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06-03-2019, 10:51 AM
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#15
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Senior Member
Join Date: Feb 2017
Posts: 162
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Peterbilt was very friendly and did take appointments but had two complete engine overhauls this week.
DW called around and found a Kenworth dealer that doesn't show up in a google search. They say they have time and we are taking the coach there in half an hour.
I did get the energy to take the braces off the bed so I could fold the board up against the wall and remove both steel covers. I still can't pick out the HEUI pump or the IAP sensor so having the Kenworth dealer is my best bet.
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06-03-2019, 11:37 AM
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#16
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Senior Member
Monaco Owners Club
Join Date: Aug 2017
Location: Orlando, Florida
Posts: 5,819
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While your waiting for your appointment - take a look at this video:
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06-03-2019, 12:25 PM
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#17
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Senior Member
Join Date: Jan 2005
Posts: 1,447
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Quote:
Originally Posted by dickb46
Peterbilt was very friendly and did take appointments but had two complete engine overhauls this week.
DW called around and found a Kenworth dealer that doesn't show up in a google search. They say they have time and we are taking the coach there in half an hour.
I did get the energy to take the braces off the bed so I could fold the board up against the wall and remove both steel covers. I still can't pick out the HEUI pump or the IAP sensor so having the Kenworth dealer is my best bet.
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Good luck-- hopefully it will be the IAP sensor.
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06-03-2019, 03:40 PM
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#18
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Senior Member
Join Date: Feb 2017
Posts: 162
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After 60 minutes of exhaustive troubleshooting the tech and the parts dept agreed that it is indeed the IAP sensor. The only code was 15 and I asked them to start my hard starting engine with the sensor disconnected, they did and it started instantly and purred so I'm on board with them. Not being a Cat dealer they had to order it and will install it tomorrow afternoon. Keeping my fingers crossed!! Thanks for the video.
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06-03-2019, 06:02 PM
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#19
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Senior Member
Join Date: Feb 2016
Posts: 309
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Quote:
Originally Posted by dickb46
After 60 minutes of exhaustive troubleshooting the tech and the parts dept agreed that it is indeed the IAP sensor. The only code was 15 and I asked them to start my hard starting engine with the sensor disconnected, they did and it started instantly and purred so I'm on board with them. Not being a Cat dealer they had to order it and will install it tomorrow afternoon. Keeping my fingers crossed!! Thanks for the video.
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Glad to hear Dick. I've experienced the IAP several times. That little bugger will cause the symptoms your are experiencing.
Keep us posted! 
__________________
George and Diane, 2004 Discovery 39S pushed by our Keywest CC w/115 Johnson
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06-03-2019, 07:25 PM
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#20
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Senior Member
Fleetwood Owners Club Freightliner Owners Club
Join Date: Nov 2001
Location: East Texas
Posts: 2,269
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Quote:
Originally Posted by Cat
The pump when failing generates metal. That metal gets into the injector solenoids causing the solenoid to stick "open" this dumps the HEUI pressure in the rail....
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Just my two cents, this is exactly why I installed the IFS kit from George of Delam Solutions. It’s designed to trap the metal fragments from a failing HEUI pump, limiting the overall damage.
__________________
2005 Fleetwood Providence 39J CAT C7 350, MP-8 Power Module
My wife does all the driving - I just hold the wheel...
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06-04-2019, 11:05 AM
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#21
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Senior Member
Join Date: Aug 2010
Posts: 2,772
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Quote:
Originally Posted by Gadget Man
Just my two cents, this is exactly why I installed the IFS kit from George of Delam Solutions. It’s designed to trap the metal fragments from a failing HEUI pump, limiting the overall damage.
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Talked with Cat mechanic yesterday. Said that the new replacement HEUI pumps have a post filter built in! (?)
__________________
Terry & Alice
2006 Bounder 38L DP
2012 GMC Terrain
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06-04-2019, 02:52 PM
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#22
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Senior Member
Join Date: Feb 2017
Posts: 162
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We are FIXED! Runs like a top. I'm gonna miss the 10.6 mpg we were getting at 40 mph in limp mode (NOT!).
This was Rihm Kenworth in Winona MN and I highly recommend them.
$160.03 for the sensor
$215.05 for labor
Absolutely a wonderful experience.
dick
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06-04-2019, 04:06 PM
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#23
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Senior Member
Fleetwood Owners Club Freightliner Owners Club
Join Date: Nov 2001
Location: East Texas
Posts: 2,269
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HEUI pump intermittent operation
Quote:
Originally Posted by firedoc
Talked with Cat mechanic yesterday. Said that the new replacement HEUI pumps have a post filter built in! (?)
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He’s mistaken. Some new pumps come with a pre-filter. It will help protect the HEUI, but it does nothing to protect your fuel rail in the event of a HEUI failure. The IFS kit is the only post-filter system that I’m aware of.
__________________
2005 Fleetwood Providence 39J CAT C7 350, MP-8 Power Module
My wife does all the driving - I just hold the wheel...
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06-04-2019, 04:08 PM
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#24
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Senior Member
Fleetwood Owners Club Freightliner Owners Club
Join Date: Nov 2001
Location: East Texas
Posts: 2,269
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Quote:
Originally Posted by dickb46
We are FIXED! Runs like a top. I'm gonna miss the 10.6 mpg we were getting at 40 mph in limp mode (NOT!).
This was Rihm Kenworth in Winona MN and I highly recommend them.
$160.03 for the sensor
$215.05 for labor
Absolutely a wonderful experience.
dick
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Good for you, not a bad overall repair bill.
__________________
2005 Fleetwood Providence 39J CAT C7 350, MP-8 Power Module
My wife does all the driving - I just hold the wheel...
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06-04-2019, 05:38 PM
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#25
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Senior Member
Join Date: Feb 2016
Posts: 309
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Bingo! Good for you Dick. I actually carry a spare IAP after seeing so many that have failed. The simple unplug test takes the "guess" or "opinions" out of the picture and saves many other expensive components from being replaced.
Cheers
__________________
George and Diane, 2004 Discovery 39S pushed by our Keywest CC w/115 Johnson
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06-04-2019, 07:04 PM
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#26
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Senior Member
Join Date: Feb 2016
Posts: 309
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HEUI pump intermittent operation
Quote:
Originally Posted by Gadget Man
He’s mistaken. Some new pumps come with a pre-filter. It will help protect the HEUI, but it does nothing to protect your fuel rail in the event of a HEUI failure......
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Correct
__________________
George and Diane, 2004 Discovery 39S pushed by our Keywest CC w/115 Johnson
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