Question about 1999 Nissan Pathfinder
Nissan Terrano 2.7 turbo diesel starts ok but has no pulling power, painfully slow at pulling away and speed drops drastically on the slightest of gradient. Appears some kind of a fuel problem?
I had the same problem . Local dealer did not seem to know the solution. Eventually trawling these pages I tried changing the air mass metering unit which I got from ebay dealer for about £30 something. The change in performance was staggering. I believe you can clean the unit with a solvent too. It is easy to change yourself and is in line after air filter. Ed
Posted on Aug 28, 2009
Hi guys just letting you no there is also a little filter on the intake to the injector pump. Flow fuel line from the filter to the injector pump remove banjo bolt don't loose the cooper washes .under this normally there is a spring then right in the bottom a small fimble looking mesh filter . Remove it and clean it should make a big difference . Once this is done a good in fuel injector cleaner
Posted on Oct 24, 2012
I had a similar problem with lack of power, not noticeable aroundtown but really noticeable on dual carriageway. Gear change on the automatic box wasn't as smooth as normal and Couldn't rev past 3500, on full throttle , white blue smoke , sounded like a misfire, but only happened on wide open throttle. Suspected fuel starvation so :
Changed fuel filter -no difference.
Disconnected and blew air down the fuelpipes, felt quite difficult and tasted horrible.
Took tank sender out , checked swirl on pickup that was slightly dirty in colour but free of blockage .
Then noticed if I pressurised the lift pump the engine revved better but only for a couple of revs. I had previously tried to find the filter in the banjo on the fuel pump to no avail, but I'd covered off all of the other easy stuff, so went back to the banjo again. This time I removed the spring under the banjo bolt, dug deeper (about 7CM's) into the pump fetched the banjo out, spring out then I had to make long thin hook to fetch the tiny filter out. It was filthy,nearly 20 years of use,probably never been removed before. I did break it getting it out, so left it out, Nissan did the same sometimes
Oh my God, what a difference, its the best its ever been.
Hope this helps others .. thanks
Posted on Aug 08, 2015
OK i have same problem and it got resolve changing the diesel filter and got more power right away but attention have too be genuine parts from the dealer all filter air oil and diesel . att. Francisco from Dominican Republic.
Posted on Jul 15, 2009
Ok, here is another possibility. I was driving and went to overtake, part way through the overtake, the engine just died, eased off on the throttle, to get a little power back, by 200km (120 miles) later, I could barely get to 100 km/h on flat road. Basically the engine was getting starved of fuel when it needed more. So I got a new fuel filter, by another 200km I could only do 50km/h on hills and 80km/h downhill. I was hoping to make it home without having to replace it at night, but that was becoming impossible. I pulled over and replaced the fuel filter (left side of engine bay against fire wall) and bled the fuel system by manually pumping the button on top of the fuel filter, until resistance is felt - this can take a while, as the filter is completely empty, and if you start the engine and it dies, then you haven't pumped it enough. I had to undo the 2 x 12mm bolts which hold the filter mount, to get a good grip to unscrew the filter .
Posted on Jun 22, 2013
I had this and solved it. Take off Mass Air Flow Meter and spray a whole can of WURTH CONTACT WASH AND CLEAN. Whilst you are spraying on the MAF, put a plastic bahind it so that you can collect the spray int it. Put the MAF in the bag with this contact cleaner spray and leave it there for a couple of hours. Blow dry it with compressed air and mount it again back. That's it, !!
Posted on Aug 03, 2012
Tips for a great answer:
Presuming it is swinging (starter turning engine) and the
glow plugs are working well and diesel is clean, the other alternatives are a
drop in fuel pressure through the injectors which is necessary to ignite the
diesel, or engine compression. If the compression is too low the diesel will
not ignite. Test the injectors and
compression across al cylinders. Being a turbo the compression si already lowered and the slightest drop will have an effect. Happy hunting.
Usually answered in minutes!