Hilux help - Questions from a newb.

Mike222

New Member
#1
Hey everyone,
Apologies if there is already a thread on this or it is meant to be posted elsewhere. I have quiet a few questions, in which I have done some research into myself, however I tend to find alot of information contradicting (some sites say you should others say you shouldn't).
I own a 2007 Hilux 3lt D4D. Had it for a while and love it, but due to its age the problems are starting.
Firstly, it is blowing black smoke (mainly when it is cold) however you can notice a difference in power. During a recent service the mechanic conducted a "EFI clean" and it did make a difference, he recommends I get my injectors replaced as he can hear "pre-det" and quoted me 1k per injector.
Is 1k per injector a reasonable price?
Is it bad to continue driving if the injectors need replacing?
(I put injector cleaner additive in about 8,000 km ago. Should I continue to do this?)

Finally, I read that every couple of weeks I need to drive my Hilux hard (rev high range in low gear) which will help blow out any build up - is this a thing?

I feel dumb for asking these sorts of questions, but hopefully you guys can point me in the right direction.

Cheers!
 

Cokedaddy216

Well-Known Member
#2
Go to super cheap auto buy a 1 litre bottle of fuel doctor , it is green in colour , poor the whole bottle in your fuel tank then fill up .
Drive it till needs more fuel if you are happy with the results keep using it as per instructions .
No doubt some honky will say it's bullshit , just try it man it won't hurt your engine & it will save you thousands from what you say the spanner man said .
 

Mike222

New Member
#3
Go to super cheap auto buy a 1 litre bottle of fuel doctor , it is green in colour , poor the whole bottle in your fuel tank then fill up .
Drive it till needs more fuel if you are happy with the results keep using it as per instructions .
No doubt some honky will say it's bullshit , just try it man it won't hurt your engine & it will save you thousands from what you say the spanner man said .
Alright mate, i'll give it a shot over the weekend, Cheers for the response!
 

red hilux

Well-Known Member
#4
The early model 120 prado d4d did have injector problems, plus oil starvation due to clogged oil pick up.

Your hilux would have the same engine. If the injectors haven’t been done. Highly recommend you get them checked by an injector specialist and not just a mechanic. Also. Next time you service your car. Drain your oil and let it sit for a couple hours. Grab a torch and look up the sump drain hole. You should see the oil pick up screen. Look really hard for any black crap stuck the the screen. It must be clean. If you see anything, drop your sump, take the pick up off and clean it.
 

discomatt

Well-Known Member
#5
Isn't it the injector seals that are the issue and if they have never been done I would be replacing them and the injectors and cleaning the oil pick up out asap
 

Hylux

Active Member
#6
injector seals were a problem at that era but it eventually was a recall. If it wasn't done your engine would have blown up by now due to the oil screen pick up blocking up.
spend around $80 at Toyota and get a cold start injector test done. They will give you a 2 page report on injectors and many other things as well.
beware of mechanics saying they sound like they need replacing, they can be a rattly motor.
 

Albynsw

Well-Known Member
#7
Isn't it the injector seals that are the issue and if they have never been done I would be replacing them and the injectors and cleaning the oil pick up out asap
Matt has summed it up
I had a Hiluxthe same model as you from new
Water pumps seem to go around the early 100k mark, they revised them on later models, I had my injections replaced under warranty at 100k as well
You need to inspect your oil pickup screen which you can easily do with a torch through the sump plug when doing an oil change to make sure it isn’t blocked from leaking injector seals which was an issue with the earlier D4D motors
Have a bit of sting around regarding injector replacement prices as they are not as pricey as they used to be but you would need to get your current ones checked first to see if they are ok or not
How many K is on yours?

There is a heap of info available to you at www.newhilux.com
 

Cokedaddy216

Well-Known Member
#8
I've been thinking about your hilux matie as I drive one .
Before you were to pay out all that coin you were quoted , I'm not sure if you can have your turbo tested with a computer but if I was a betting man I would put my money on the variable vein on the turbo being carboned up & not opening & closing !
That would contribute to the black smoke & loss of power , vein closes when slow open when full noise .
 
#9
I've been thinking about your hilux matie as I drive one .
Before you were to pay out all that coin you were quoted , I'm not sure if you can have your turbo tested with a computer but if I was a betting man I would put my money on the variable vein on the turbo being carboned up & not opening & closing !
That would contribute to the black smoke & loss of power , vein closes when slow open when full noise .
Hey mate,
Cheers for your suggestion, I haven't even considered that. I will get it tested this weekend. Currently on the search for a decent Diesel specialist in Brisbane.
I'll throw put up some updates as I go!
 
#13
Hey mate, cheers for the follow up. Put some Doctor in the tank and changed the oil so I could check the oil screen, all seemed well. Only driven it a small amount since the Doctor, might be too soon to tell but I think it may have done the trick. I am planning on getting the turbo checked just to be on the safe side. Here's hoping it solves the problem and not a $4k injector replacement :D
 

Cokedaddy216

Well-Known Member
#14
Hey mate, cheers for the follow up. Put some Doctor in the tank and changed the oil so I could check the oil screen, all seemed well. Only driven it a small amount since the Doctor, might be too soon to tell but I think it may have done the trick. I am planning on getting the turbo checked just to be on the safe side. Here's hoping it solves the problem and not a $4k injector replacement :D
Just keep driving it brother , save your coin , run that tank full through , gotta love the doctor keeps them spanner chucker away :cool:
 
#15
Just keep driving it brother , save your coin , run that tank full through , gotta love the doctor keeps them spanner chucker away :cool:
Hey mate,
Quick update, after running the Fuel Doctor through a full tank I have had great results. Feels less sluggish during take off and has had a decrease in black smoke. Appreciate the advice mate, saved me a few thousand!
I think I will still look at getting the Turbo tested towards the end of the year but for now I am stoked with how well the Fuel Doctor worked out

Cheers mate.
 

Bomber2012

Well-Known Member
#16
@Mike222 when you do need new injectors contact Bailey Diesel Group in Wollongong , they supply reco injectors that are better than Toyotas and half the price . I was recommended them and did mine a few years ago 2006 Hilux , service was great and no problems since .
 

Cokedaddy216

Well-Known Member
#17
Hey mate,
Quick update, after running the Fuel Doctor through a full tank I have had great results. Feels less sluggish during take off and has had a decrease in black smoke. Appreciate the advice mate, saved me a few thousand!
I think I will still look at getting the Turbo tested towards the end of the year but for now I am stoked with how well the Fuel Doctor worked out

Cheers mate.
Save your self some more coin brother there a thing that sits on the dash plugs into the port under the dash , reads battery , boost pressure all sorts shit radiator temp the list is endless just don't recall the brand ;) if I remember i'll let you know .
 
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