Td4 Hit And Miss When Starting

Dazkim · Nov 24, 2007

Hi all
Well the td4 for the last 2 days has been a pain in the ass. 1 Minuet it will start first time the the next it takes 3 to 5 times . Once running there isent a problem but it makes you look stupid like today stuck in the middle of town and wouldent start then all of a sudden started and all was fine . any suggestions from you good folk would be greatly appresiated.
Cheers Dazkim

Tatooboo · Nov 24, 2007

Have a look at this thread by BLENX first and see if it sounds the same.
Intermittent starting problem
If it is then theres your problem if no
Report back and we can see what else to look at.
Hope this helps.
D

Shutty · Nov 25, 2007

when it wont start does it turn over or is it dead ?

Dazkim · Nov 25, 2007

Shutty said:
when it wont start does it turn over or is it dead ?

Hi yes it turns over as normal but will not fire then you try again and it goes straight away i did notice yesterday that it started when i went to rev it up it just died.

Cheers dazkim

Shutty · Nov 25, 2007

sounds like it may be fuel pump related, Check you can hear the pump when ignition turned on (Mounted to N/SF inner wing/strut), There are 2 pumps though

May be worth checking when fuel filter last replaced aswell

Dazkim · Nov 25, 2007

Shutty said:
sounds like it may be fuel pump related, Check you can hear the pump when ignition turned on (Mounted to N/SF inner wing/strut), There are 2 pumps though

May be worth checking when fuel filter last replaced aswell

Right with a little more time on my hands today i had a play and noticed if i try and start it straight away it wont start but if i turn the ignition on and count to 5 then try it starts first time ... im lost with this one.

Bushtoy · Nov 25, 2007

glow plugs take a while

john t · Nov 25, 2007

ok, i think we can eliminate glowplugs as it has done this when the engine is hot .
there is a pressure sensor on the fuel common rail that the emc needs to know that the pressure is correct, before it will even open the injectors,

sounds like this pressure signal might be missing , several causes possible
1, loose connections
2, fuel filter blocked
3, fuel pumps

as shutty said when was last time you changed filter

ming · Nov 25, 2007

john t said:
ok, i think we can eliminate glowplugs as it has done this when the engine is hot .
there is a pressure sensor on the fuel common rail that the emc needs to know that the pressure is correct, before it will even open the injectors,

sounds like this pressure signal might be missing , several causes possible
1, loose connections
2, fuel filter blocked
3, fuel pumps

as shutty said when was last time you changed filter

i agree wiff johnny. . . .but after fuel filter the rear pump in tank is favourite. . . .check fuel pump relay first ,it controls both pumps [front un rear] with ing on ,hold front pump wiff yer hand should vibrate fer bout 12secs then stop [pump prime time out] if it don't do this then check relay and fuse, if it doe's do it ,then come back ,un will take you down down deeper un down [titter]

Td4 Hit And Miss When Starting

Dazkim

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Tatooboo

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Shutty

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Dazkim

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Shutty

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Dazkim

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Bushtoy

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john t

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ming

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