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05-25-2017, 12:21 PM
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#1
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Name: Financial Mistake
Title: Too Much Time
Status: Not Here
Join Date: Apr 2017
Member`s Gallery
Posts: 278
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Weird p7100 idle issue
So, I've had an ongoing issue that I haven't had time to bring up, and after a bit of searching, I've gotten nada.
Ferrell stg 3
5,000~ miles since being on the bench.
I have idle set at 840-860~ rpm in neutral with the AC on, that's where the truck likes to be with the 5Ks and ceramic dual disk.
Now... after a longish drive, 60+ miles or an hours worth, the idle will DROP to 730-750 in neutral and gives the truck a slight lope (27° timing plus lower idle being the culprit I assume) ECT around 180-195ish. Runs perfectly aside from that.
Here's the weird part. After the truck is shut off and has time to cool off, say around 30 minutes, BOOM, back up to 860rpm in neutral.
My next move is to call Seth, but I'm genuinely curious if anyone else has ever had this issue or has even heard of it???
Sent from my iPhone using Tapatalk
__________________
P24V, Billet 62/68/14, Billet 475/96/1.32, 27°, Seth's Stg 3 @ 450cc, dual feed, DFI 7x12, Fass240, 110#, 425, p&p/3 angle/oring, ED freeze plugs, BD IC, VP MAX boots, stainless mani, Snow w/m, coolant bypass, CTS2, EAS, POS NV4500, valair quiet dual ceramic
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05-25-2017, 02:16 PM
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#2
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,867
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Curious what your fuel temp and aeration look like.....
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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05-25-2017, 02:32 PM
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#3
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Name: Financial Mistake
Title: Too Much Time
Status: Not Here
Join Date: Apr 2017
Member`s Gallery
Posts: 278
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Aeration "shouldn't" be an issue with the fass, but crazier things have happened
Sent from my iPhone using Tapatalk
__________________
P24V, Billet 62/68/14, Billet 475/96/1.32, 27°, Seth's Stg 3 @ 450cc, dual feed, DFI 7x12, Fass240, 110#, 425, p&p/3 angle/oring, ED freeze plugs, BD IC, VP MAX boots, stainless mani, Snow w/m, coolant bypass, CTS2, EAS, POS NV4500, valair quiet dual ceramic
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05-25-2017, 02:33 PM
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#4
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Name: Financial Mistake
Title: Too Much Time
Status: Not Here
Join Date: Apr 2017
Member`s Gallery
Posts: 278
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Fuel temp would be interesting to see
Sent from my iPhone using Tapatalk
__________________
P24V, Billet 62/68/14, Billet 475/96/1.32, 27°, Seth's Stg 3 @ 450cc, dual feed, DFI 7x12, Fass240, 110#, 425, p&p/3 angle/oring, ED freeze plugs, BD IC, VP MAX boots, stainless mani, Snow w/m, coolant bypass, CTS2, EAS, POS NV4500, valair quiet dual ceramic
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05-25-2017, 02:59 PM
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#5
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Name: jlbayes
Title: Too Much Time
Status: Not Here
Join Date: Mar 2011
Location: michigan
Member`s Gallery
Posts: 2,399
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Have the idle screw actually sitting on the arm? I had to screw with my apps linkage to get the thing right.
__________________
Jacob, 97 rclb
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05-25-2017, 03:11 PM
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#6
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Name: Financial Mistake
Title: Too Much Time
Status: Not Here
Join Date: Apr 2017
Member`s Gallery
Posts: 278
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Quote:
Originally Posted by jlbayes
Have the idle screw actually sitting on the arm? I had to screw with my apps linkage to get the thing right.
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Good point... I don't think that it was, but I will verify.
But that wouldn't explain how the idle goes back up to the initial adjustment after the truck sits for a little while, or at least I don't think it would.
Sent from my iPhone using Tapatalk
__________________
P24V, Billet 62/68/14, Billet 475/96/1.32, 27°, Seth's Stg 3 @ 450cc, dual feed, DFI 7x12, Fass240, 110#, 425, p&p/3 angle/oring, ED freeze plugs, BD IC, VP MAX boots, stainless mani, Snow w/m, coolant bypass, CTS2, EAS, POS NV4500, valair quiet dual ceramic
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05-25-2017, 03:35 PM
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#7
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,867
|
Running a sump?
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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05-25-2017, 03:49 PM
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#8
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Name: Financial Mistake
Title: Too Much Time
Status: Not Here
Join Date: Apr 2017
Member`s Gallery
Posts: 278
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Quote:
Originally Posted by biggy238
Running a sump?
Sent from my XT1575 using Tapatalk
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Yessir.
Beans sump
Fass Titanium 240GPH
Holding 60psi constant
Sent from my iPhone using Tapatalk
__________________
P24V, Billet 62/68/14, Billet 475/96/1.32, 27°, Seth's Stg 3 @ 450cc, dual feed, DFI 7x12, Fass240, 110#, 425, p&p/3 angle/oring, ED freeze plugs, BD IC, VP MAX boots, stainless mani, Snow w/m, coolant bypass, CTS2, EAS, POS NV4500, valair quiet dual ceramic
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05-25-2017, 04:49 PM
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#9
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Name: RonA
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: Liberal ground zero.
Member`s Gallery
Posts: 11,058
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Did you ever try running the stock 12v lift pump? I never had much luck with the electric pumps.
__________________
55 years of work and all I got was a T-shirt.
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05-25-2017, 05:40 PM
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#10
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Name: Financial Mistake
Title: Too Much Time
Status: Not Here
Join Date: Apr 2017
Member`s Gallery
Posts: 278
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Wasn't aware that the 24V cam had the lift pump lobe to use one.
Pressure isn't the problem, and I doubt volume is either, as the truck still runs fantastic, heck, even the idle change is a minor inconvenience at best, just a puzzling condition.
Sent from my iPhone using Tapatalk
__________________
P24V, Billet 62/68/14, Billet 475/96/1.32, 27°, Seth's Stg 3 @ 450cc, dual feed, DFI 7x12, Fass240, 110#, 425, p&p/3 angle/oring, ED freeze plugs, BD IC, VP MAX boots, stainless mani, Snow w/m, coolant bypass, CTS2, EAS, POS NV4500, valair quiet dual ceramic
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05-25-2017, 08:44 PM
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#11
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Name: thundergunder
Title: Getting it done
Status: Not Here
Join Date: Feb 2010
Member`s Gallery
Posts: 206
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.........
__________________
stuff
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05-25-2017, 11:00 PM
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#12
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Name: RonA
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: Liberal ground zero.
Member`s Gallery
Posts: 11,058
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Quote:
Originally Posted by Financial Mistake
Wasn't aware that the 24V cam had the lift pump lobe to use one.
Pressure isn't the problem, and I doubt volume is either, as the truck still runs fantastic, heck, even the idle change is a minor inconvenience at best, just a puzzling condition.
Sent from my iPhone using Tapatalk
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Just curious. After FASS number 3 quit on me I switched to a PDR cam with a lift pump lobe . The p-pumped 24 is a bit different, but I always felt it ran cleaner than a 12V at the same power level, and more reliable than the vp.
__________________
55 years of work and all I got was a T-shirt.
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05-26-2017, 08:08 AM
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#13
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Name: jlbayes
Title: Too Much Time
Status: Not Here
Join Date: Mar 2011
Location: michigan
Member`s Gallery
Posts: 2,399
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Quote:
Originally Posted by Financial Mistake
Good point... I don't think that it was, but I will verify.
But that wouldn't explain how the idle goes back up to the initial adjustment after the truck sits for a little while, or at least I don't think it would.
Sent from my iPhone using Tapatalk
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Spring relaxing in the apps bracket.
Quote:
Originally Posted by RonA
Just curious. After FASS number 3 quit on me I switched to a PDR cam with a lift pump lobe . The p-pumped 24 is a bit different, but I always felt it ran cleaner than a 12V at the same power level, and more reliable than the vp.
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I agree. Low lift flow is so much better. Definitely helps with response and less smoke.
__________________
Jacob, 97 rclb
Last edited by jlbayes; 05-26-2017 at 08:09 AM.
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05-26-2017, 08:14 AM
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#14
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Name: Financial Mistake
Title: Too Much Time
Status: Not Here
Join Date: Apr 2017
Member`s Gallery
Posts: 278
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Quote:
Originally Posted by RonA
Just curious. After FASS number 3 quit on me I switched to a PDR cam with a lift pump lobe . The p-pumped 24 is a bit different, but I always felt it ran cleaner than a 12V at the same power level, and more reliable than the vp.
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I've had pretty good luck with them, but I'm not against a nice gear driven waterman if I ever win the lottery.
And they are a different animal for sure.
Sent from my iPhone using Tapatalk
__________________
P24V, Billet 62/68/14, Billet 475/96/1.32, 27°, Seth's Stg 3 @ 450cc, dual feed, DFI 7x12, Fass240, 110#, 425, p&p/3 angle/oring, ED freeze plugs, BD IC, VP MAX boots, stainless mani, Snow w/m, coolant bypass, CTS2, EAS, POS NV4500, valair quiet dual ceramic
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