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post #1 of 8 Old 02-12-2014, 08:04 AM Thread Starter
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Question WTF!!!! Anybody?

So, I'm sitting at a stop light, the engine has been running for 15-20 minutes on lite traffic roadway at 35- 40 MPH, no chip. The light turns green I step on the peddle and, nothing, just keeps idling at normal speed for 1 to 1 and a half second length of time then takes off like it should have when I stepped on the peddle. What's happening? anybody?
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post #2 of 8 Old 02-12-2014, 08:15 AM
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Could be many things. But I would lean toward throttle position sensor.



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post #3 of 8 Old 02-12-2014, 09:52 AM
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that or the idle validation switch

94.5 F250 Reg Cab 4x4 5 speed 4.10 276000 plus miles

97 F350 Crew Cab LB 4x4 5 speed 3.55 320000 plus miles (parts truck)



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post #4 of 8 Old 02-12-2014, 10:18 AM
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TPS would be my first thing too look at

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post #5 of 8 Old 02-12-2014, 11:44 AM Thread Starter
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How do I check the TPS out? 12 volt tester or is it more complicated?
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post #6 of 8 Old 02-12-2014, 02:43 PM
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I believe you'd have to get it to fail or delay again to see it with a meter. Has the problem re-occured? If not, I'd just swap out the sensor see if it happens again, if not you fixed it, if it does return the sensor, or keep it for a spare.

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post #7 of 8 Old 02-12-2014, 03:35 PM
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I would try cleaning the two switches on the pedal assembly first before replacing anything

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post #8 of 8 Old 02-12-2014, 03:48 PM
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Quote:
Originally Posted by timlsalem View Post
How do I check the TPS out? 12 volt tester or is it more complicated?
there is a testing procedure but i do not know it. i think all you need is a multi meter

94.5 F250 Reg Cab 4x4 5 speed 4.10 276000 plus miles

97 F350 Crew Cab LB 4x4 5 speed 3.55 320000 plus miles (parts truck)



Quote:
Originally Posted by alberta 7.3 View Post
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