Crank Timing Sensor

v6killer · Nov 19, 2012

Meho1969 said: ↑

I have a 2007 VED 12, it is a Volvo engine, so I am assuming that it will turn out to be one of them two sensors, because I have changed and checked just about everything else that I could have changed and checked on it, and like bender indicated I checked last night and this morning again my tach when I tried to start it, IT DOES NOT MOVE... I hope I will get to the bottom of this because I am so not up to spending thousands of $$$$ at Volvo and them trying to figure it out, because they are not even sure themselves what it may be... LOL ... Something like this would only happen to me... .
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Just curious, on your display dashboard, the truck is running, do you get a ECM maintenance required soon flashing on your screen !

Meho1969 · Nov 19, 2012

No my friend, there is nothing on my dashboard. The check Engine ECM has not shown up... I assume you had an idea as to what it could have been if it did show up?

v6killer · Nov 19, 2012

Check the check valve in the water and fuel separator I have seen that block up and won't hold fuel pressure that takes forever for the engine to start.

aunimni · Dec 6, 2016

v6killer said: ↑

Check the check valve in the water and fuel separator I have seen that block up and won't hold fuel pressure that takes forever for the engine to start.
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Meho did you find out what was the problem

v6killer · Dec 6, 2016

aunimni said: ↑

Meho did you find out what was the problem
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Check valve that sits on the valve cover ( driver side ) for the fuel return line tends to stick Open, you will lose prime.

Donrick · Feb 13, 2019

Meho1969 said: ↑

I have a 2007 VED 12, it is a Volvo engine, so I am assuming that it will turn out to be one of them two sensors, because I have changed and checked just about everything else that I could have changed and checked on it, and like bender indicated I checked last night and this morning again my tach when I tried to start it, IT DOES NOT MOVE... I hope I will get to the bottom of this because I am so not up to spending thousands of $$$$ at Volvo and them trying to figure it out, because they are not even sure themselves what it may be... LOL ... Something like this would only happen to me... .
Click to expand...

greasehorn · Feb 10, 2020

id like to see what he did to fix it im having a similar problem on a C-15

Exh · Nov 23, 2020

Meho1969 said: ↑

Yes they have checked everything... All is good which is the reason why we all are so puzzeled on this one... but then again, its a Volvo... it is so wired as to how it acts, when it wants it will cranck as many times as you want it to cranck with no problems, and when it dont want to, it just does not, and you cannot and will not start without me purging and priming it with the prime pump... its driving all of us INSANE... and once its started it runs and drives PREFECT... there is not loss of power, no shacking or acting up, currenctly I am pulling a 40 000 lbs load at 67mph and its acting perfect, the only issue is it actually starting when I turn the key and ignition....
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Exh · Nov 23, 2020

Check air on the fuel filter cab/rings.. you are loosing pressure/ do to air ..

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