Diesel Mazda van occasionally won't start? Then it'll be fine after I eventually...

highly_strrung

New member
...get it going! Any ideas? Hey,

I have a Mazda E2200 diesel van. Firstly let me say that it doesn't have the original engine and actually has a 2005 2.0 turbo from a mazda 5 i believe (if this makes a difference) and not the 2.2 naturally aspirated diesel.

The van has been treated real bad by previous owners, subsequently the rings are worn but I have been very lucky as hardly any power has been lost and she still goes exceptionally well.

The van has had a full service with the exception of a timing belt - new plugs, filters, oil etc.

Now for some reason on rare occasions she won't start. She'll turn like she wants to but won't actually start. Once I role start her and get her going she'll be fine again after??! Sometimes even straight after i've been driving her for say 20 mins. I'll go to start it again a minute later and she won't have any of it.
I think (this may not be accurate) one time I left her for an hour or so then came back to her and she started ok again.

In the last month I think she's developed a crack in the manifold as when I go to start her she puffs out of the engine somewhere (between the turbo and the engine- although pretty sure not from the turbo itself) with exhaust fumes (it's not pushing out madly- just a casual cloud of smoke that hovers) until she's started properly then I guess the pressure of the engine is taking the fumes to the exhaust and it isn't anywhere near as bad. So not surer if this may have something to do with it? Or even the rings? But remember it is only occasionaly. For instance until last night it hadn't done it for about a week. Come to think of it that was after a long run to, then I jumped straight back in to move it and it didn't go.

Could it be that trying to turn her straight back on after a run is affecting it in some way?

Any thoughts on this would be fantastic.

Kindest regards!
 
Diesels rely heavily on compression.
If there's no compression there can be no start.
Diesels ignites under extreme compression like begin smashed with the piston and injected under very high pressure 21000 psi .
you could also have a look at the injectors,does it blow white smoke on start up?
 
Diesels rely heavily on compression.
If there's no compression there can be no start.
Diesels ignites under extreme compression like begin smashed with the piston and injected under very high pressure 21000 psi .
you could also have a look at the injectors,does it blow white smoke on start up?
 
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