Question about 2001 Ford Focus
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Posted on Jan 02, 2017
Follow the upper radiator hose to where it attaches to a housing (2bolts hold the housing in place) remove the hose clamp here and then remove the housing bolts, inside the housing is your thermostat. Clean off the surface of the housing, and where it attaches to the engine. Install the thermostat, and a new gasket (or O -ring ), carefully replace the housing, being sure the thermostat doesn't slip out of position, tighten the housing bolts, reattach the radiator hose to the housing, add coolant to proper level, check for leaks, u r good to go! Make sure the thermostat is installed in the right direction, if put in backwards the car will overheat. countrycurt0
Posted on Oct 14, 2008
SOURCE: 2002 ford focus p0401
Here is a list of possible causes for a PO401, hope this helps.
Posted on Feb 10, 2009
I recommend flushing the radiator thoroughly if not done recently. there seems to be some sort of blockage in the radiator at this time. if you get lots of metal fragments that are flushed out during this flush, i will then recommend a rebuild on the radiator or replacement of the radiator. make sure the cooling fans are cycling on time as well.
Posted on May 21, 2009
There is a set spec, but for the DIY mechanic,,
Using a !/4 " drive, with the correct long socket, apply a FIRM effort on the wrench, but obviously not too much, as to sheer the studs. Always use a NEW gasket on all mating surfaces.
Posted on Aug 28, 2009
Testimonial: "a specific torque setting would be better !!"
Follow the upper radiator hose from radiator to the engine where it connects to the engine thermostat will sit under that housing held on by two small bolt's.Hope this was very helpful,good luck.
Posted on May 13, 2010
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