EBPV:Exhaust brake Help

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Dec 17, 2006 | 10:33 AM

#16

Kwikkordead

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Joined: Jun 2004

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From: Rio Rico, AZ.

Sorry for the crude picture, this is the way that mine is wired now. It's a six pole three position On/Off/On switch that enables me to run with the factory config (EBPV working as designed), or completly disabled in the Off position, or Exhaust brake engaged. I never get a light.

Dec 17, 2006 | 10:39 AM

#17

Uzumati

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Joined: Jun 2006

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From: Central, Al

You shouldnt get a light with that config kwik but he said he cut the wires to the pcm and taped them off. That is why he is setting the light at key on.

Dec 17, 2006 | 10:47 AM

#18

Kwikkordead

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From: Rio Rico, AZ.

Except that when my switch is in the Off position, it's the same as being cut. The circuit is wide open on both wires to the PCM.
That's why I'm thinking it odd.

Dec 17, 2006 | 10:51 AM

#19

rebelchevy02

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Joined: May 2006

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From: Milroy, PA

Quote:

Originally Posted by amiller93

You shouldnt get a light with that config kwik but he said he cut the wires to the pcm and taped them off. That is why he is setting the light at key on.

I know your talking about "Brutusbux" but mine is just unplugged, im not going to use it as a exhaust brake, my luck it would stick, and melt my turbo, so i just unplugged it so i can drive when its cold in the winter

Dec 17, 2006 | 10:54 AM

#20

Uzumati

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From: Central, Al

That is odd cause if your switch has the solenoid disconnected at Key On when the PCM runs its self test it should set the light. I wonder if Ford changed the self test programming on some of the PCM codes?

Dec 17, 2006 | 10:58 AM

#21

rebelchevy02

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From: Milroy, PA

Im not sure, but im not complaining either, SES, and other lights on the dash bother me. It does seem to cycle the other tests, abs, etc.

Dec 17, 2006 | 11:05 AM

#22

clintl

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Joined: Sep 2006

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so i am getting ready to clean my epbv tube until i read this post will the same happen to me i mean not being able to start the vehicle if so how can i avoid this if i can?sorry to interfear on this post.oh can you spray something down the tube to help ease the soot to come out thanks

Dec 17, 2006 | 11:08 AM

#23

Uzumati

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Joined: Jun 2006

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From: Central, Al

Cleaning the tube won't cause any problems (unless it gets broken).

The problem here is the exhaust brake mod at the EBP solenoid. The sensor and tube are on the opposite end of the motor.

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Dec 17, 2006 | 11:48 AM

#24

rebelchevy02

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From: Milroy, PA

Quote:

Originally Posted by clintl

I cleaned mine out without any problems, although it didnt fix my problem, my problem is that the ebv is sticking... Cleaning out the sensor didnt cause me any problems at all. I used a piece of wire in a drill, because i was unsure how far in the bottom of the sensor was.

Dec 17, 2006 | 02:42 PM

#25

brutusbux

Thread Starter

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Well I put it back to factory to make sure I didn't short anything out...and everything is fine...no more code...I was wanting to eliminate the PCM control of the EBPV due to sticking issues...Another concern I have is the hard start issue that arouse after I cut the solenoid wires...I got it started last night and it ran fine and restarted without any problems, now this morning it did not want to start either...I pulled codes (same code) and then cleared and it started right up (this was before I reconnected the factory wires)...after that it has started everytime...does not having the EBPV functional and cold temps make for hard starts (30 overnite)...I did not think this was an issue, just slower warm up time, just trying to understand the hard start

Dec 17, 2006 | 05:10 PM

#26

jtharvey

Lead Driver

Joined: Oct 2004

Posts: 7,413

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From: Columbia, MO

Quote:

Originally Posted by amiller93

I wonder if Ford changed the self test programming on some of the PCM codes?

This may be. My EBPV wires from the PCM are cut and at a dead end. The only power to the solenoid comes from the switch in the cab. But, that has never caused my SES light to come on. There is a soft code stored, indicating a problem with the EBPV, but no SES light.

Dec 17, 2006 | 05:10 PM

#27

Uzumati

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From: Central, Al

It shouldn't effect the actuall start the EBPV is not commanded until after starting.

Dec 17, 2006 | 07:16 PM

#28

FARM69

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Joined: Jan 2004

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From: Kearney, Nebr

How does one clean the EBPV? I will be doing this to my rig later this week. I also don't want it to stick if I'm using it for a break.

Dec 17, 2006 | 07:52 PM

#29

Kwikkordead

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Joined: Jun 2004

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From: Rio Rico, AZ.

Quote:

Originally Posted by FARM69

How does one clean the EBPV? I will be doing this to my rig later this week. I also don't want it to stick if I'm using it for a break.

They are not actually talking about cleaning the EBPV itself, but the sensor that reads how much exhaust back pressure is being generated. It's mounted up front in front of the HPOP, toward the starboard side of the truck. There is a steel tube a little larger than a brake line going from the bottom of that sensor to the exhaust manifold that often gets clogged with soot.