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Author Topic: 2.5td manual engine cuts out totally at random  (Read 922 times)

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andyxj40

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2.5td manual engine cuts out totally at random
« on: 25 September 2016, 16:46:14 »

My french registered 2001 2.5td manual has started cutting out completely at random when im driving. It happens maybe 1 day then its ok for a few days. It is normally when im on a trailing throttle. She starts inmediately then runs fine.
Im concerned as losing the p.a.s suddenly is a real shock. Has anyone any ideas what this might be.
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TheBoy

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Re: 2.5td manual engine cuts out totally at random
« Reply #1 on: 25 September 2016, 19:27:11 »

Is it the 12v or 24v unit.  As if the 12v lump, can't think of anything that could cause that.

The 24v, Y25DT common rail engine we didn't get in the UK, is a lot more complex, probably would need code reader plugged in to see what its complaining about.
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andyxj40

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Re: 2.5td manual engine cuts out totally at random
« Reply #2 on: 26 September 2016, 12:57:34 »

Many thanks anyway. Theres only 2 things ive done recently before the problem started,  that is to replace the MAF sensor and EGR valve. What may be significant is that there was a 2nd pipe on the old egr valve that seemeg to go nowhere. We thought it was just a drain so we left it hanging. When we bought the second car a mark 1 Omega we saw that the same pipe was attached to something near the bulkhead so we did the same with this car. I think ill disconnect the pipe sgain and see what that does.
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