Question about 2004 Chevrolet Silverado 2500HD

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Low fuel rail pressure on 03 duramax - 2004 Chevrolet Silverado 2500HD

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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280zlvr
  • 126 Answers

SOURCE: 2004 lly duramax

try hooking up a fuel pressure test gauge to fuel rail pre filter and post filter and rev truck to 2500 rpm what is fuel pressure ?
next using a vacume pump attach to fuel pressure regulator pump up while engine is running only pump up to 8 psi to see if pressure changes if not replace pressure regulator .
it could also be ur speed sensor switch on overdrive transmission
good luck with it

Posted on Jun 30, 2008

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cadman000
  • 607 Answers

SOURCE: low fuel rail pressure

Check your " FUEL FILTER " for clogging. Work backwards toward the fuel supply tank, Hope this helps.

Posted on Apr 27, 2009

  • 245 Answers

SOURCE: low fuel rail pressure

who did a conversion on this truck???? the duramax is a common rail engine and can not handle wvo or sve. it will destroy your entire fuel system in no time on this truck. if you want to do a vo conversion you need to get a diesel with an inline injection pump or one of the older powerstrokes. i would suggest you quit trying to run wvo through this truck if you do not want to do a lot of very expensive damage

Posted on Apr 29, 2009

  • 691 Answers

SOURCE: Low pressure at the fule rail, changed out the

if you getting low fuel pressure after changing out the fuel filter and the pressure regulator, than the fuel pump may not pump correct amount of pressure. being 1993, the pump has age along and have run many miles, may have gotten weak and not pumping correct mount of psi.

Posted on Oct 04, 2009

Sandpiper99
  • 71 Answers

SOURCE: 2005 Lincoln Town Car suffering from low fuel

The ford spec listed in the ford engine control manual is:

General Specifications Item Specification Fuel tank capacity 71.9L (19 gal) Fuel Pressure Hot restart 448-482 kPa (65-70 psi) Key ON Engine OFF (KOEO) 140-415 kPa (20-60 psi) Key ON Engine Running (KOER) 170-280 kPa (25-40 psi)

Are you measuring the fuel pressure with a mechanical gauge or are you using a scan tool . If with a mechanical gauge, does the gauge have an air purge? What symptoms does the vehicle present. If running rough you could have a fuel injector leaking. Are you measuring the fuel pressure with the key on engine off? If so, did you cycle the key a few times? Good luck

Posted on Apr 05, 2011

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1 Answer

I have a 2007 c7500 with a 7.8 duramax and I m getting a p2923 fuel rail press.low,are there any common problems,thanks


Could be one or more of the following.

1. Bad fuel pump
2. Rust/clogged fuel line or tank
3. Failing fuel pump
4. Bad injectors
5. Clogged injectors
6. clogged fuel rail

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Chevy duramax code p0087


P0087 GMC - Fuel Rail Pressure Malfunction Pressure Too Low

Possible causes - Faulty fuel pump
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- Fuel pressure sensor harness is open or shorted
- Fuel pressure sensor electrical circuit poor connection
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I'm getting a code for low fuel rail pressure


you can try to erase the fault code with your obd2 scanner, after a period of time, check it, if you get the code again, you must take it to repair.

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Gmc w4500 with 5.2 L after driving loses throttle response and kicks code p1094 fuel rail pressure low at idle or deceleration


Follow this link. Hope it helps. Good Luck.
http://www.duramaxforum.com/forum/04-5-05-lly-duramax-powertrain/106-trouble-codes.html

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2007 Silverado, 6.6 Duramax w/Allison Transmission. Computer says "Low Rail Pressure". The truck seems to have no power in "Tow" mode. If I shut the truck off for about 45 minutes and restart it's OK for...


There is a service bulletin for this condition.It has to do with a ceramic high pressure valve ball fracture inside the fuel injection pump,which may lead to internal pump damage resulting in low fuel rail pressure.This could contaminate the fuel rails and injectors with debris.The fuel pump will operate but with reduced output flow.The fuel injection pump will have to be replaced or repaired.Look and see if there are any repair shops that specialize in injection pumps.Hope this helps.Good luck.

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2 Answers

2001 Duramax 6.6 Turbo wont start


does the starer click when u turn the key,u could have a bad ground from the batt to the body

Jul 03, 2009 | 2001 Chevrolet Silverado 2500HD

1 Answer

Low fuel rail pressure


who did a conversion on this truck???? the duramax is a common rail engine and can not handle wvo or sve. it will destroy your entire fuel system in no time on this truck. if you want to do a vo conversion you need to get a diesel with an inline injection pump or one of the older powerstrokes. i would suggest you quit trying to run wvo through this truck if you do not want to do a lot of very expensive damage

Apr 27, 2009 | 2003 Chevrolet Silverado 2500HD

1 Answer

Low fuel rail pressure


Check your " FUEL FILTER " for clogging. Work backwards toward the fuel supply tank, Hope this helps.

Apr 27, 2009 | 2001 Jeep Grand Cherokee

1 Answer

2004 lly duramax


try hooking up a fuel pressure test gauge to fuel rail pre filter and post filter and rev truck to 2500 rpm what is fuel pressure ?
next using a vacume pump attach to fuel pressure regulator pump up while engine is running only pump up to 8 psi to see if pressure changes if not replace pressure regulator .
it could also be ur speed sensor switch on overdrive transmission
good luck with it

Jun 29, 2008 | Chevrolet Silverado 3500HD Cars & Trucks

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