Question about Cars & Trucks
Did you replace the thermostat with a brand new unit . If so pull it out and check it in water with a thermometer . Suspend the unit in water to the mounting plate and bring the water to the boil . The flap should start opening at the lower reading set on the body and be fully opened at the higher reading . If the flap is partially open at cold then replace it as it is unserviceable to start with. Thermostats can be bought with at least 2 temperature temp ranges depending on the area of operation so get a higher opening reading one for your purposes.
Posted on Feb 10, 2014
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Posted on Jan 02, 2017
Since your blower is working and it is a heat issue,thats where we'll
start,First thing is have you checked the coolant level in the radiator when
engine is cold,make sure it is filled to top,next verify you have coolant in
reserve ,Start your van and get it up to normal operation temperature,If your
heat gauge on the dash works correctly it should be 190 degrees,Now lift the
hood and locate the two heater hoses going into the heater assembly at the fire
wall,Both hoses should be hot to hold on to,if both are hot and no heat inside
your problem will be the blend air door in heater assembly.
if neither hose is that hot you need to replace the thermostat in the engine to get it up to 195 degrees.
if one hose is hot and one is luke warm then the heater core is blocked and to blame. hope this helps you.
Posted on Jan 02, 2010
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