Terrano surging at low revs

[MikeB]

HI,

I have a 96 Nissan Terrano, 2.7 turbo diesel which surges from time to time when idling. It seems far more prevalent when the engine is cold. Does anyone know what this means? Secondly the check engine light comes on sporadically from time to time. The two don’t appear to be related, am I wrong? Any advice would be kindly appreciated. Is it an easy fix, something non-serious or is it something much more major. I have only owned the Vehicle for two months so do not know its history well. Other than these two issues it seems to run very well.

Thanks in advance
Mike

[tweake]

i don't know that year. i assume its ECU controlled, in which case you should be able to pull up error codes.

is the EGR system blocked off including any EGR butterfly in the intake ? the EGR system is a really common source of drivability problems.

check engine is not overfilled with oil.

[long]

Check out the pump filter.
Look under the power steering pump
You will see a big nut 17mm take it our BECAREFUL there is a copper washer on the top and one under the banjo fitting.
Move it to the side
Useing a bic pen push into hole pull out a small spring
Again push into hole BECAREFUL pull out a small filter about the size of small finger nail u will most like find its half caked up wif crud blow it clean or wash it reinstall is reverse of removel ofcause You should also see an increase in power if it was blocked up

[natedogg]

Check out the pump filter.
Look under the power steering pump
You will see a big nut 17mm take it our BECAREFUL there is a copper washer on the top and one under the banjo fitting.
Move it to the side
Useing a bic pen push into hole pull out a small spring
Again push into hole BECAREFUL pull out a small filter about the size of small finger nail u will most like find its half caked up wif crud blow it clean or wash it reinstall is reverse of removel ofcause You should also see an increase in power if it was blocked up

would this apply for all diesels or just the 2.7 nissan??

my 3.1 isuzu has just started surging at idle too.

[curly12]

Applies to the 4.2 nissan as well. Did mine this week and it was gunked right up. Now running better

[marty1]

+Hi I have 1997 3.2 terrano. the nut under the power steering on mine is about 23mm. Is it the one as i have a simalar problem, hoping mine isnt the injector pump.cheers Martin

[long]

As long as its the banjo fitting yes it will be the same

[rangimotors]

HI,

I have a 96 Nissan Terrano, 2.7 turbo diesel which surges from time to time when idling. It seems far more prevalent when the engine is cold. Does anyone know what this means? Secondly the check engine light comes on sporadically from time to time. The two don’t appear to be related, am I wrong? Any advice would be kindly appreciated. Is it an easy fix, something non-serious or is it something much more major. I have only owned the Vehicle for two months so do not know its history well. Other than these two issues it seems to run very well.

Thanks in advance
Mike

exactly the same problem i have, love to know what you found

[4wdnuts]

i also have this problem but have just lived with it as i wasnt sure what it was. hopefully we can all find out if this is the cure.

[Landy Rover]

To all of you with the ETI engine, if it still accelerates well and can rev out under load above 4000rpm then the little filter in the pump wont be your prob. If your getting check engine light coming on get it scanned for the code and sort that issue first. If you still have hunting probs stalling etc its more than likely the electronic control in the pump. If kms are up around or above 200,000ks these issues normally arrise with these ETI engines..

[rangimotors]

just to add every now and then when i start it in the morning for the first min or two the gas pedal does nothing at all, I can put my foot flat on he floor and it just stays on idle. I also have the check engine light and surging at idle. I think it is either the electronic governer in the pump or the POT for the accelerator. I will be getting mine sorted and belive a pump is about 1400 to recon so i will update you all when I have it sorted.

[4wdnuts]

has anyone cleaned out the wee filter yet and noticed a difference? i see there is to banjo fittings going into the pump. is it the one on top or the one down the side that has a larger bolt?

[long]

Its the banjo fitting on top of the pump directaly under the power sterring pump on a Terrano use a 17 mm dia ring spanner

[R_ace-link]

Check out the pump filter.
Look under the power steering pump
You will see a big nut 17mm take it our BECAREFUL there is a copper washer on the top and one under the banjo fitting.
Move it to the side
Useing a bic pen push into hole pull out a small spring
Again push into hole BECAREFUL pull out a small filter about the size of small finger nail u will most like find its half caked up wif crud blow it clean or wash it reinstall is reverse of removel ofcause You should also see an increase in power if it was blocked up

Hey guys newbie here,

not so newbie on the navara forum though,
anyways, I recently swapped my YD25 for a TD27ti. and I replaced the electrical inj. pump with a mechanical inj. pump. The small filter on the inj. pump you guys are talking about, I can't seem to find it. the problem is that I don't know if the mech inj. pump is a TD27ti or a TD27 model

I really could use some help.
Regards
Race

P.s how do place pics on this forum?
I wanted to place the pic of the inj.pump

[SP450andLE]

P.s how do place pics on this forum?
I wanted to place the pic of the inj.pump

You have to upload them to Photobucket (or similar), resize them to 640x480, and paste the IMG code into here. Or click on the "Img" button when writing a post, and put the URL for the image [img]here[/img]

Hope that helps

[long]

its on top of the pump and has a banjo fitting under it.

Check out the pump filter.
Look under the power steering pump
You will see a big nut 17mm take it our BECAREFUL there is a copper washer on the top and one under the banjo fitting.
Move it to the side
Useing a bic pen push into hole pull out a small spring
Again push into hole BECAREFUL pull out a small filter about the size of small finger nail u will most like find its half caked up wif crud blow it clean or wash it reinstall is reverse of removel ofcause You should also see an increase in power if it was blocked up

Hey guys newbie here,

not so newbie on the navara forum though,
anyways, I recently swapped my YD25 for a TD27ti. and I replaced the electrical inj. pump with a mechanical inj. pump. The small filter on the inj. pump you guys are talking about, I can't seem to find it. the problem is that I don't know if the mech inj. pump is a TD27ti or a TD27 model

I really could use some help.
Regards
Race

P.s how do place pics on this forum?
I wanted to place the pic of the inj.pump

[R_ace-link]

hope it works

[R_ace-link]

Do you mean where the fuel line goes in

[long]

Yes where the fuel line bolts on top of the pump

Do you mean where the fuel line goes in

[phaedrus]

Hey Race, are you having problems with surging even with the mechanical pump or are you just generally interested in where the little filter is? If it's surging it could just be you've not got the timing right.

Also interested in the electronic pump you removed - was that motor you fitted originally an eti unit and was there something wrong with the pump? I'm on a bit of mission to understand more about the electronic pumps...

P.

[R_ace-link]

Hi mate,

nope just a little interested in whether or not my engine has the small filter.
the only trouble I have is in the morning when starting the engine, it takes like a long time before the engine starts and at startup it looks like idling on 3 cylinders. but when engine temperature is hot, it idles very smooth. I already checked the heater plugs, they are good. so it can't be that and it can't be the timing.

about the engine itself,

well I don't trust the electronic injector pump, because where I live ( SOUTH-AMERICA SURINAME) there aren't diesel shops which repair those kind of pumps. that's why I replace it with the mech inj. pump.

[R_ace-link]

I know I'm not supposed to high jack this topic but, I really need to know which kind of a turbo is fitted on this engine, compressor housing is .48a/r and M27. kind find any Garrett turbo with those numbers. don't know if it's a GT1548 or GT1549 or even bigger?

[long]

What is the engine size or better still give me a g mail adddy and i will e mail you what i have here on disc to suite the TD 2.7 T and the V6 moldel terrano/Pathy which also covers the 2.3 Diesel motors.
Im sure you will find out what you want to know in there some where.

[R_ace-link]

there's some things you have to know about the engine and what I used it for, long story short check out this link

(hope you don't have to register)
http://www.nissan-navara.net/viewtopic. ... 4&start=10


I replaced the YD25 (the one that goes boom ) with the TD27eti ( I think it's the TD27eti )

I actually do not know witch car the TD27 came out off

ANYWHO,

what's your email?

[R_ace-link]

there's some things you have to know about the engine and what I used it for, long story short check out this link

(hope you don't have to register)
http://www.nissan-navara.net/viewtopic. ... 4&start=10


I replaced the YD25 (the one that goes boom ) with the TD27eti ( I think it's the TD27eti )

I actually do not know witch car the TD27 came out off

ANYWHO,

what's your email?

[phaedrus]

Hi Race, thanks for the info. I wonder how you timed your engine? Hard to start can mean it's too far retarded. Does it blow any smoke when it's surging? Did you do the egr mod? In my eti machine the ecu was doing some weird stuff with that - made a big difference to disable it.

Also I'm interested in your conversion 'cos I've recently done the same thing. I don't have any surging issues tho'. However I've not yet got the tacho running and the auto can be a bit harsh in change if there's not much power on - I wonder if you've addressed any of these issues yet?

Cheers, P.

[R_ace-link]

Hey P,

Nope no blowing of smoke at all. the first time we started the engine it was like it was idling on 3 cylinders, even when engine had operating temperature it still was like it was idling on 3 cylinders. and smoking a lot too. greyish smoke in fact.
then my nephew did something to the inj pump and was idling smooth, only thing was that it was hard to start( takes about 7sec or more to start ). now only surge or like it's miss firing when cold.

the funny thing about this engine is that it doesn't have a EGR .
didn't get the tacho running also. and mine is a manual transmission.

it gives a kick when planting your foot down. waiting for my boost gauge so I can see how many psi the turbo is running.

do you know what kind of a turbo has been placed on the TD27eti engines? compressor A/R.48 and M27 written on the compressor housing too. I know it's a Garrett but which one of them

[phaedrus]

Hi Race, no I'm sorry I don't know about the turbo off-hand. I think mine's covered up too but will have a look and see what I can this w/end.

Your issue could still be timing, or some other issue with that inj pump. I made up an adapter to fit my dial gauge and timed it according to the book. Your description of problems is much like a timing fault. If it's too far retarded it will blow smoke and idle roughly, if it's advanced a little it will improve but can still be hard to start until it's right. To advance it you turn the pump away from the engine - possibly worth a try (it might be worth finding out what exactly your nephew did to the pump that made such a difference previously).

If I have time to get my tacho sorted I'll let you know what's needed.

Lucky you with the manual, my preference too but none available and I'd probably go Toyota on that anyway...

Cheers, P.

[sibainmud]

That TD27eti is out of a Mistral. They were the only ones to have a top mount intercooler, the R50 Terrano have a front mount cooler. I have retro fitted one of these coolers to my standard TD27t. See the similarities.


Your problem could be an injector. When it is running on 3, loosen each injector pipe in turn to see which cylinder is causing the issue. The one that makes no difference is the problem one. Eti engines have a sensor in number 1 injector that is hooked to the ecu.
PM TD Power, with the turbo and pump questions. He eats, breaths and shyts Nissan diesels

Cheers,

[SP450andLE]

Simon! That hose is partially clean! What a disgrace!