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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sat May 07, 2016 14:54 Post subject: my Isuzu wont start |
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Hi, i have an 98 Isuzu citation 3 liter turbo diesel.
we was driving down the road perfectly fine and it was if someone turned the key off, managed to coast off the road
then tried starting it turned it over but didn't start so i primed the filter but no air it had plenty of fuel coming out after 15mins of turning
it over it started it got us home then tried it next day but still it didn't fire up again.
we have changed all the filters someone said try the crankshaft sensor that was fine
been turning it over for the past week and today it started perfect for 10 mins it ticked over and just cut out again just like before.
can anyone help please?????? |
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Posted: Sat May 07, 2016 14:54 Post subject: Google Ads keep this community free to join! |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sat May 07, 2016 16:18 Post subject: |
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could be orps they usually cause cutting out when slowing down though and can cause bad starting or a complete non start or it could be the orcv they will cut out whenever it wants and won't start. has it had any other symptoms like hunting or no throttle when started? |
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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sat May 07, 2016 16:50 Post subject: |
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Thanks for answering, But no the throttle is fine and the oil pressure runs at 85 and only changes with the revs |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sat May 07, 2016 17:00 Post subject: |
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injectors run off of a different oil pressure, the one on the dash is for lubrication only it won't give you any indication if the injection oil pressure is wrong, |
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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sat May 07, 2016 17:23 Post subject: |
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Ive just done the white wire test and it started so turned it off rejoined
them and it started straight away again |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sat May 07, 2016 18:00 Post subject: |
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try it again tomorrow if it doesn't start with them rejoined then disconnect it and try again if it starts you need a sensor |
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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sat May 07, 2016 18:07 Post subject: |
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Where will i find the sensor? |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sat May 07, 2016 18:19 Post subject: |
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under the rocker cover between injectors 2 and 3 |
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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sat May 07, 2016 18:38 Post subject: |
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Thanks very much for your help i'll give that a try in the morning. |
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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sun May 08, 2016 10:21 Post subject: |
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Ive had a look and i have 2 sensors side by side which one is the oil pressure sensor?
1 is brass the other is silver colour looks like i'll need to take the oil rack off to get to them. |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sun May 08, 2016 10:54 Post subject: |
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the round one is the orps nearer the front of the engine the other is a temp sensor, if you grind down a 14mm spanner you can do it without disturbing the injectors and the rail |
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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sun May 08, 2016 11:34 Post subject: |
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is there any way of testing it now its out? |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sun May 08, 2016 12:14 Post subject: |
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no, but on tech2 you can see its data and sometimes you can tell from that so put a new one in but try to get someone to zero it in on tech2 so it runs at its optimum |
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Natalie *
Joined: 07 May 2016 Posts: 16 Location: kent
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Posted: Sun May 08, 2016 12:41 Post subject: |
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Is a tech2 what u plug into the 16 pin plug that tells u the diagnostics? |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sun May 08, 2016 12:46 Post subject: |
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yes and just about the only thing that will read it |
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