2004 explorer limited v8 wont excellerate but idals changed tps still wont work

They are under the coils.

It's not going to cause "problems" per say, but it will change the gearing ration between the engine and the wheels. A higher number will give you more low end pulling power (better acceleration), and lower top speed, and, theoretically, less fuel mileage. Limited slip prevents one wheel from turning faster than the other (e.g. - spinning in mud or snow), causing the vehicle to lose traction and turn to one side.

Sounds like a bad throttle position sensor (TPS). Go to Auto Zone for a free scan & go from there. If that's the issue, It's a relatively simple DIY fix. Plenty of how to articles/videos online. Google is your friend.

What was the reason for replacing the TPS in the first place?

tune it up my friend

If your thermostat is bad, it will cause the ecu to keep the fan running at high speed since the engine is remaining hot from limited coolant flow. Have the thermostat checked and changed if it has never yet been replaced.

There is no tune -up for your car

I have the same car ,V8 --- only spark plugs


You have a bad COP Ignition Coil -- give us the code PO301 thru PO308

Change the front (2) O2 Sensors at 100,000 miles

Change spark plugs every 3 years or 60,000 miles

Clean MAF Sensor once or twice a year

If the Trans Slips ---STOP USING IT -- & change the solenoid pressure
control pack, inside trans oil pan

The bad coil is spiking the PCM & the signal comes back on the TPS
Sensor & you get throttle body (TACM) codes,forget that,work on the coils

Check you fuel pressure, pressure regulator and TPS.

V8 or V6

Cyl 1 thru3 or 4 ---front to back --pass side

Cyl 4 thru 6 --or 5 thru 8 in case of V8 --driver side

V6 1-4-2-5-3-6

V8 1-3-7-2-6-5-4-8

Did you check fuel pressure? Fuel filter fairly new? Air filter clean and all duct work tight? Battery voltage good when engine is running? Check Throttle Position Sensor for codes and values. Also Ignition coils go bad on these ,as often as you change your socks. TPS is avail on line and auto parts store. You do not have to go to dealer or change entire throttle body, just the sensor,if bad.


You will need a new TPS Sensor,Egr Valve, Ignition Coil or two and a Transmission Solenoid Pack,pretty soon. I have a 2004 V8 L/S. Tough car to troubleshoot and a never ending saga,as is most Fords.