7.3 surging

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Oct 17, 2013 | 02:06 PM

totavikid

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7.3 surging

I have a 02 7.3 that has a surging problem at all speeds but seems to go away once I engage the cruise control. Any ideas?

Oct 17, 2013 | 03:02 PM

thomabb

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Have your throttle position sensor checked.

Oct 17, 2013 | 05:21 PM

totavikid

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7.3 surging

what is required to check the throttle position sensor?

Oct 18, 2013 | 07:41 AM

thomabb

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Where are you? Someone on this board with a scanner that can log live data may be near you and willing to check it.

Oct 18, 2013 | 08:03 AM

thomabb

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If you have a multimeter, you can probe the voltage output - key on engine off - I think it is like 0.4 volts at idle and 4.5 volts at the floor. The key to your issue is the voltage should not vary if the pedal position isn't changing.

Oct 28, 2013 | 09:35 AM

totavikid

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Can the sensor be replaced without replacing the whole pedal assembly and where can i get one? Dealer wants upwards of 200 for a pedal. Sad thing is I just replaced the pedal a couple of years ago

Oct 28, 2013 | 11:34 AM

HKusp

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Joined: Jun 2007

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From: Hampton, Maryland.

It depends on what year your truck is (I think) whether you can change just the TPS or have to do the whole pedal assembly. I am not sure what years have the whole assembly and which you can change the TPS separate. But, you can try cleaning it with electrical contact cleaner first. A lot of times it takes care of minor issues like you are describing, if that is what the problem is to begin with. I would try that before replacing anything, it's obviously much cheaper.