Question about 2000 Ford Expedition

1 Answer

ETC If my engine temerature sensor goes out on a 2000 Ford Expidition with a 5.4L will it tell the cold start sensor that it is always cold and cause it to run in cold start mode(really rich)? My temp guage stopped working and now it seems to be stuck in cold start mode, its hard to start after idling and idles fast fo ra long time after you start it. Thank you in advance!

Posted by on

  • notfordguy Sep 22, 2008

    The temp guage is not working either, would that affect the cold start sensor? That is why I assumed it was the temp sending unit.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Ford Master
  • 71,525 Answers

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.

Posted on Sep 22, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why 01 honda odyssey wont run when warm until cools down sometimes dies when driving it cools down n starts


the coolant temperature sensor is faulty
when cold the sensor tells the computer its cold adding more fuel into the engine, when warm the engine needs less fuel so the temperature sensor tells the computer its warmed up and to use less fuel. when this snesor goes bad it always reads as if the engine was cold so the computer adds more fuel than needed making the engine not start. Trust me on this ive had this problem happen to me before

Aug 17, 2014 | Cars & Trucks

1 Answer

I have a 98 ford expidition and the check engine light came on. i had it scanned and the code that came up is the temp sensor. i bought the sensor and cant find where it goes. can anyone help me and tell...


was it coolant temp sensor? Or the cylinder head temp sensor

also what engine size is in your expedition

Jay
also if you have P code (scanned engine code), let me know that also

Jun 06, 2011 | 1998 Ford Expedition

1 Answer

Ford focus 1999 2.0 ltr,engine turns but doesnt always start


If you hear that the engine cranks when you try to start the car then that is good. It means that the starter is working. If the starter cranks but the engine won't start, there could be wide range of problems. Here are some of the most common:
- Problems with fuel delivery system (e.g bad fuel pump, fuel pump relay, clogged fuel screen, etc.)
- Problem with engine electronics (e.g crank sensor, cam sensor, air flow sensor, power relay, engine computer, etc.)
- Ignition system problems, especially on older vehicles with the distributor (e.g bad ignition coil, commutator, rotor, distributor cap, etc.)
- Defective ignition switch
- Problems with vehicle security system
- Internal engine problems (e.g broken timing belt or gear, low compression, etc.)

Aug 13, 2010 | 2000 Ford Focus

3 Answers

Fuel pump


i have a 2000 expedition when i start it cold .it runs great but when it warms up then it starts missing bad any one know whats wrong or had a problem like this

Feb 18, 2010 | 2000 Ford Expedition

2 Answers

2000 ford super duty 7.3 diesel will not cold start


you need to have the engine coolant switch checked,since the computer relies solely on sensors,the ect tells the computer how cold or hot it is so the computer will make it a rich or lean mixture to start the engine,if it tells the computer that it is 75 degrees the computer will lean the mixture like starting a car in the winter without a choke.

Jan 06, 2010 | 2000 Ford F350 Super Duty Super Cab

1 Answer

Temperature sender


It does sound like the temp sender. If the plug is destroyed so you can not see what wire goes where you either need to look at an identical car or get pin-data to work it out.

The switch will have very small numbers next to each pin, like 31, 12 , 15 etc these tell you the circuit number. Pin data informs you of the color(s) of the wire on that track... so it may say 31 = Green/yellow wire, that means the Green wire with a Yellow stripe goes to pin 31

Follow me???

PS if it is the temp sensor your car will struggle to start from cold as it informs the ECU on fuelling dependent on heat.

*DO NOT* just try putting wires anywhere, you may cause an internal ECU failure and that will be expensive.

Best regards

Lloyd

Dec 07, 2009 | 2001 Nissan Altima

1 Answer

Ford Taurus Part # WT724


sounds like the gauge and sensor r workin properly....but you do have to address that coolant leak...that causes your temp to fluctuate cuz you cooling capacity is being reduced

Nov 13, 2009 | 2000 Ford Taurus

1 Answer

Cooling fan operation


sounds to me like the thermostat is sticking and allowing the car to overheat. with the a/c on the fan comes on and runs constantly to keep the engine cool

Oct 22, 2009 | 2000 Ford Focus

1 Answer

From cold start engine warms to quater temp then cuts out leave to cool then will restart and warm up to normal running temp and stays running well after that till next cold start any ideas? the car is a...


Does the Check Engine light come ON when this happens? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. Otherwise, guesswork. I have MANY ideas that could send you on a wild goose chase. I strongly suspect EMS (Engine Management System) sensor beginning to malfunction as it warms up. First strong suspicion is the crank position sensor (CKP) - however,usually always sets a DTC (i.e., P0335, P0336). The next suspicion is the Engine Coolant Temperature sensor. The ECM uses this sensor's signal to adjust fuel, timing, engine RPM, etc based on engine temp. If malfunctioning at a particuar point during engine warm up, it could be telling the ECM the temperature is LOWER or HIGHER than it ACTUALLY is, resulting in the ECM to increase fuel (flood it) or give it LESS fuel (starve it). If this malfunction lasts long enough, the ECM will usually set a DTC for that sensor circuit, either a Range/Performance code, or a "LOW Input" or "HIGH Input" code.

May 09, 2009 | 2000 Hyundai Elantra

1 Answer

2000 ford expidition


You may have a failing Mass Air Flow sensor, a quick test is to unplug the connector and drive the truck, if it runs better well their you go, the way this works is that the engine processor has failure mode strategy build in, so it substitutes a good signal for the missing one. After that just clear the codes and replace the sensor. The other issue may be fuel pressure, check the pressure and make sure it is ok under a load, a new fuel filter would poss. cure the issue also.

Jul 05, 2008 | 2000 Ford Expedition

Not finding what you are looking for?
2000 Ford Expedition Logo

395 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

71338 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22059 Answers

Ron Lankford

Level 3 Expert

5386 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...