Question about 2000 Ford Expedition

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Ford expedition You sent a response to my question earlier about replacing the thermostat, but the temp guage does not work. That is why I asked if that could be causing it to always be in cold start mode. I will replace the thermostat too, but was wondering if the temp sending unit could also cause this? Thanks Derek

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  • notfordguy Nov 12, 2008

    It was the cylinder head temperature sending unit. It is located on the drivers side head in the front under the intake manifold. Sounds like a pain but all you really have to do is take the alternator off and you can get to it pretty easily. Took me about an hour total.



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That could be the problem check for voltage and a good ground at the sending unit

Posted on Nov 12, 2008


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Coolant temperature sensor location on 97 ford expedition

I believe they are located in the intake manifold somewhere. Make sure the one that tells the computer the coolant temp is ACTUALLY giving out the correct temperature. I had a bad one one time in a 1993 Ford F-150, 5.8L....... no check engine light came on but hard to start. The bad sensor was telling the computer it was 32 degrees F when it was almost 80 degrees outside.!!
Garbage in=Garbage out.

Here is a video link from Youtube. There are 2 sensors, 1 for the guage and the other tells the on-board computer how hot/cold the coolant is. The one for the guage has 1-wire and the other one has 2 wires.
Hope this helps, ask more if you need to. What kind of problem are you having? No heat inside? Guage needle not getting into the normal area?

1997 Ford Expedition 5 4L V8 Triton Engine Coolant Temperature ECT Sensor...

Oct 20, 2015 | Ford Cars & Trucks

1 Answer

My car is a 2004 buick century. Sometimes I get cold air instead of heat and sometimes the temp guage climbs. why is this happening?

Could be air pockets in the cooling system if it is not full of liquid coolant, or a problem with the thermostat.

Feb 10, 2014 | 2000 Ford Expedition

1 Answer

My expedition has been dropping some oily orange stuff from the water container, we change the radioter but that thing keeps coming out and we don't know what it my be. Can you guys help me please?

sounds like overheatimg ,,,,,,, keep an eye on temp guage ,,,, overheating can be small like a thermostat or big like a head gasket ,,,, the car is old so it might be in need of a flush out ,,,, or water pump may not be circulating the coolent ,,, also rad fan may not be working ,,,, if you are a city driver mostly check if rad fan works

Dec 01, 2013 | 1999 Ford Expedition

2 Answers

Heater wont get hot

  1. is engine reaching operating temp? ( temp guage in center after 20 minuites)
  2. if not replace engine thermostat
  3. if so there is a small electric motor that operates the blend door under the dash on the air distribution box.
  4. if you have heard ticking coming from dash when adjusting temp knob the blend door acuator is probably defective
  6. Parts aval from dealer approx ($150.)

Jul 29, 2010 | 2003 Ford Expedition

1 Answer

Tempeture guage not working and heater is blowing out very little hot air on my ford galaxy

you need to get the thermostat changed. The thermostat controls how much coolant runs around the engine and sends signals to your temp gauge to indicate how hot the engine is.
if the thermostat is faulty it wont sent signals to the temp gauge and wont open up to allow coolant to run around the system. Your heating is run by coolant, behind the dash there is the heater matrix hot coolant runs into the matrix which gets blown inside the cab.
Fitting a new thermostat will fix all the heating and gauge problems. if your technical minded you can buy a thermostat from an autofactor (or ford, but they are expensive from ford). a garage will charge about £30-£100 ish for a new one.

hope this helps :-)

Feb 10, 2010 | 2001 Ford Excursion

1 Answer

Temp guage dont read

U are talking about two different sending units, one is the Engine Coolant Temp sensor, the other is the temp guage sender, sounds like you have a bad thermostat, if the engine doesn't reach the proper operating temp it will set a code for the engine coolant temp sensor, and the guage will not move or move very little, replace your thermostat and both problems will go away.

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1 Answer

No heat after changing thermostat

i mean heat and cooling for the seat, which control are on the door

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2 Answers

2000 Ford Expedition Overheating

this may be a cluster,wiring or sending unit problem.ask your dealer how hot the engine was getting,with a scanner they can tell what temp the coolant is at.yes your temp gague is rising but is the engine even overheating ?

Nov 05, 2008 | 1999 Ford Expedition

1 Answer


You need to change the thermostat, it must be stuck open and the computer thinks the engine is always cold, hence the fast idle and smoke.

Sep 22, 2008 | 2000 Ford Expedition

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