Question about Cars & Trucks
I filled the radiator and the heat came back on and eng. cooled, but only for a few minutes. no water was leaking on ground, what next???
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Posted on Jan 02, 2017
Problem is most likely the water pump.Have seen several of these doing this on the 5.4L. Impeller fins were damaged on the ones that I have seen.
Posted on Feb 20, 2009
sounds more like the thermostat may be failing. generally a water pump starts leaking out of the "weep" hole in the casting before it quits. just look at the front of the water pump for a greenish streak or an obvious leak.
if you also suspect you heater core may be getting plugged now would be a good time to back flush it to get rid of some of the gunk.
Posted on Oct 22, 2009
The radiator leak needs to be fixed obviously and the cooling fans need to be checked for proper function.
When the radiator leaks, the coolant is replaced by air. The air is trapped in the engine cooling system and can not escape because of the leak and does not allow the coolant to circulate, causing an overheat condition.
The air in the cooling system does not conduct heat properly and caused the cooling fan to not start there by adding to the overheated condition.
Fix the leak, make sure the air is purged from the system and make sure the cooling fans work after the leak is fixed.
Posted on Dec 08, 2009
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