1.4 D4D Fuel Filter Change How?

[ccvrs]

Hi

Yaris cut out a second time today, I've ordered a new fuel filter, can anyone tell me where it is and a quick guide on how to change it. I've done a search but can't find anything, also tried the manual links on here but they just cover the petrol model.

Thanks.

[Madasafish]

Instructions for Mark1 d4d.. You have not told us age and model so I hope it's the same.

Only done it once so I may have forgotten something.

Ignition off, drain filter - valve at bottom.

Remove electrical cables to give space.

Unscrew filter and remove - a contortion.

Replace with new...Replace cables.

Pump little rubber button - on top - right hand until filter is full of fuel - button turns hard.

Start engine.

[carlowlad]

Spot on, madasafish. Only mine refused to start for a while but did eventually. Ran lumpy for a few days too afterwards. I'm sure i did it right too. It's not a difficult job, just a little messy and needs a bit of faffing around. And i like faffing....

[ccvrs]

Thanks, it's a late 2006 model. I guess the filter is on the bulkhead behind the Battery.

[Rayburn]

You might find this is not your problem.

After fitting new filter and re testing it. Clean the air throttle chamber/body on the front of the engine, left side.

These normaly get clogged with oil soot etc and has a small hole in the body that needs cleaning out.

R

[Nick7]

On 10/28/2011 at 12:44 PM, Madasafish said:

Instructions for Mark1 d4d.. You have not told us age and model so I hope it's the same.

Only done it once so I may have forgotten something.

Ignition off, drain filter - valve at bottom.

Remove electrical cables to give space.

Unscrew filter and remove - a contortion.

Replace with new...Replace cables.

Pump little rubber button - on top - right hand until filter is full of fuel - button turns hard.

Start engine.

Hello madasafish. I’m having this same issue now with my mk1 d4d (55 plate phase 2 facelift). Would you please provide me with some more detailed instructions on how exactly to replace my fuel filter? There is nothing in the manual or the Haynes guide about how to do this. 

My car cut out twice yesterday after nearly 10k miles absolutely issue free since I bought it. It threw up and eml fault code 1229 and also the drain water light came on. So I’m guessing my first port of call would be to replace fuel filter  

In that time I’ve serviced it twice myself using your method which I read on this very forum.

Your swift response would be appreciated. 

[Nick7]

changed the fuel filter but no good. keeps cutting out at low speeds with fault code p1229?

could it be the fuel pump or fuel pressure regulator or something else?

[Madasafish]

Could be: fuel pump - low pressure. Check pressure..- specialist job.

EGR valve choked up with carbon..DIY job

Failing acclerator switch at bottom of pedal..  (Drive by wire acclerator).. Check signals.

 

I would clean the EGR valve first - diy..

[Nick7]

9 minutes ago, Madasafish said:

Could be: fuel pump - low pressure. Check pressure..- specialist job.

EGR valve choked up with carbon..DIY job

Failing acclerator switch at bottom of pedal..  (Drive by wire acclerator).. Check signals.

 

I would clean the EGR valve first - diy..

Hi madfish. 

I doubt it’s fuel pump but will have to get a mechanic to check pressure to be sure. 

Not fuel filler replaced as a matter of course today. 

Definitely not egr valve was cleaned manually along with throttle body 2k miles ago. 

Could be accelerator switch. However when it cuts out engine light keeps throwing up error p1229 which is showing as problem with fuel pump/fuel system. Why would it throw up this code over and over even after I try and clear it each time it cuts out if it was the accelerator switch ? 

Ive been researching various sources all afternoon and the only solution which keeps cropping up where people have solved this intermittent fault is by replacing one or more of the 4 diesel injectors. It seems that it may be that one or more of the injectors may be delivering too much fuel compared to the others causing this issue? 

Im not sure but obviously if it is the injectors causing it then as you previously suggest it is a job only for a highly qualified diesel mechanic / injector specialist company.

I will Remove and clean the sender unit in the fuel tank and clean the fuel heater unit at the top of the filter housing tomorrow also of any gunk but I highly doubt either of these things will resolve this issue. Pretty sure it’s one or more faulty injectors causing this problem which will need to them be replaced. 

Your thoughts would be appreciated. 

 

[Nick7]

Actually thanks for the link to the thread. If not the injectors then may be :-

the MAF sensor needs cleaning which hasn’t been done. (Although mine is cutting out at low speeds - under 40mph?) also even after I replaced fuel filter it threw up the drain fuel filter light for a second along with engine management light when it cut out.

Or could be maybe egr delete will solve it? 

Again if it’s these things why is it throwing up fault code p1229???????

[Nick7]

44 minutes ago, Madasafish said:

Could be: fuel pump - low pressure. Check pressure..- specialist job.

EGR valve choked up with carbon..DIY job

Failing acclerator switch at bottom of pedal..  (Drive by wire acclerator).. Check signals.

 

I would clean the EGR valve first - diy..

may i direct you to this post which has lead me to believe it may be the injectors:- 

 

what do you think?

 

1 or more injectors pushing out oil to quickly may be the issue???????