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Engine cut out after service

Gos55

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Sep 17, 2023
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Engine cut out after service




Hi guys…I seek for some advices please

Problem : after an full service (oil/filters)

I need to mention this: after I changed the fuel filter I didn’t primed fuel into fuel filter as it was first time for me when I changed the filter on this car so I try to start the car for 10 times with engine trying to start (I’m so stupid sometimes) after this tries I looked on YouTube and educated myself and primed the diesel and the lc started with no problems.

I drived the car for 1 week after all o this approx 200 miles and
after that the issues start to appear…starts and cuts out in 1 second just cut out in middle of junction waited there for AA meanwhile I started to look around for issues disconnected the batteries that didn’t work, disconnected all the plugs from fuel filter and Maf sensor that didn’t work either at one point the car started from no where and I drive it home with no issues . Next day try to start the car same problem stars and cuts out after one sec called the aa again and this time they arrived but unfortunately didn’t find out what is it on tester is no issues at all just said is someting regarding to diesel..anyway.
one mobile mechanic changed the scv valve that didn’t work and look like it make it worse..when I spin the key the engine looks like is trying to spin after 1 or2 seconds but before doesn’t have that lag.
Also I changed again the fuel filter.

Now after all of this I’m looking for an specialised Toyota mechanic or Land Cruiser specialist or someone with fuel circulation knowledge I’m based in Hertfordshire and looking something around or a mobile mechanic.

First video is when it let me down first time and second video is after I changed the scv valve.

Land Cruiser 120 Prado, 3.0 diesel, 05’

Sorry for my bad English and thank you in advance.
 
I'm not totally convinced this is related to your service work - any problem would have probably showed up before you managed to drive it 200 miles.

Are you getting diesel through your filter - if you remove the output hose (the one that goes from the filter to the high pressure pump) and pump the primer, do you get a decent flow of diesel coming out? Try spraying some easy start into the air intake and see if it starts for a few seconds longer. This would at least confirm its a fuel problem.

What is your battery voltage on both batteries? Removing the negative on each one to test.. The immobiliser on these can be very sensitive to low battery voltage.

Re SCV - its unlikely this has made it worse, unless it was fitted incorrectly. Please post a picture of whats been done (pic is better than video). Is it possible that the slower cranking is just due to the battery getting tired from all the failed starts?

When did you last put diesel in? Is it from your usual garage - its always possible you've got bad fuel.

Also you mention two videos, but only one is attached as far as I can see
 
I'm not totally convinced this is related to your service work - any problem would have probably showed up before you managed to drive it 200 miles.

Are you getting diesel through your filter - if you remove the output hose (the one that goes from the filter to the high pressure pump) and pump the primer, do you get a decent flow of diesel coming out? Try spraying some easy start into the air intake and see if it starts for a few seconds longer. This would at least confirm its a fuel problem.

What is your battery voltage on both batteries? Removing the negative on each one to test.. The immobiliser on these can be very sensitive to low battery voltage.

Re SCV - its unlikely this has made it worse, unless it was fitted incorrectly. Please post a picture of whats been done (pic is better than video). Is it possible that the slower cranking is just due to the battery getting tired from all the failed starts?

When did you last put diesel in? Is it from your usual garage - its always possible you've got bad fuel.

Also you mention two videos, but only one is attached as far as I can see
Hi Karl, I mentioned is related to my service as it was done by me and as I specified I didn’t primed fuel into fuel filter first time and I try to start it for roughly 10 times.
All I can say about the fuel flow I didn’t measure the pressure but I have some flow.
The batteries was tested by AA and he said the are in good condition also I disconnected and let them rest for 15 mins and connected back still no change.
I usually refuel from shell also this time from shell..it had enough fuel .
The second video is not uploaded as is similar like the first one the only difference is when I spin the key the engine try to start after 1-2 seconds as before that happens after I changed the scv valve. Before didn’t had that gap of 1-2 secs.
 
When you press the primer button on the pump, how many pumps does it take before you cant press it anymore?
 
When you press the primer button on the pump, how many pumps does it take before you cant press it anymore?
I will say 4-6-8 after I try to start the engine..somehow means some fuel go trough I belive
 
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Yes, that primer needs to be stiff/rigid when successfully hand primed.
If you can start it again by Karl's method, then try pumping the primer as its running, to see if it keeps running.
It's rare but not unknown for primer diaphragms to let air into the system.
You could also try the can/bottle of diesel trick, hang up/keep high with a hose directly to injector pump (after disconnecting original of course) This will by pass the filter housing.
Also the replacement scv, was a new gasket or sealant on old used on replacing, and was the area around it scrupiously clean before starting work - you don't want any shite in the injector pump.
Was the new scv the updated long version, there are still a few of the old short ones about fitted originally.
 
Yes, that primer needs to be stiff/rigid when successfully hand primed.
If you can start it again by Karl's method, then try pumping the primer as its running, to see if it keeps running.
It's rare but not unknown for primer diaphragms to let air into the system.
You could also try the can/bottle of diesel trick, hang up/keep high with a hose directly to injector pump (after disconnecting original of course) This will by pass the filter housing.
Also the replacement scv, was a new gasket or sealant on old used on replacing, and was the area around it scrupiously clean before starting work - you don't want any shite in the injector pump.
Was the new scv the updated long version, there are still a few of the old short ones about fitted originally.
Yes, it becomes stiff..I tried this method twice with no results(to start the engine and try to prime diesel)…I’ll try again .
I will also try the method bottle of diesel trick.
The scv replacement was done in good condition clean with the small oring/gasket but..as I double checked on internet I found out it need to be the long version and the new one I fitted is the old short version as the old one.
 
I’m not sure if I’m aloud to post sites but the name is pfjones co uk . It was new . denso manufacture
Its a bit hard to tell if they are selling genuine denso, or made for denso.
 
Why are they selling that old shite, they really should know better

Yeah..so I’m in no luck for the moment as I called some garages it seems like some mechanics want to do just the service/maintenance but when is about an unknown situation prefer to pass me to another one and so on.
Also I called an Toyota approved service and they said it will charge me £180\hour for labour or to identify the issue as I think is a ripoff
 
By now those short ones should be obsolete, and I think TonyP had trouble with that seller over injectors was it ??
Sounds like they're clearing old stock ?

IIRC, scv has 2 0 rings, or maybe it is 1 on short version, and new gasket doesn't come with it, it's a metal type gasket.


Don't go to Toyota for stuff like this, unless you are an unelected millionaire P.M.
 
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Did you try the suggestions of using easy start in the intake, or running it off a bottle of diesel?

Also see if Tony replies to your thread on the other board...
 
Did you try the suggestions of using easy start in the intake, or running it off a bottle of diesel?

Also see if Tony replies to your thread on the other board...
Yes last night and it looks the same..now I’m thinking maybe is something electric
 
Which did you try and how did you set it up?

Do you have any dashboard lights on?

Do you have access to techstream or similar?

Did you see tonys recommendation re SCV
 
Which did you try and how did you set it up?

Do you have any dashboard lights on?

Do you have access to techstream or similar?

Did you see tonys recommendation re SCV
Update: i tried the bottle trick and discovered I don’t get any fuel from tank->fuel filter so I presume the issue is somewhere from fuel pump from the tank or other issue around that area.
Also I primed 1 litter of diesel in a bottle I stick the pipe that’s go in the engine from fuel filter and it seems the engine suck diesel but still not starting and my question now is the main fuel pump suck diesel by it self? The engine need a certain pressure of diesel to run?

Regarding scv valve I can’t find the post you say but all I can say it’s the old Version and it will be changed after all this mess with new version. Thanks
 
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