2006 Prado stalling and starting issue

[Wettergreen]

Hi,

Last summer my j120 had a period where it suddenly would stall at low rpm and idle and was very difficult to start - if it would start at all. On my way home from an errand out of town it died in a roundabout and I had to get a friend to come tow it while I hopped on a flight home. Anyway, after a week and a switch of battery (unrelated?) in the car key it started fine and had no issues. Until now, a year later, the same issue.

At low rpm it dies and won't restart unless I reconnect the battery. In idle it sits at ca 700rpm and occasionally dips to 650; it might recoup to 700rpm a few times until it eventually dies. As long as I keep rpm high the car drives perfectly.

No error codes present themselves.

What do you all think?

 

[OG Zuninja]

Mileage? When was the last time the ignition was serviced? What about fuel delivery? With no knowledge of your vehicle's service history, we're flying blind.

 

[Wettergreen]

Mileage? When was the last time the ignition was serviced? What about fuel delivery? With no knowledge of your vehicle's service history, we're flying blind.

I bought it >1 year ago 170000km - been driving it a lot. Now sits at 209000km. I've personally had it serviced twice, a major one at 190k and another now at 205k - right before the issue presented itself again. Unsure if ignition is looked at/service during the major one at 190k.

Some googling brought me to the thought of it being the suction control valve - at least the symptoms were similar... Am I just guessing here or could it be?

 

[OG Zuninja]

What exactly was serviced? There's a lot of information still being left out. You very well could be guessing.

Now that you mention "suction control valve", that changes things a bit and gives a small glimpse at what direction we can go for troubleshooting.

 

[Wettergreen]

What exactly was serviced? There's a lot of information still being left out. You very well could be guessing.

Now that you mention "suction control valve", that changes things a bit and gives a small glimpse at what direction we can go for troubleshooting.

To be honest I think not too much. I'm not very satisfied with the Toyota car maintenance service - they do more talking than maintenence. But they follow a maintenance schedule/booklet, and I have the papers - just not on me atm since I'm away at my cabin without my car of course.

The last (smaller) service however,
"maintenence according to booklet (21 years/315000km)
Oil filter
Synthetic oil"

 

[Wettergreen]

To be honest I think not too much. I'm not very satisfied with the Toyota car maintenance service - they do more talking than maintenence. But they follow a maintenance schedule/booklet, and I have the papers - just not on me atm since I'm away at my cabin without my car of course.

The last (smaller) service however,
"maintenence according to booklet (21 years/315000km)
Oil filter
Synthetic oil"

My prado is at a workshop currently but the guy can't find any error codes and is somewhat bewildered. He - probably googling as well - mentioned SCV. was hoping this was a known issue - and that a fix was straight forward. Not very keen on a "changing parts until it solves itself" approach.

 

[OG Zuninja]

Firing the parts cannon at the problem is a method but not an effective one. I assume you have a diesel. We don't have the diesel J120 in the States so its tough for me to help very much.

That said, if you're having stumbling, it seems you could be having fuel delivery issues especially considering the age of the vehicle. What exactly is the problem is the tough part. Does your guy have a way to check the fuel pressure and see if its within tolerance?

 

[FrankTorres]

What engine do you have in your Prado?

 

[Wettergreen]

What engine do you have in your Prado?

3.0 D-4D 1KD-FTV 4x4 (122 kW)