Well, this can't be good
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Cross-Country
Joined: Jul 2016
Posts: 61
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Well, this can't be good
Black Beauty has developed a problem. She is having a hard time starting. Normally I just hop in and turn the key and she starts right up. Now she cranks and cranks. I have to give her some gas and then try again. She is a 2000 V-10. We were planning to tow the trailer to the lake for New Year's but that' not going to happen. 
Moderator
Joined: Jul 2010
Posts: 12,052
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From: Media PA
Hard/no cold starts and trouble idling when cold can also be a dirty or faulty Idle Air Control valve. The IAC is mounted to the rear of the throttle body and can usually be pulled and cleaned with carb cleaner and put back in service.
Fleet Mechanic
Joined: Feb 2011
Posts: 1,812
Likes: 88
From: Thousand Oaks, CA
With carburetors the accelerator pump would squirt a bit of gas when pushed.
About the only things that move with the throttle pedal is the butterfly in the throttle body and the TPS sensor.
I would check for fuel pressure before messing with the IAC.
If there is no fuel pressure, check for fuel pump power (relay & inertia switch) before changing the pump.
If the gauge panel looks normal the PCM relay is probably good.
The PCM controls the fuel pump relay.
Last edited by R&T Babich; Dec 27, 2016 at 04:10 PM. Reason: If it cranks the neutral/safety switch is good.
5th Wheeling
Joined: Jul 2006
Posts: 32
Likes: 1
From: Tucson, AZ
If it cranks without any indication of firing, try spraying some starting fluid in. IF it fires, even for a bit, it is most likely the fuel pump. Check the fuse with a meter before replacing the pump. Hopefully you have not just filled up if you need to change the pump otherwise you will get to see just how much fuel these beasts hold.
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Fleet Mechanic
Joined: Feb 2011
Posts: 1,812
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From: Thousand Oaks, CA
The fuel pump relays go bad a lot, too.
Checking for 12v on the output side of the inertia switch will help isolate an electrical issue.
For testing you can jumper the output lead of the inertia switch (PK/BK) direct to the battery (20A fuse) to see if the fuel pump turns and the engine should start.
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Lead Driver
Joined: Nov 2012
Posts: 8,304
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From: Salem, VA
IAC valve. It's an easy fast thing to check and you can rule it out fast. Before that though I would do the carb cleaner trick with the intake pulled off and someone cranking it while you sprayed. If it starts then stop spraying. You know it's a fuel issue at that point.
Cargo Master
Joined: Oct 2006
Posts: 2,097
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From: chicago northwest suburbs
Does it start and run on the second try? If so it may be a bad fuel pump check valve letting all the fuel drain back to the tank. If Thai is the problem, turn the key to on for 5 seconds then off, then back on for 5 seconds and then try starting it. If it starts then you have a bad fuel pump. If not then it is a problem on the engine control side.
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Cross-Country
Joined: Jul 2016
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Thanks everyone for the ideas. We are going to take her to the dealer this Thursday. We had planned to go camping over New Year's but the Ex is the tow vehicle so that won't happen! I really love winter camping too, rats.
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Cross-Country
Joined: Jul 2016
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Thanks for all the ideas. We just got her back from the dealer. They say she is fixed, she is not. Does anyone know where I can locate pictures of this IAC valve? I am going camping this weekend and she is going to tow that trailer!
Does anyone know where I can locate pictures of this IAC valve? I am going camping this weekend and she is going to tow that trailer!
FTE Chapter Leader
Joined: Nov 2010
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From: N. IL
You'll be going in an hour if not too cold for your fingers.
https://www.ford-trucks.com/forums/1...e-for-v10.html
https://www.ford-trucks.com/forums/1...e-for-v10.html
Moderator
Joined: Jul 2010
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From: Media PA
Curious, what did the dealer "fix" if it is having the same issues?
