A thermostat is one cause of over heating engines.The "Related Question" below lists a few other suspects to investigate that can also contribute to overheating.
Fiesta's have a common fault with the heater control valve failing closed. You can get a new one from Eaby for £15
New flush valve may be needed.
valve cover gasket
Yes. It can be replaced.
The valve is not be diverting all the water. This valve may need to be replaced.
Used on heating/cooling systems. Allows uninterrupted circulation through heating/cooling unit or heating/cooling system using 3-way valve.
Assuming you are getting that measurement at the valve would indicate a strong pilot generator and if the valve still will not open then I would pronounce the gas valve DOA. To replace the valve cost can vary from $350 to $650 depending on the Contractor due keep in mind that you've replaced the Pilot Generator and now a valve to finsh the job right install a new Pilot Body with the correct orifice and that will round out a reliable system. Good luck! Tim J&K Heating and Cooling Inc.
Remove the head and have the valve reseated or replaced.
changing the valve cover gasket will not fix an over heating problem u need to check out the cooling system. Radiator, water pump, hoses, belts
Dodge was able to meet the emission requirements with out an EGR valve. Nothing replaced it.
To connect a heater control valve on a mark 5 fiesta all the terminals must be correctly connected. The color coding is used to ensure that the terminals are correctly connected.
inlet 0.20 exhaust 0.30
The Ford Festiva ECU valve can be found on the firewall in the engine compartment. The valve will be on the drivers side of the engine compartment.
This vehicle does not have a bleed valve, it is not needed.
DID U Clear the code B 4 U rechecked ?? Did U clean Out the Passage ways where the EGR Valve goes .
its behind the air filter
replaced crank case valve location at valve cover
The PCV valve for a 2000 Blazer is mounted in the top of the valve cover. The valve plugs in and easily replaced.
If you did not replace the expansion block valve and the receiver drier then you will need to do this as well..............
You might need to change your throttle position sensor.
THIS IS A COMMON FAULT ON FIESTA'S THERE IS A HEATER CONTROL VALVE INSIDE THE ENGINE BAY JUST BELOW THE CENTRE OF THE WINDSCREEN WHICH HAS THE COOLANT PIPES CONECTED TO IT. IT IS A CHEAP PART TO REPLACE AND IS EASY TO FIT.
inlett is 0.2 mm outlett is 0.3 mm
its screwed in the right hand side of the engine
The Thermostat and Temp and Press Valve is faulty and needs to be replaced. or the PRV (pressure reducing valve) is dirty and must be replaced