Low fuel pressure warning, broken truck! - Page 2 - Nissan Titan XD Forum
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post #11 of 33 Old 11-08-2018, 11:13 PM
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If the local shop did not follow procedure and changed both and then primed they could have damaged the lift pump. Some folks have had that happen. SOP is change one at tank prime run then change front prime run.
Take it back to them and ask questions.
That's completely wrong and not accurate. Follow the instructions that FleetGaurd so diligently wrote and that comes with the filters.
You DO NOT have to change one filter at a time and prime each time.
In fact, you are making the pump do two the times the work it should have to.
Actually the process Nissan spells out in the manual is what he stated, a member had warranty denied for doing it your way when the pump burned up.

Last I checked Nissan is the one deciding on warranty not fleet guard. I’d follow the manual.
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post #12 of 33 Old 11-08-2018, 11:24 PM
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Originally Posted by tdhanses View Post
Quote:
Originally Posted by Arice View Post
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Originally Posted by Cowboystarr View Post
If the local shop did not follow procedure and changed both and then primed they could have damaged the lift pump. Some folks have had that happen. SOP is change one at tank prime run then change front prime run.
Take it back to them and ask questions.
That's completely wrong and not accurate. Follow the instructions that FleetGaurd so diligently wrote and that comes with the filters.
You DO NOT have to change one filter at a time and prime each time.
In fact, you are making the pump do two the times the work it should have to.
Actually the process Nissan spells out in the manual is what he stated, a member had warranty denied for doing it your way when the pump burned up.

Last I checked Nissan is the one deciding on warranty not fleet guard. I’d follow the manual.
I've not seen that written in the manual and would like to see the verbiage.
If as stated, then that means that'
1. You disconnect the batteries before the servicing the primary filter.
2. You replace the primary filter.
3. You then reconnect the batteries and prime the system.
4. You start all over again for the secondary filter.
I know we all think OEMs are dumb but that service procudure of doing one at a time, if as stated, is moronic.....and not one FleetGaurd (which is Cummins) would agree with.
Anybody have a copy of the exact written service procudure from Nissan?
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post #13 of 33 Old 11-08-2018, 11:28 PM
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Originally Posted by Arice View Post
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Originally Posted by tdhanses View Post
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Originally Posted by Arice View Post
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Originally Posted by Cowboystarr View Post
If the local shop did not follow procedure and changed both and then primed they could have damaged the lift pump. Some folks have had that happen. SOP is change one at tank prime run then change front prime run.
Take it back to them and ask questions.
That's completely wrong and not accurate. Follow the instructions that FleetGaurd so diligently wrote and that comes with the filters.
You DO NOT have to change one filter at a time and prime each time.
In fact, you are making the pump do two the times the work it should have to.
Actually the process Nissan spells out in the manual is what he stated, a member had warranty denied for doing it your way when the pump burned up.

Last I checked Nissan is the one deciding on warranty not fleet guard. I’d follow the manual.
I've not seen that written in the manual and would like to see the verbiage.
If as stated, then that means that'
1. You disconnect the batteries before the servicing the primary filter.
2. You replace the primary filter.
3. You then reconnect the batteries and prime the system.
4. You start all over again for the secondary filter.
I know we all think OEMs are dumb but that service procudure of doing one at a time, if as stated, is moronic.....and not one FleetGaurd (which is Cummins) would agree with.
Anybody have a copy of the exact written service procudure from Nissan?
Pm me your email and I’ll email the service manual for the Fuel System, it’s starts on page 39. Also I believe it’s in the diesel supplement that comes with the owners manual. For some reason I think even the fleet guard instructions say it as well but I haven’t read them in awhile.

Oh yeah in your steps #4 is check for leaks 🙂 in the process.

Last edited by tdhanses; 11-08-2018 at 11:30 PM.
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post #14 of 33 Old 11-08-2018, 11:32 PM
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FUEL FILTER (STAGE 1)
< REMOVAL AND INSTALLATION >
FUEL FILTER (STAGE 1) Removal and Installation
[CUMMINS 5.0L ]
A
C D
WARNING: E Battery acid and battery acid fumes are extremely dangerous and can cause severe burns and explo- sion. To help reduce the risk of personal injury:
• Wear appropriate goggles and protective clothing.
• Always properly ventilate the area where service is being performed.
• Never allow battery fluid to come into contact with skin, eyes, fabrics or painted surfaces.
• To avoid arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable
last. G • If acid contacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical
attention.
WARNING: H When using compressed air for cleaning, to avoid the risk of personal injury from flying debris and dirt:
• Do not exceed 30 psi (207 kPa).
• Wear appropriate eye protection and protective clothing including gloves.
WARNING:
GENERAL INFORMATION
It is possible that fault codes may become active after fuel filter replacement due to air introduced into the
system. Be sure to operate the engine until air is purged and clear the fault code(s) before releasing the vehi- cle.
REMOVAL
WARNING:
Diesel fuel and diesel fuel vapor is flammable. To avoid risk of fire or burns, never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
I
J
The fuel system (fuel pump, high pressure fuel lines, fuel rail, injectors) contains very high pressure K
fuel. To avoid the risk of personal injury or fire:
• Do not loosen any fittings while the engine is running.
• Wait at least 10 minutes after shutting down the engine before loosening any fittings in the high-
pressure fuel system to allow pressure to decrease to a lower level.
• Wear appropriate eye protection and protective equipment as high-pressure fuel spray can penetrate
skin.
• Never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equip-
ment) in the work area.
• Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
CAUTION:
• Clean all around the filter area before disassembly. Dirt or contaminants can damage the fuel sys-
tem.
• The fuel filter housing can be damaged by rocking the filter back and forth.
• Place an approved container under the fuel filter housing (Stage 1) to ensure fuel dripping from
housing during service is captured.
1. Disconnect the battery or batteries. Refer to PG-174, "Battery Disconnect".
2. Clean the area around the fuel filter.
3. Drain the fuel filter housing (Stage 1). Refer to FL-31, "Drain".
4. Close the water-in-fuel drain.
When using high-pressure water or steam cleaning equipment, to avoid the risk of personal injury from flying debris and hot steam:
• Wear appropriate eye protection and protective clothing including gloves.
WARNING:
INFOID:0000000013174411
F
L
M N O P
5. Disconnect the harness connector from the water-in-fuel sensor. Refer to FL-43, "Removal and Installa- tion".
6. Remove fuel filter housing (Stage 1) protector.
Revision: March 2016 FL-39 2016 Titan NAM
FL
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post #15 of 33 Old 11-08-2018, 11:33 PM
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FUEL FILTER (STAGE 1)
< REMOVAL AND INSTALLATION >
7. Remove the fuel filter housing [Stage 1 (3)] from the module (1).
Refer to FL-43, "Removal and Installation".
8. Remove the fuel filter element (4) by lifting the element straight
out of the fuel filter housing (Stage 1).
NOTE:
• It may be necessary to use a suitable tool in the slots provided to remove the fuel filter from the housing.
• If fuel filter element does not release with housing remove the ele- ment by twisting and pulling directly away from module simulta- neously.
9. Remove and discard the O-ring (2) on the fuel filter housing (Stage 1).
CAUTION:
Do not reuse O-ring.
NOTE:
[CUMMINS 5.0L ]
ALBIA2677ZZ
Leaving the fuel filter housing (Stage 1) un-installed from the module for extended periods of time (overnight) could cause the fuel tank to drain through the Stage 1 fuel filter module.
INSPECTION AFGTER REMOVAL
1. Inspect the fuel filter housing (Stage 1) and module for cracks or passage blockages. Replace if damage
is found. Refer to FL-43, "Removal and Installation". INSTALLATION
WARNING:
Battery acid and battery acid fumes are extremely dangerous and can cause severe burns and explo- sion. To help reduce the risk of personal injury:
• Wear appropriate goggles and protective clothing.
• Always properly ventilate the area where service is being performed.
• Never allow battery fluid to come into contact with skin, eyes, fabrics or painted surfaces.
• To avoid arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable
last.
• If acid contacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical
attention.
CAUTION:
Do not pre-fill the Stage 1 fuel filter with fuel. Pre-filling the Stage 1 fuel filter can result in debris enter- ing the fuel system and damaging fuel system components.
1. Lubricate the inner seal with petroleum jelly or white lithium grease.
2. Install new O-ring on fuel filter housing (Stage 1). Lubricate with petroleum jelly or white lithium grease.
NOTE:
If you are using a new housing that has not had fuel in it, lubricate the lip seal at the bottom of the element with petroleum jelly or white lithium grease before placing it into the housing.
3. Install the fuel filter element into the fuel filter housing (Stage 1) and make sure the four tabs are properly seated into the four slots.
4. Install the fuel filter housing (Stage 1) on the module.
5. Connect the harness connector to the water-in-fuel sensor. Refer to FL-43, "Removal and Installation".
6. Connect the battery or batteries. Refer to PG-174, "Battery Disconnect".
7. Prime the fuel system. Refer to EM-211, "Priming".
8. Operate the engine and check for leaks.
Revision: March 2016 FL-40 2016 Titan NAM
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post #16 of 33 Old 11-08-2018, 11:34 PM
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FUEL FILTER (STAGE 2)
< REMOVAL AND INSTALLATION >
FUEL FILTER (STAGE 2) Removal and Installation
[CUMMINS 5.0L ]
A
C
D
E
F
When using compressed air for cleaning, to avoid the risk of personal injury from flying debris and G dirt:
• Do not exceed 30 psi (207 kPa).
• Wear appropriate eye protection and protective clothing including gloves.
WARNING:
INFOID:0000000013174414
GENERAL INFORMATION
It is possible that fault codes may become active after fuel filter replacement due to air introduced into the
system. Be sure to operate the engine until air is purged and clear the fault code(s) before releasing the vehi- cle.
REMOVAL
WARNING:
Battery acid and battery acid fumes are extremely dangerous and can cause severe burns and explo- sion. To help reduce the risk of personal injury:
• Wear appropriate goggles and protective clothing.
• Always properly ventilate the area where service is being performed.
• Never allow battery fluid to come into contact with skin, eyes, fabrics or painted surfaces.
• To avoid arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable
last.
• If acid contacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical
attention.
WARNING:
When using high-pressure water or steam cleaning equipment, to avoid the risk of personal injury from flying debris and hot steam:
• Wear appropriate eye protection and protective clothing including gloves.
WARNING:
H
I
J
K
L M N O P
Diesel fuel and diesel fuel vapor are flammable. To avoid risk of fire or burns, never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
CAUTION:
Clean all around the filter area before disassembly. Dirt or contaminants can damage the fuel system.
CAUTION:
Wait for 10 minutes after engine shutdown to allow the fuel pressure to decay to minimize fuel spillage when the cover is removed.
NOTE:
For best results, the fuel filter (Stage 1) should be changed prior to changing the fuel filter (Stage 2).
1. Disconnect the battery or batteries. Refer to PG-174, "Battery Disconnect".
2. Remove the air cleaner lid and air inlet connection air ducts.
3. Remove the lid (1) from the fuel filter housing [Stage 2 (2)].
NOTE:
Remove the lidslowly to avoid fuel spillage.
4. Remove the fuel filter [Stage 2 (3)] from the lid by hand.
5. Remove and discard the sealing O-ring (4) from the fuel filter (Stage 2) lid (1).
CAUTION:
Do not reuse O-ring.
ALBIA2681ZZ
INSPECTION AFTER REMOVAL
1. Inspect the fuel filter housing and cover for cracks, passage blockages, and other damage. Replace if
damage is found. Refer to FL-46, "Removal and Installation". INSTALLATION
Revision: March 2016 FL-41 2016 Titan NAM
FL
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post #17 of 33 Old 11-08-2018, 11:35 PM
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FUEL FILTER (STAGE 2)
< REMOVAL AND INSTALLATION >
WARNING:
Diesel fuel and diesel fuel vapor are flammable. To avoid risk of fire or burns, never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
CAUTION:
Do not pre-fill the fuel filter with fuel. Pre-filling the filter can result in debris entering the fuel system and damaging fuel system components.
1. Install a new O-ring on the fuel filter (Stage 2) lid. Lubricate the O-ring with petroleum jelly or white lithium grease.
2. Lubricate the inner seal on the fuel filter (Stage 2) with petroleum jelly or white lithium grease.
3. Install the fuel filter (Stage 2) onto the standpipe in the fuel filter housing (Stage 2).
NOTE:
Be sure the fuel filter element is seated in the housing by pushing downward on the top of the element. If the fuel filter (Stage 2) is not fully seated in the housing after installation, the engine can fail to start.
4. Install and tighten the fuel filter (Stage 2) lid.
Torque Value : 25 Nm (2.6 kg-m, 18 ft-lb)
NOTE:
If the fuel filter (Stage 2) is not fully seated in the fuel filter housing (Stage 2), the engine can fail to start after servicing the fuel filter (Stage 2).
5. Connect the battery or batteries. Refer to PG-174, "Battery Disconnect".
6. Prime the fuel system. Refer to EM-211, "Priming".
7. Operate the engine and check for leaks.
[CUMMINS 5.0L ]
Revision: March 2016 FL-42 2016 Titan NAM
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post #18 of 33 Old 11-08-2018, 11:58 PM
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Quote:
Originally Posted by tdhanses View Post
FUEL FILTER (STAGE 1)
< REMOVAL AND INSTALLATION >
FUEL FILTER (STAGE 1) Removal and Installation
[CUMMINS 5.0L ]
A
C D
WARNING: E Battery acid and battery acid fumes are extremely dangerous and can cause severe burns and explo- sion. To help reduce the risk of personal injury:
• Wear appropriate goggles and protective clothing.
• Always properly ventilate the area where service is being performed.
• Never allow battery fluid to come into contact with skin, eyes, fabrics or painted surfaces.
• To avoid arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable
last. G • If acid contacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical
attention.
WARNING: H When using compressed air for cleaning, to avoid the risk of personal injury from flying debris and dirt:
• Do not exceed 30 psi (207 kPa).
• Wear appropriate eye protection and protective clothing including gloves.
WARNING:
GENERAL INFORMATION
It is possible that fault codes may become active after fuel filter replacement due to air introduced into the
system. Be sure to operate the engine until air is purged and clear the fault code(s) before releasing the vehi- cle.
REMOVAL
WARNING:
Diesel fuel and diesel fuel vapor is flammable. To avoid risk of fire or burns, never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equipment) in the work area. Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
I
J
The fuel system (fuel pump, high pressure fuel lines, fuel rail, injectors) contains very high pressure K
fuel. To avoid the risk of personal injury or fire:
• Do not loosen any fittings while the engine is running.
• Wait at least 10 minutes after shutting down the engine before loosening any fittings in the high-
pressure fuel system to allow pressure to decrease to a lower level.
• Wear appropriate eye protection and protective equipment as high-pressure fuel spray can penetrate
skin.
• Never smoke or allow sparks or flames (such as pilot lights, electrical switches, or welding equip-
ment) in the work area.
• Never allow diesel fuel to spill onto a hot exhaust manifold which can cause a fire.
CAUTION:
• Clean all around the filter area before disassembly. Dirt or contaminants can damage the fuel sys-
tem.
• The fuel filter housing can be damaged by rocking the filter back and forth.
• Place an approved container under the fuel filter housing (Stage 1) to ensure fuel dripping from
housing during service is captured.
1. Disconnect the battery or batteries. Refer to PG-174, "Battery Disconnect".
2. Clean the area around the fuel filter.
3. Drain the fuel filter housing (Stage 1). Refer to FL-31, "Drain".
4. Close the water-in-fuel drain.
When using high-pressure water or steam cleaning equipment, to avoid the risk of personal injury from flying debris and hot steam:
• Wear appropriate eye protection and protective clothing including gloves.
WARNING:
INFOID:0000000013174411
F
L
M N O P
5. Disconnect the harness connector from the water-in-fuel sensor. Refer to FL-43, "Removal and Installa- tion".
6. Remove fuel filter housing (Stage 1) protector.
Revision: March 2016 FL-39 2016 Titan NAM
FL
Good copy. Per your earlier comments and the pasted all three match. They do give the procedure for changing the individual filter as prescribed and the Diesel Engine Supement matches the FleetGaurd instructions by the way.
However, those are instructions for changing the filter individually and are generic. There also is no "WARNING" in any of the three documents that you can't change both at one time. If there was a mass issue there would be a warning.
Our filters fit a plethora of other vehicle applications and are not proprietary to Nissan and can result in issues that require a single filter replacement vice both. Hence the individual instructions.
I gaurantee you the Nissan techs do not dicinnect the batteries two times and prime two times...
I can also pretty much guarantee that the person denied warranty you mentioned for pump failure was an idiot and watched a YouTube video on how to change filters (which are all wrong) on the XD.
You see, the dealership can tell how many times you tried to prime the vehicle when plugged in doing diagnostics and see the "events" surronding the failure.
Pretty sure the owner who was denied warranty installed the filters incorrectly because he was smarter than the instructions and continued to try and prime until he burnt up his pump, then wanted warranty......the dealership saw this when plugged in.
Also, this fuel filtration system is very, very similar to that of other unnamed OEMs and engines (6.0 for example).....I saw more than 200 idiots who thought they knew how to service the 6.0 fuel filters and caused so many problems that "kits" had to be built and sold for the high pressure filtration housing cap.
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post #19 of 33 Old 11-09-2018, 12:17 AM
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Actually if you look at the change interval to me it’s assumed you’ll change at the same time and it does recommend you change stage 1 before stage 2 and at the same time. Maybe it’s just how I read it with all information given that both are done at the same time.

Truthfully for the price I would always just change both.

NOTE: For best results, the fuel filter (Stage 1) should be changed prior to changing the fuel filter (Stage 2).

So you are correct on no warning, I’m not sure how many times the guy that burned his up primed it. There was another that had a pump burn up when the dealer changed them, again I don’t know details. The original pump in 2016’s and early 2017’s was discontinued and replaced.

Last edited by tdhanses; 11-09-2018 at 12:27 AM.
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post #20 of 33 Old 11-09-2018, 08:41 AM
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I drain water on stage one filter, then change filter.
Prime then start engine.
Shut off engine, change stage 2 filter, Prime and then start engine again.
No Issues here.
PS. I don't disconnect battery.
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