Question about 2004 Ford F350

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6.0 engine goes to 1500 rpm and then down to 500rpm and then stalls. problem in intermittent. so far it starts back up when it does stall Someone said ICS sensor?? If so where located?

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Hi,

It seems that this is actually reffering to the Idle Control system and the Accellerator control system. Both these areas are link so you will need to check each one separately to find the fault.

First check the accelarator cable operation, it should be smooth and not bind or catach at any part of the movement.
There is a position sensor attached to the side of it and there could also be a problem with this.

So your model may have just the TPS sensor on the side or both TPS and cables.
To check the TPS operation you need to check that it is getting a voltage supply to the switch and then as the pedal is depressed down check that the output voltage is porportionate to the travel of the pedal.

So check this area first and let me know what you find, or if you need more information

Thanks

Jason

Posted on Jul 07, 2010

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first off, i see an illegal fast idle ,
and all A/T trannys do that, when the engine rpm fraks up.
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that A/T weakness, is why folks run over kids. (the lame excuse)
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i can not follow your sequence of events.so will ask questions.
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/??????
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ok , in drive, no acceleration, are you saying ,
1: im in A/T drive.
2: the engine is idling at 800 RPM hot or near 1500 cold
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i increase the RPM with my right foot and the car don't move
in DRIVE
as RPM rises above 1500 RPM, you do have a tacho , i see that.
if it does not move with hgher RPMs, the trans is bad or its TCM is bad.
on your car the TCM is hidden deep inside the PCM. back in 1997.

the PCM runs the engine and tranny today.
if something lies to the TCM/PCM the tranny will not go into drive.
on newer 96+ cars, you see the check engine lamp glow.
running (not stalled, stalling this CEL glows all the time)
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not using a scan tool ,means ($7 cost) means you miss all the facts. hard cold real facts.
the ECU can not shift any car with a bad selector switch.
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recap.
does the CEL lamp stay out running at all times.
no, ? then scan it.
do not post car problems with stored, or pending DTCs on any car newer than 1995. or its just wild guessing.. mostly.

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