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Home > Technical > what happens at 1800/2100 revs? |
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fisha Member Since: 28 Aug 2012 Location: Scotland Posts: 299 |
Throttle body? There are more and more threads appearing where the throttle body appears to be failing in some form or another.
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10th Oct 2014 8:30 am |
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Offshore1987 Member Since: 11 May 2014 Location: Hampshire Posts: 496 |
Thanks for the comment
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10th Oct 2014 11:10 am |
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fisha Member Since: 28 Aug 2012 Location: Scotland Posts: 299 |
Odd that it is only from cold. I mentioned throttle body cause mine seemed physically ok,, but just didn't work properly (possibly bad position sensor in it). I get the feeling that it does quite a lot of work and feathers the in coming air to balance against egr recycling air and what not . . . I.e it's not necessarily responding solely to throttle pedal position ( could be wrong though on that ).
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10th Oct 2014 10:18 pm |
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Offshore1987 Member Since: 11 May 2014 Location: Hampshire Posts: 496 |
Thanks again for the comment
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11th Oct 2014 12:36 pm |
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fisha Member Since: 28 Aug 2012 Location: Scotland Posts: 299 |
Interesting. My initial thoughts are that there is some issue with temperature related fuelling.
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11th Oct 2014 1:34 pm |
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EYorkshire Member Since: 18 Nov 2010 Location: (!) Posts: 4392 |
Variable vanes on the turbo stiff/sticking maybe |
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11th Oct 2014 2:01 pm |
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fisha Member Since: 28 Aug 2012 Location: Scotland Posts: 299 |
That thought had crossed my mind as well, but if i recall from experience of my turbo vane controller going kaput, it showed an engine management light right from the outset of turning on the ignition and completing its system checks at start up. Variable vane position being wrong I don't see making a difference to the engine enough that it would stutter as bad as being described here. Sure, it might mean it could dip its airflow and affect power or turbo spool up, but to make the engine cough, I would be surprised ( could be wrong though )
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11th Oct 2014 2:24 pm |
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Offshore1987 Member Since: 11 May 2014 Location: Hampshire Posts: 496 |
Fisha today I started the truck on tick over only and let it idle until upto full running temp with no throttle input at all
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11th Oct 2014 7:14 pm |
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alex_pescaru Member Since: 12 Mar 2009 Location: RO Posts: 4642 |
Did you put the injectors back in the same places? Inj1 to Cyl1, 2-2, 3-3, 4-4?
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11th Oct 2014 7:45 pm |
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Offshore1987 Member Since: 11 May 2014 Location: Hampshire Posts: 496 |
""Did you put the injectors back in the same places? Inj1 to Cyl1, 2-2, 3-3, 4-4?
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12th Oct 2014 11:46 am |
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Offshore1987 Member Since: 11 May 2014 Location: Hampshire Posts: 496 |
Todays update
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14th Oct 2014 11:48 am |
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fisha Member Since: 28 Aug 2012 Location: Scotland Posts: 299 |
Well that certainly needs addressing. As you say it reads as though you are drawing in air.
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14th Oct 2014 3:59 pm |
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alex_pescaru Member Since: 12 Mar 2009 Location: RO Posts: 4642 |
Bubbles on mine too, especially when the RPM drops from the high range, but no problems.
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14th Oct 2014 4:48 pm |
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Offshore1987 Member Since: 11 May 2014 Location: Hampshire Posts: 496 |
Hi guys thanks for the replys again
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14th Oct 2014 10:00 pm |
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