Nissan terrano 2.7tdi air in fuel

Daffyd1%er · 26-04-2020, 18:43

Hi I'm new to this looking for help I have a Nissan terrano 2.7tdi I have air in the fule system have changed half of the fuel line the rest looks ok but still have air any one have any suggestions on what to try next

macabethiel · 26-04-2020, 19:45

Quote:

Originally Posted by Daffyd1%er

Hi I'm new to this looking for help I have a Nissan terrano 2.7tdi I have air in the fule system have changed half of the fuel line the rest looks ok but still have air any one have any suggestions on what to try next

Has the fuel filter been changed recently - cheap replacements can be the culprit.

terranosaurusdoug · 26-04-2020, 21:53

Bypass your fuel filter and fit a small inline one temporarily, if that stops the air then the rubber membrane in the fuel primer has deteriorated.
Do not use an inline filter with paper filament, they are for petrol, use one with metal or plastic gauze

solarman216 · 26-04-2020, 22:10

First off how do you know you have air? if you have a bit of clear hose in the line and you see bubbles, where is it positioned, before or after the filter? Rick

D2206 · 26-04-2020, 22:11

Was the leak there before you replaced the fuel pipe or after? All you can do is check all the joints and see if there's any seepage from the joints. As Doug has already mentioned, its worth bypassing the filter to see if thats the cause. Failing that, you can always pressure test the feed line to the injector pump.

Banshee · 26-04-2020, 23:01

Welcome mate

Best thing you can do is run the truck from the IP out of a Jerry can bearing in mind anything used will bypass back into the main tank if not used, go and take it for a run and monitor performance.

First things to look for are fuel filter disintegration or blockage (check manual primer plunger on filter head is not perm sucked down when engine running

Then check the fuel lines all the way back from the IP down the chassis rail back to the tank.

I have also had issues this far back with my first Ford Maverick (same as Terrano) it appeared that conifer needles had been finding their way into the tank when i was filling up with veg oil on the drive, these had all become stuck in the swirl chamber and needed to be unclogged, cleared the blockage and no more bubbles in air line and truck pulled like a horse again.

I'd link you top some threads with pictures but as you're not a full member you won't be able to access them yet

panelbeater · 27-04-2020, 09:39

bansheeeeee you and your love of pine needles.

26-04-2020, 18:43	#1
Daffyd1%er Junior Member Join Date: Apr 2020 Location: Swansea Vehicle: Nissan terrano 2.7tdi Posts: 1	Nissan terrano 2.7tdi air in fuel Hi I'm new to this looking for help I have a Nissan terrano 2.7tdi I have air in the fule system have changed half of the fuel line the rest looks ok but still have air any one have any suggestions on what to try next

26-04-2020, 22:10	#4
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,428	First off how do you know you have air? if you have a bit of clear hose in the line and you see bubbles, where is it positioned, before or after the filter? Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

26-04-2020, 23:01	#6
Banshee Moderator Join Date: Jul 2012 Location: West Midlands Vehicle: 04 2.7 SWB Terrano II Van Posts: 13,526	Welcome mate Best thing you can do is run the truck from the IP out of a Jerry can bearing in mind anything used will bypass back into the main tank if not used, go and take it for a run and monitor performance. First things to look for are fuel filter disintegration or blockage (check manual primer plunger on filter head is not perm sucked down when engine running Then check the fuel lines all the way back from the IP down the chassis rail back to the tank. I have also had issues this far back with my first Ford Maverick (same as Terrano) it appeared that conifer needles had been finding their way into the tank when i was filling up with veg oil on the drive, these had all become stuck in the swirl chamber and needed to be unclogged, cleared the blockage and no more bubbles in air line and truck pulled like a horse again. I'd link you top some threads with pictures but as you're not a full member you won't be able to access them yet __________________ Moderator 04' Terrano II SE 2.7 TDi SWB Commercial in Silver - Project Thread Toyo Open Country M/T 33's on 10J Steels, Super Strong Steering Job Navara D22 Snorkel, Front LOKKA, Maunal Hubs, EGR Blank TunitII ECU Chip, 3" Body Lift, 2" Suss Lift, Heat Exchanger Black Interior, 3.0 Borg&Beck Clutch, Eckes Heated Fuel Filter 99' Y61 Patrol GR SE 2.8 TD6 LWB in Blue/Silver - Project Thread Engine Transplant - In Progress!!!

26-04-2020, 21:53	#3
terranosaurusdoug Senior Member Join Date: Sep 2014 Location: Yorkshire, J33 M62 Vehicle: 2000 Terrano lwb 2.7TDI Posts: 5,500	Bypass your fuel filter and fit a small inline one temporarily, if that stops the air then the rubber membrane in the fuel primer has deteriorated. Do not use an inline filter with paper filament, they are for petrol, use one with metal or plastic gauze

26-04-2020, 22:11	#5
D2206 Member Join Date: Apr 2020 Location: .... Posts: 82	Was the leak there before you replaced the fuel pipe or after? All you can do is check all the joints and see if there's any seepage from the joints. As Doug has already mentioned, its worth bypassing the filter to see if thats the cause. Failing that, you can always pressure test the feed line to the injector pump.

27-04-2020, 09:39	#7
panelbeater Senior Member Join Date: Dec 2012 Location: clacton on sea essex Vehicle: nissan terrano 2 2.7 tdi Posts: 1,637	bansheeeeee you and your love of pine needles.