Question about 2004 Nissan XTerra
Once the engine gets hot it gos past the line. I replaced thrmostat and fan clutch. The water pump is workng
How do you know the water pump works?
Is the radiator clean outside and inside?
Remove the hoses and flush it out.
Is the thermostat in upside down?
Have you pressure tested for a bad head gasket? Leave the rad cap off and look for bubbles.
Posted on Aug 03, 2010
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Posted on Jan 02, 2017
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Physically look in the radiator under the cap for coolant level, and check the valve in the cap for sticking. If air is present in the radiator it can't get out, and more coolant can't get in,(from the overflow). Either clean the cap or replace it and check that it is the CORRECT cap.
Radiator fins dirty, clean with a strong stream of water, not high pressure water.
Radiator clogged, have it boiled out, or replace.
Thermostat stuck open or shut, replace it.
Water pump worn out, can no longer move enough coolant, replace it.
Fan shroud broken or missing....
Electric Fan(s) not working, Check the fan, relay, fuse and engine temperature sensor's.
Belt driven fan, belt slipping, fan clutch is bad, fan blades have flattened out.
Air dam under front bumper is gone, loose, or broken. It actually has a purpose other than scraping on the driveway or curbs. It forces air up into and thru the condenser and radiator. If it
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