Dificult To Start Hot Engine

[Rimas]

Hi, i have one big problem, it's dificult to start when engine is hot. I read that smb is trying to fix starter, but in my case it didn't helped.I checked all sensors, tryied to put anothers EDU and ECU also, but the problem remains. So I think the problem will be in supplie pump :( I tried to start with the rope and it was ok! I can start with starter also, but only from the 3 or 4th time. And also if I am trying to start immediatly after it was switched off, it starts quite well, but if more than after 10sec it becomes dificult. Several days ago I went to official TOYOTA service and diagnosis didn't show anything. Preasure in common rail system is 32mpa, according manuals should be 27-37mpa. So, they couldn't say me nothing :( But some day i found in some chats that there are some valves in supplie pump,which can have some influence on starting hot engine, maybe smb was in touch with that??? 20000km ago I changed clutch, flywheel so I have a little bit expierence on that, if smb wants to ask anything, also I have repair manuals on body and engine for avensis 1CD-FTV, if anybody needs it just write.

[Hem-lag02]

Rimas,

I had a similar problem. I travel on the motorway everyday and when I got home, switched off the engine and then tried to resatrt the car, the car would not even turn. If I left the car for 15-30 minutes, the car would start without and problem.

Luckily for me, the day that I took the car to Toyota for repair, I had the same problem of non starting and the service manager said that it was the starter motor. My car is a 2.0D4d 2004 model. The service manager said that there had been a few cars witha similar problem that were a similar age to my car.

Since the replacement of the starter motor,I have not experienced the problem again.

Hem

[AvensisMolester]

Crankshaft sensor was on the way out in my 1999 Avensis and it was very hard started while hot for a few days and then it ended up that it wouldn't start at all either hot or cold. Cold weather may have found a weakness that was in it a good while. Cheap to repair, got a secondhand one for mine and it worked no problem since.

[cmia]

I assume they messured pressure at the injector rail

Question :

If you remesure the pressure when the engine is cold

and remesure when its warm.

Is the pressure diffrent ?

[igormus]

Hi, i have one big problem, it's dificult to start when engine is hot. I read that smb is trying to fix starter, but in my case it didn't helped.I checked all sensors, tryied to put anothers EDU and ECU also, but the problem remains. So I think the problem will be in supplie pump :( I tried to start with the rope and it was ok! I can start with starter also, but only from the 3 or 4th time. And also if I am trying to start immediatly after it was switched off, it starts quite well, but if more than after 10sec it becomes dificult. Several days ago I went to official TOYOTA service and diagnosis didn't show anything. Preasure in common rail system is 32mpa, according manuals should be 27-37mpa. So, they couldn't say me nothing :( But some day i found in some chats that there are some valves in supplie pump,which can have some influence on starting hot engine, maybe smb was in touch with that??? 20000km ago I changed clutch, flywheel so I have a little bit expierence on that, if smb wants to ask anything, also I have repair manuals on body and engine for avensis 1CD-FTV, if anybody needs it just write.

hello

have you seen how did they perform the HP pump test? have you seen these 320 kgf/cm2 ??

For sure the pump has SCV (so;enoid control valve) that enables diesel to be sucted, in case the power is OFF this valve is normally closed.

Besides -- the pump has delivery valve and the meaning of this valve is to remain delivery pressure as constant, as above. This valve is located after the plunger. sometimes due to poor (+) contact this valve criate a problem to admit diesel to be sucted..

cheers/ Igor

[Aamir2892]

I have a similar problem to you about starting a hot engine. When i turn the engine off and then try to start it 1 minute later it doesn't start. The rev needle goes to 1 and then back to 0. The car starts if i press the accelerator pedal while starting it. Any one else have this problem???

[igormus]

I have a similar problem to you about starting a hot engine. When i turn the engine off and then try to start it 1 minute later it doesn't start. The rev needle goes to 1 and then back to 0. The car starts if i press the accelerator pedal while starting it. Any one else have this problem???

hello

it is probably fine fuel filter gives you headache.

cheers

[Aamir2892]

I have a similar problem to you about starting a hot engine. When i turn the engine off and then try to start it 1 minute later it doesn't start. The rev needle goes to 1 and then back to 0. The car starts if i press the accelerator pedal while starting it. Any one else have this problem???

hello

it is probably fine fuel filter gives you headache.

cheers

It's just at that time. Car starts sometimes fine when its warm and always starts fine in the morning.

[igormus]

I have a similar problem to you about starting a hot engine. When i turn the engine off and then try to start it 1 minute later it doesn't start. The rev needle goes to 1 and then back to 0. The car starts if i press the accelerator pedal while starting it. Any one else have this problem???

hello

it is probably fine fuel filter gives you headache.

cheers

It's just at that time. Car starts sometimes fine when its warm and always starts fine in the morning.

in case it's only ocasional issue - then it is better to check with both SCV mounted on the HPP fuel injection pump.

i do not see any others now.

cheers

[Aamir2892]

I have a similar problem to you about starting a hot engine. When i turn the engine off and then try to start it 1 minute later it doesn't start. The rev needle goes to 1 and then back to 0. The car starts if i press the accelerator pedal while starting it. Any one else have this problem???

hello

it is probably fine fuel filter gives you headache.

cheers

It's just at that time. Car starts sometimes fine when its warm and always starts fine in the morning.

in case it's only ocasional issue - then it is better to check with both SCV mounted on the HPP fuel injection pump.

i do not see any others now.

cheers

igor could you give me a bit of more detail on where exactly this is found an how im supposed to check it.

Thanks

[igormus]

I have a similar problem to you about starting a hot engine. When i turn the engine off and then try to start it 1 minute later it doesn't start. The rev needle goes to 1 and then back to 0. The car starts if i press the accelerator pedal while starting it. Any one else have this problem???

hello

it is probably fine fuel filter gives you headache.

cheers

It's just at that time. Car starts sometimes fine when its warm and always starts fine in the morning.

in case it's only ocasional issue - then it is better to check with both SCV mounted on the HPP fuel injection pump.

i do not see any others now.

cheers

igor could you give me a bit of more detail on where exactly this is found an how im supposed to check it.

Thanks

ok be focused on the HP pump itself.

from pump side lid you'll see two SCVs .

these have to be checked.

cheers/Igor

[vinsane19]

ok be focused on the HP pump itself.

from pump side lid you'll see two SCVs .

these have to be checked.

cheers/Igor

Got similar problem - trying to fix it already for few months...

Car - Toyota Corolla 2.0 D4D, 2002 year, Engine 1CD-FTV

When car is cold it starts without problem (starter has to crank 2-3 times), no problem with starting after night, no problem when there is -20 celsius degrees outside :)

After I drive few kilometers and engine gets hot, when I stop the engine and try to start it once again I have to crank it very long...

The hotter is the engine/car, than it takes more time to start it. If I stop the engine and quickly turn switch back to ON position, just to make all the "icons" light on it will start normally - it has to be done before I hear "click" from fuel pump relay. After the click I need to crank it...

There is no errors in the log when starting engine. Few times "check engine" came up, this happens when rpm gets quite low (e.g trying to get on something with my car, but not pressing the accelerate enough). Then the error is 78(7).

Starter was checked and it is fine...

Fuel filter was replaced... twice..

SCVs on the injection pump were replaced with new ones but the problem remains the same.

I have checked Circuit Opening Relay (fuel pomp relay) and EFI realy - both are fine and working.

When starting hot engine, pressure on the common rail is rising gradually (while cranking), until it reaches about 25MPa and engine starts.

Mechanic told me that when engine finally starts, the pressure on the common rail is normal.

Tester showed that corrections on injectors are 1: -0.5, 2: -0.4, 3: -0.6 4: -1.8

Any idea what to do next? I really don't know what to do witch this car...

[cmia]

Ok

1st rule of any POST is do not mix your questions and look at other diagnosis.

2nd dont post trash

reason being is it becomes extremly difficult to HELP and understand problems when the users are posting irrelevant information on the post due to the engine type or car type being DIFFRENT spec then Original Poster.

@ vinsane19

1 - I would be looking at swapping the starter motor,

2 - checking main and fuel pump relay.

3 - coolant sensor - faulty

[vinsane19]

Ok

1st rule of any POST is do not mix your questions and look at other diagnosis.

2nd dont post trash

reason being is it becomes extremly difficult to HELP and understand problems when the users are posting irrelevant information on the post due to the engine type or car type being DIFFRENT spec then Original Poster.

@ vinsane19

1 - I would be looking at swapping the starter motor,

2 - checking main and fuel pump relay.

3 - coolant sensor - faulty

Just to justify myself. Avensis made in the same time as my corolla, has the same engine, the same fuel injection pump and injectors that's why I posted this here. But thanks for your answer. I will keep it in mind and sorry for that.

1)Starter was checked and repaired but it wasn't the root cause.

2)Both, main and fuel pump relay checked. Their fine...

3)Coolant sensor was also checked, this one is ok as well.

I'm waiting for my injectors to be checked this week.

If posting this here is against rules please close this topic.