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 Post subject: Fuel Rail Pressure Sensor Question
PostPosted: Tue Apr 17, 2018 8:58 pm 
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2005 Jeep Liberty CRD with EGR delete. Shortly after I installed the EGR delete kit my engine developed a small fuel leak. I narrowed it down to the fuel rail pressure sensor. Removed the sensor and noticed that there was no rubber o-ring on the base of the sensor. Is there supposed to be? I went to the local parts store and found an o-ring that was a close fit. Re-installed and I still have a slow leak but now the Jeep dies under acceleration as if it doesn't have any fuel. When this happens it will restart without any issue. No CEL. Any pointers would be helpful. Thanks!


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 Post subject: Re: Fuel Rail Pressure Sensor Question
PostPosted: Tue Apr 17, 2018 11:44 pm 
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Location: Oregon Coast Dairy Country. Land of stumps, dumps, and "Liquid Pumps"
no rubber o ring exists that would hold 29k psi.
no rubber o ring is present there.
If you look at the business end of the pressure sensor, you will see a raised ring along the outside. This raised ring, with the pressure of being torqued, makes a very high pressure contact against the machined boss of the fuel rail. The fuel pressure solenoid at the back of the rail seals the same way.

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 Post subject: Re: Fuel Rail Pressure Sensor Question
PostPosted: Wed Apr 18, 2018 12:23 am 
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I assumed that was the case, which is why I asked. Thank you for confirming. Do you happen to know what the torque specs on the sensor are?


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 Post subject: Re: Fuel Rail Pressure Sensor Question
PostPosted: Wed Apr 18, 2018 1:49 pm 
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Location: Oregon Coast Dairy Country. Land of stumps, dumps, and "Liquid Pumps"
1. Install fuel pressure sensor in fuel rail. Tighten sensor to 35 N·m (26 ft. lbs.)..

_________________
'06 Lbrty Sprt CRD 148Kmi

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770


Top
 Profile  
 
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