4D56 Hard start issues

[jkennedy]

Hi All.

Every morning, the first start of the day my yr2000 L300 turbodiesel 4D56 takes about 4 - 6 tried to fully turn over. However this only happens once, at the beginning of the day. Each time I start my engine after I have zero issues and turn over on the first try, even if this is hours later.

I thought my fuel pressure was wonky so I just bled the fuel pump, hoping to remove any trapped air, but the issue still exists.

Anyone else have hard start issues or insight?

Thanks in advance !

 

[Helibrian]

Could be loosing prime or it’s your glow plugs. How cold is it in the morning?

 

[sck_nogas]

Are your glow plugs working? I'd run through this checklist

 

[Growlerbearnz]

^What they say, though @Helibrian has a point about the Injection Pump losing its prime. As a quick diagnostic, try pumping the fuel filter primer pump a few times (until it goes stiff). If that makes it start first go then you're definitely losing fuel from the injection pump.

Take the top timing belt cover off and check behind the IP for signs that diesel is leaking out the IP shaft seal. If the IP sprocket or engine are wet with diesel, you've found the culprit.

 

[jkennedy]

Are your glow plugs working? I'd run through this checklist

Wow - fantastic resource, thank you so much! I'll be going through this hopefully today !

 

[jkennedy]

Could be loosing prime or it’s your glow plugs. How cold is it in the morning?

I live in Iceland, so fairly cold, but not near freezing yet.

 

[Helibrian]

I live in Iceland, so fairly cold, but not near freezing yet.

I would bet you need some glow plugs. Get the expensive ones!

 

[Growlerbearnz]

I live in Iceland, so fairly cold, but not near freezing yet.

Whoops, I missed that part. Your summer is about the same as Japan's winter.
You're going to need genuine Mitsubishi glow plugs, and you're going to want them to work. Really well.

 

[Not_Todd]

Are your glow plugs working? I'd run through this checklist

Any chance the checklist still exists somewhere? The link appears to be broken

 

[sk66]

Any chance the checklist still exists somewhere? The link appears to be broken

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