120 Prado stalling

[bellie Lurker Find all posts View Profile Close bellie]

Hi All,

Long time member first time posting.

I have searched the forum but cannot find the exact problem I'm having so I am going to try my luck with this post.

I have a 2007 D4D 120 Prado with 180,000 on the clock.

Over the last few weeks it has started stalling intermittently.

Example: 1) I could be just talking off at a set of lights and it will almost stall. 2) Other times it will stall all together which requires me to quickly put the car in neutral and re start the car 3) Or I could be driving along at 100K's and it will stall completely or almost stall.

What has been done on the car:

1. Car has an impeccable service history
2. MAF sensor cleaned
3. Replace both fuel filters last week just in case
4. Injectors were replaced at 125,000 under warranty by Toyota

Took it to Toyota last week for them to look at it and they have told me:
1. That no error codes evident. (I know that as I run a scan gauge).
2. Checked data list, feedback readings above specified limit (whatever that means) and recommend replacing injectors and pipes at a cost of $2,568.00.
When I told them that they replaced the injectors only 60k ago they said 'well sir you must of got a bad batch of fuel' (yeah right )

I'm hoping someone may have had this same issue as me.

Look forward to a response.

Cheers Todd

[Bushbasher Out of control poster! Find all posts View Profile Close Bushbasher]

Have you checked fuel pump pressure? Also need to ensure the oil pump pick-up screen is clear (not clogged).

[cfryback Find all posts View Profile Close cfryback]

You mention two things that got my armchair mechanic's going here:

Replaced fuel filters - possible air in system? What happens priming the main filter?

Injectors out of spec, I'd get a second opinion on that - but as bushbasher mentioned, what is the pump pressure? It could be the SCV valves as well...

[bellie Lurker Find all posts View Profile Close bellie]

Have you checked fuel pump pressure? Also need to ensure the oil pump pick-up screen is clear (not clogged).

Thanks Bushbasher,

Good points made by both of you. I will be getting a second opinion and have the suggested points looked at.

Thank you for your advise and I will keep you updated.

Cheers, Todd

[bellie Lurker Find all posts View Profile Close bellie]

Have you checked fuel pump pressure? Also need to ensure the oil pump pick-up screen is clear (not clogged).

Thank you both for your input,

Good points made by both of you. I will be getting a second opinion and have the suggested points looked at.

Thank you for your advise and I will keep you updated.

Cheers, Todd

[bellie Lurker Find all posts View Profile Close bellie]

Full marks must go to cfryback.

I have the Prado and the specialists today and they have just come and shown me the SCV valve which is caked in junk.

It will get replace and monitor to see how it goes but they are pretty confident giving the amount of build up around the holes where the fuel is to pass through that this was my problem.

Thank you bushbasher Prado point.

Cheers Todd

[cfryback Find all posts View Profile Close cfryback]

That might have given the high values on the injectors as well.