 |
|
13-05-2023
|
 |
MonsterMoose
|
|
Join Date: Apr 2005
Location: QLD
Age: 70
Posts: 8,968 What Jeep do I drive?: WK2
Likes: 4,474
Liked 3,976 Times in 2,347 Posts
|
|
Not great news at all, frustration must be huge.............
Did anyone check the HP mesh screen to see if crap in it or do a fuel pressure reading at cranking ?? Though was my belief if the HPFP fails it does so without warning so you may be lucky in that respect...
Wish you luck in getting it solved.
__________________
2015 WK2 CRD Laredo( ZG, WG 2.7 )
Your Never Too Old To Learn Something Stupid.
|
13-05-2023
|
 |
Full Flexer
|
|
Join Date: Dec 2011
Location: Brisbane, QLD
Posts: 845
Likes: 264
Liked 691 Times in 386 Posts
|
|
Could be misguided, but my understanding of the issue was that the mesh screen itself disintegrates and, when it lets go, causes the issues. If that's the case, I can't see how it would be a slow build-up of debris behind the mesh that limits flow.
Happy to be corrected
__________________
2015 GC Limited Diesel w/ QL and ORA pack
Chief recovery points, 22" Stedi lightbar, Catch Can
|
13-05-2023
|
|
MonsterMoose
|
|
Join Date: Apr 2005
Location: QLD
Age: 70
Posts: 8,968 What Jeep do I drive?: WK2
Likes: 4,474
Liked 3,976 Times in 2,347 Posts
|
|
Quote:
Originally Posted by LeCheese
Could be misguided, but my understanding of the issue was that the mesh screen itself disintegrates and, when it lets go, causes the issues. If that's the case, I can't see how it would be a slow build-up of debris behind the mesh that limits flow.
Happy to be corrected
|
This write up gives a pretty good description of the how and the why I think...
https://www.dieselhub.com/tech/bosch...p-failure.html
__________________
2015 WK2 CRD Laredo( ZG, WG 2.7 )
Your Never Too Old To Learn Something Stupid.
|
13-05-2023
|
|
Full Flexer
|
|
Join Date: Dec 2011
Location: Brisbane, QLD
Posts: 845
Likes: 264
Liked 691 Times in 386 Posts
|
|
Quote:
Originally Posted by drover
|
Beauty, thanks mate - super helpful.
Definitely sounds like it's a 'once it's dead, it's dead for good' type problem, not an intermittent one.
__________________
2015 GC Limited Diesel w/ QL and ORA pack
Chief recovery points, 22" Stedi lightbar, Catch Can
|
14-05-2023
|
 |
Full Flexer
|
|
Join Date: Apr 2020
Location: Somewhere in Lake Macquarie
Posts: 848 What Jeep do I drive?: WK2
Likes: 829
Liked 775 Times in 403 Posts
|
|
[QUOTE=drover,
Did anyone check the HP mesh screen to see if crap in it .[/QUOTE]
Where is the mesh screen located at, have you got a detailed picture of its location and is it able to be removed and cleaned, cheers Olmate
__________________
MY16 GC WK2
|
14-05-2023
|
|
MonsterMoose
|
|
Join Date: Apr 2005
Location: QLD
Age: 70
Posts: 8,968 What Jeep do I drive?: WK2
Likes: 4,474
Liked 3,976 Times in 2,347 Posts
|
|
|
Quote:
Originally Posted by OLMATE
Where is the mesh screen located at, have you got a detailed picture of its location and is it able to be removed and cleaned, cheers Olmate
|
Ive been trying to find the bookmark but it has vanished but pretty sure it is the metering valve, the bit on top with an electrical connection I think its called the fuel quality solenoid in the WSM other names for elsewhere. it has an 80micron screen in it if I recall correctly, again the problem seem to be prominent in units with the CP4 that doesn't have a LP lift pump or where the LP pump drops pressure, runs out of fuel and then creates air bubbles which combined with the low lubrication of US diesel the pump valve chews itself and eventually blocks the screen and metal goes right thru the injectors and return lines ........ sounds feasable to me, our LP tank pump is supposed to push fuel at 58-65 psi with the HP Pump thumping it to around the 28K psi......
Have a look at this pdf link it shows that VW went thru a similar if not same scenario many years ago with the CP4; https://www.google.com/url?sa=i&url=...AAAAAdAAAAABAD
The metering valve removed showing screen............while its from a Duramax I doubt ours would be different.
__________________
2015 WK2 CRD Laredo( ZG, WG 2.7 )
Your Never Too Old To Learn Something Stupid.
Last edited by drover; 14-05-2023 at 10:58 AM.
|
14-05-2023
|
|
Full Flexer
|
|
Join Date: Dec 2011
Location: Brisbane, QLD
Posts: 845
Likes: 264
Liked 691 Times in 386 Posts
|
|
Quote:
Originally Posted by drover
our LP tank pump is supposed to push fuel at 58-65 psi with the HP Pump thumping it to around the 28K psi......
|
28,000 PSI!??!?!?!? Holy hell
__________________
2015 GC Limited Diesel w/ QL and ORA pack
Chief recovery points, 22" Stedi lightbar, Catch Can
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
|
All times are GMT +10. The time now is 07:57 PM.
|
|
|
|
Advertisements
|
|
|
