Surges when I turn it off
Thread Starter
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Mountain Pass
Joined: May 2015
Posts: 140
Likes: 5
Surges when I turn it off
Hi all,
This first happened a few weeks ago. put her in park turn the key off and. she surged, maybe 2-3k rpm then shut down. Thought it was weird 1 off thing. Today it happened twice.
Anyone run into this?
This first happened a few weeks ago. put her in park turn the key off and. she surged, maybe 2-3k rpm then shut down. Thought it was weird 1 off thing. Today it happened twice.
Anyone run into this?
Cargo Master
Joined: Nov 2005
Posts: 2,766
Likes: 56
From: East Tawas, MI
I guess my first thought was a runaway on the verge.
Are you working the truck hard? If so are you letting it idle and spool down to cool?
Do you have a hard start after this event?
Denny
Are you working the truck hard? If so are you letting it idle and spool down to cool?
Do you have a hard start after this event?
Denny
Thread Starter
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Mountain Pass
Joined: May 2015
Posts: 140
Likes: 5
Not really.
In fact it happened to me a few weeks ago and to my wife twice today. She said she felt it kind of surging while she was driving and then when she put it in park it surged and then back to idle. This is a new 6.4 engine installed about a year ago with 15k miles on her
In fact it happened to me a few weeks ago and to my wife twice today. She said she felt it kind of surging while she was driving and then when she put it in park it surged and then back to idle. This is a new 6.4 engine installed about a year ago with 15k miles on her
Thread Starter
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Mountain Pass
Joined: May 2015
Posts: 140
Likes: 5
Ok, another symptom I just noticed. I was slowly rolling down the street ~20MPH and I can see the Tach gauge go from steady 1500 RPM to 1200RPM to 1700RPM. Almost like the fuel was stopping momentarily and shooting back up.
Cargo Master
Joined: Nov 2005
Posts: 2,766
Likes: 56
From: East Tawas, MI
Just saying,
I think the panel is stumped. Very rare to hear a 6.4 will run with key off. According to most, they don't run with key on, LOL.
I know you have no insight from the whole globe at this point, so I'll stretch a few ideas.
Being a year old engine have you done fuel filters?
Your fuel pedal is fly by wire. Check that out.
You failed to mention anything that's been carved in. Tuner, upfitter switches, portable meth lab heater wired in, etc.
In other words, if you just married my daughter and your having a problem with her, what's the back ground I'm looking at to solve this.
Final point is have you had the truck scanned for codes. If so what do you have. If you haven't go to a ford dealer and have the real codes scanned. You can go to other places, but you may not get the read you need.
Have them do a full diagnostic. Transmission as well. This is the rarest post of a problem I.ve read.
Please keep us informed.
Denny
I think the panel is stumped. Very rare to hear a 6.4 will run with key off. According to most, they don't run with key on, LOL.
I know you have no insight from the whole globe at this point, so I'll stretch a few ideas.
Being a year old engine have you done fuel filters?
Your fuel pedal is fly by wire. Check that out.
You failed to mention anything that's been carved in. Tuner, upfitter switches, portable meth lab heater wired in, etc.
In other words, if you just married my daughter and your having a problem with her, what's the back ground I'm looking at to solve this.
Final point is have you had the truck scanned for codes. If so what do you have. If you haven't go to a ford dealer and have the real codes scanned. You can go to other places, but you may not get the read you need.
Have them do a full diagnostic. Transmission as well. This is the rarest post of a problem I.ve read.
Please keep us informed.
Denny
Thread Starter
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Mountain Pass
Joined: May 2015
Posts: 140
Likes: 5
Thanks Denny,
I appreciate the honesty and you knowledge.
I do want to clarify something, unfortunately my memory is not what it used to be. I thought the serge happened when I turned the truck off but my wife reminded me it was when I put it in park.
I'll have to check my last invoice. I know they did oil and filter in February but I'm not 100% sure they did fuel filters.
Apart from the flux capacitor, it does have a tune, EGR and DEF delete.
I did find a P0219 in the PCM but no SES light. Used forscan for that.
As for marrying your daughter, remember, the problem with polygamy is one too many wives. the problem with monogamy is one too many wives.
I really appreciate the touch back.
I appreciate the honesty and you knowledge.
I do want to clarify something, unfortunately my memory is not what it used to be. I thought the serge happened when I turned the truck off but my wife reminded me it was when I put it in park.
I'll have to check my last invoice. I know they did oil and filter in February but I'm not 100% sure they did fuel filters.
Apart from the flux capacitor, it does have a tune, EGR and DEF delete.
I did find a P0219 in the PCM but no SES light. Used forscan for that.
As for marrying your daughter, remember, the problem with polygamy is one too many wives. the problem with monogamy is one too many wives.
I really appreciate the touch back.
Cargo Master
Joined: Nov 2005
Posts: 2,766
Likes: 56
From: East Tawas, MI
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Mountain Pass
Joined: May 2015
Posts: 140
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Unfortunately I got the truck like that. The EGR and DPF were removed and it was getting 30MPG on the highway. If that tells you what tune I have you're a saint. 
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4wd Low
Joined: Oct 2020
Posts: 10
Likes: 0
----- So I am following this thread, as when I put my 2008 6.4L in park, with AC on... it SURGES to 1,000RPM.... then drops down... NO clue why... My AC also does not work while in PARK or not in Motion-- so I assumed it was some clutch... So staking this thread to see what you find out about ggenovez's Truck...
Thread Starter
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Mountain Pass
Joined: May 2015
Posts: 140
Likes: 5
@DieselDenny Correct. Nothing visible. It has just been tuned probably by a tuner.
So I hit a bump today and the CEL kicked on. Not gun P2263-C. Turbo issue. Is this somehting a shade tree can do or does the cab need to come off?
So I hit a bump today and the CEL kicked on. Not gun P2263-C. Turbo issue. Is this somehting a shade tree can do or does the cab need to come off?
4wd Low
Joined: Oct 2020
Posts: 10
Likes: 0
@DieselDenny Correct. Nothing visible. It has just been tuned probably by a tuner.
So I hit a bump today and the CEL kicked on. Not gun P2263-C. Turbo issue. Is this somehting a shade tree can do or does the cab need to come off?
So I hit a bump today and the CEL kicked on. Not gun P2263-C. Turbo issue. Is this somehting a shade tree can do or does the cab need to come off?
Thread Starter
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Mountain Pass
Joined: May 2015
Posts: 140
Likes: 5
@DieselDenny was that comment for me? I can feel the truck surging at 60mph. like a pulsing on off on off...
I did clear the codes and it returned and brought a friend. P0472. Exhaust pressure sensor A circuit low. That's the EGR pressure switch right?
I did clear the codes and it returned and brought a friend. P0472. Exhaust pressure sensor A circuit low. That's the EGR pressure switch right?