Throttle pedal won't work... and stuff - Ford Powerstroke Diesel Forum
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post #1 of 10 Old 11-03-2009, 04:08 PM Thread Starter
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Throttle pedal won't work... and stuff

So here is a weird one.

1996 E350 PS. Engine fires right up. I let 'er idle for a minute or two then hit the pedal. Nothing.... no response. The Check engine light goes on. I wait for a few minutes, I touch the throttle and it works fine with no check engine light. I notice that when the throttle starts working again I can just hear what sounds like a relay clicking behind the dash someplace. Once it starts it runs fine....

For now.

Any ideas?

Ron
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post #2 of 10 Old 11-03-2009, 06:18 PM
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Originally Posted by Slamaxe View Post
So here is a weird one.

1996 E350 PS. Engine fires right up. I let 'er idle for a minute or two then hit the pedal. Nothing.... no response. The Check engine light goes on. I wait for a few minutes, I touch the throttle and it works fine with no check engine light. I notice that when the throttle starts working again I can just hear what sounds like a relay clicking behind the dash someplace. Once it starts it runs fine....

For now.

Any ideas?

Ron
Well my truck did the same, I unplugged the IVS and the TPS connectors clean them very well and put a little of dielectric grease and it has been working fine since then. My 0.02. good luck.
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post #3 of 10 Old 11-03-2009, 06:24 PM
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I had the same thing happen while driving down the road, ended up doing the exact same thing that the post above me did... has worked so far. Hopefully its that easy for you, or your TPS is going bad. The clicking sound is from your gas pedal, get down there to see and push the pedal and you can see how the whole thing works and will see where that click is coming from.

MATT

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post #4 of 10 Old 11-03-2009, 07:23 PM
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X3!!

Pete in San Ramon

2005 F250 6.0 4X4 Lariat CC short bed (stock)

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post #5 of 10 Old 11-03-2009, 07:36 PM Thread Starter
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Thanks!

I looked those up on "Alldata" and sure enough it sounds like what could be giving me fits. They say

Quote:
The Idle Validation Switch (IVS) provides the powertrain control module (PCM ) with a redundant signal to verify when the accelerator pedal and shaft is in the idle position. Any detected malfunction of the idle validation switch (IVS ) will illuminate the Check Engine Light and the engine will operate at low idle only.
The TPS is probably sending a conflicting signal which explains why there is no check light till I depress the pedal.

Might have something to do with the temperatures since I haven't had problems during the warmer months but last year it did the same thing a few times.

I'll dive in tomorrow afternoon and see what I get.

Ron
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post #6 of 10 Old 11-03-2009, 08:11 PM
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Alldata Is better than sliced bread! Darn nice rig by the way.

Pete in San Ramon

2005 F250 6.0 4X4 Lariat CC short bed (stock)

1997 F250 7.3 4X4 XLT Reg. cab (stock)

1986 F250 6.9 4X4 XLT Gone but not forgotten



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post #7 of 10 Old 11-10-2009, 08:40 PM Thread Starter
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Thanks guys... That was it. The TPS was dirty. Cleaned it up and all is good again.

There be wizards around here!

Ron
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post #8 of 10 Old 11-10-2009, 08:44 PM
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Originally Posted by Slamaxe View Post
Thanks guys... That was it. The TPS was dirty. Cleaned it up and all is good again.

There be wizards around here!

Ron
Good work on the easy fix man. Nothing beats cheap and easy

MATT

Now featuring a 6.4 fat bottum 6 speed
95 f250--238k and counting
RDS stage I's-TW live tuned-Dana 60 swap-9" lift/40x13.5x20 ProComps-ZF5 swap/short throw/South Bend CON OFE-Iron Bull front-AFE CAI-SD innercooler-Fab Tech traction bars-MBRP DP/6" black miters-Autometer boost/pyro

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post #9 of 10 Old 11-10-2009, 09:24 PM
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Good deal! Glad you got it squared away!

Pete in San Ramon

2005 F250 6.0 4X4 Lariat CC short bed (stock)

1997 F250 7.3 4X4 XLT Reg. cab (stock)

1986 F250 6.9 4X4 XLT Gone but not forgotten



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post #10 of 10 Old 11-11-2009, 09:19 AM
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Good deal! Glad you got it squared away!
X3, glad to heard, every thing is OK now.
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