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Fuel Rail Pressure Sensor

Rcasarez2

New Member
Aug 7, 2023
14
0
Truck Year
2015
Any tips on replacing my fuel rail pressure sensor ? Going to do it myself this week
 

Jpop0077

New Member
Mar 13, 2023
25
10
Truck Year
2015
Yes, It is located on the left side fuel rail (passenger side of truck) all the way in the back up against the fire walk. You will need to cut an opened end wrench in half to be able to get it on and off.
The fuel pressure releases automatically when the truck is turned off, disconnect the negative battery terminal. The wire harness plug is a pain to get off, you have to pull the locking tab out with a pick, then press the release and pull it off. You have zero room back there which is why it’s such a pain! I broke mine trouble shooting an issue so I was forced to replace the sensor. I can’t exactly remember what size the wrench is, I think it’s 1” 1/16 but I can check when I get home if you need me to
 

Rcasarez2

New Member
Aug 7, 2023
14
0
Truck Year
2015
Yes, It is located on the left side fuel rail (passenger side of truck) all the way in the back up against the fire walk. You will need to cut an opened end wrench in half to be able to get it on and off.
The fuel pressure releases automatically when the truck is turned off, disconnect the negative battery terminal. The wire harness plug is a pain to get off, you have to pull the locking tab out with a pick, then press the release and pull it off. You have zero room back there which is why it’s such a pain! I broke mine trouble shooting an issue so I was forced to replace the sensor. I can’t exactly remember what size the wrench is, I think it’s 1” 1/16 but I can check when I get home if you need me to
Thank you I removed the sensor and replaced it with new one but my truck wasn’t wanting to start after. I bled the lines out and everything but when I put my old one back in it started up but still nit running good like before
 

TC Diesel

Well-Known Member
Jul 14, 2016
2,469
700
Truck Year
2015
Beside being Dangerous, (HPCR ) Systems ( downstream OF hp PUMP ) DO NOT REQUIRE being bled, some require priming. HPCR sensors rarely fail...and when they do it generally triggers a specific code. why did you replace it ?
 

Rcasarez2

New Member
Aug 7, 2023
14
0
Truck Year
2015
Beside being Dangerous, (HPCR ) Systems ( downstream OF hp PUMP ) DO NOT REQUIRE being bled, some require priming. HPCR sensors rarely fail...and when they do it generally triggers a specific code. why did you replace it ?
I replaced it because im having trouble starting truck,losing power when driving, truck hesitates when it taking off, wasting a lot of fuel. When I took it to mechanic he said “fuel pressure regulator was only code. I replaced it and it ran even worse so I put old one back on. We put computer on truck and it showed “fuel pressure sensor” so I replaced it and still having trouble.
 
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