Question about 2002 Ford F250 Super Duty SuperCab
My truck starts up fine and runs great until it's idle. At stop lights, in park, reverse, etc. If I keep the accelerator on, it runs, but the minute my foot comes off, it dies. Any ideas?
You can try several things. I am going to say it is probably the TPS-Throttle Position Sensor. This is located on the airhorn and usually on the drivers side. The butterfly shaft connects to the TPS and the TPS is held on by 2 screws and has 1 electric connector. If this cures your problem you are okay, however if you still want more RPM, the opposite side of the butterfly flap has a set hex screw which will allow more RPM like a carb.
There is usually an elongnated slot on the TPS which can be slightly adjusted to help.
You can get a free scan at Autozone or Oreillys and see if anything coded.
Posted on Sep 28, 2009
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Posted on Jan 02, 2017
SOURCE: 2002 Escape
no...the valve can be replaced without any "computer change"...the PCM constantly monitors variations in sensor signal strength and accommodates changes to compensate for this. A new valve will not "un-calibrate" the PCM. The PCM will merely begin a new "data record" for it....with possible slow results at first lasting from as short as one minute to possibly nearly a week of driving.
Posted on Jul 07, 2008
SOURCE: 99 F250 V10 Sputtering
It takes just one of the coil on Plug units to cause sputtering and severe shaking. Fortunately the prices have dropped slightly for the coil units. The bad news is it is still close to 100 bucks from the Ford dealers. I have had to replace 3 of these on my 1999 F250 superduty V-10 since I bought it new. I believe there may be some compatible aftermarket units out there for high performance V-8 engines, but can not confirm compatibility.
Posted on Jan 11, 2009
DTC = P0720
footnote b = MIL (malfunction indicator light) comes on after 2nd occurance
footnote c = tranny control indicator light (TCIL) flashes
circuit = OSS = output shaft speed sensor in the tranny (not the variable speed sensor (VSS) in the diff).
condition = OSS sensor circuit malfunction
probable causes = Short/open circuit, sensor, PCM
My guess? Replacing the OSS will take care of it. I hope you don't have a faulty PCM.
Posted on Mar 09, 2009
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