose gets hot & the other one
> is just lukewarm.Why aren't both hoses quite warm in this mild
> weather? Don't seem to be any circulation. Anybody know where to start
> looking for problem? Thank you for any information.

Likey plugged... seen evidence of rusty coolant in the past or present?

Some vehicles have a flow restrictor on the 'hot' side at firewall.

if you are lucky, it's plugged.... but DO NOT remove it.

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