Vmcrdrod wrote:
Hi I'm a new member. Have had a Liberty
CRD for a year now. 150k miles I need to do some preventative maintenance fuel filter T-stat water, pump timeing belt. Still don't know if there is a stock lift pump upstream of the Cp3.
My question is my engine will bog at limes shake and loose power for a split second it sounds like it is coming from the passenger side. With all of the fuel path and valves associated to hp pump fuel metering etc. where do I start trouble shooting . I was thinking gauges and running a scan but I want to be proactive. I love this little power plant and I want to keep it running forever
Thanks for any help
Rob
Welcome to the forum! Lots of very helpful and knowledgeable people on here more than willing to help answer any questions you might have, just ask!
I would strongly recommend installing an in-tank fuel pump!!! A majority of owners have installed a lift pump or in-tank lift pump to cure any air in fuel problems!
The absolute best way to ensure you
never have air infusion in the fuel system ever again is to install an in-tank fuel pump like the Carter P76148M in-tank fuel pump or an equivalent!
Your Jeep is already factory wired to a connector under the back seat on the drivers side for the in-tank pump including a fuel pump relay in the Power Distribution Center and the ECM already has the logic loaded for operation of the pump!
(The fuel pump relay runs the pump for ~15 seconds when you switch the key to the ON position and then runs the pump continuously when you start the engine)
It is a fuel pump for a diesel like the ones used in the Dodge Cummins Ram trucks.
You will be amazed at how much better the engine runs and performs with the addition of an in-tank fuel pump!!!
Additional in-tank fuel pump part numbers: AIRTEX-E7181M, DELPHI-FG1224, MOPAR-5143160AA
A properly installed in-tank lift pump will ensure absolutely NO air infusion into the fuel system period!
An in-tank lift pump puts the entire fuel system under a positive (+) pressure from where it first exits the fuel pump inside the fuel tank through all the fuel lines and fittings, through the fuel filter head, heater, and filter, all the way to the back of the CP3 injection pump.
ANY LEAK anywhere on the system will BE SELF EVIDENT and show up very quickly as fuel leaking out.
Air simply cannot get into the system while it is under 10-15 psig of pressure!!!
If you opt to do the wiring harness mod yourself, all you will have to add is two wires from under the rear seat to the top of the fuel tank. The OEM fuel line fittings are designed for positive pressure, not vacuum, and will work just fine with the in-tank pump install and will not require any changes...
These two links below will answer any questions concerning installing an in-tank lift pump and / or wiring it up properly.
http://www.auerbach.ca/kj/lift_pump/ viewtopic.php?t=26385&highlight=Seth at Sasquatch Parts has both the fuel pumps and correct wiring harness listed on his web site, Link: >
https://shop.sasquatchparts.com/Link:>
https://shop.sasquatchparts.com/product ... 5143160AA/
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount98 Dodge Cummins 24 Valve