will not rev

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yeoman1
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will not rev

Tue Mar 31, 2020 5:53 pm

Hi
I have a 2007 3.0d it has had in the last two months a new dpf and the sensors both before and after. It runs fine until it gets to 3500 revs and then goes flat, any ideas?
Many thanks in advance.
XK8
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Re: will not rev

Wed Apr 01, 2020 12:42 am

Hi, I had a similar problem, but at lower revs2000-2500. It turned out to be a vacuum hose. It drove to turbo actuator.
BTW, I have a 3.0sd. Worth taking off the engine cover and checking through the lines.

Regards.
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Alan Gunn
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Re: will not rev

Wed Apr 01, 2020 7:00 am

As said check all the vacuum hoses as they are more than likely the original ones and the ends split.
Easy enough job to do yourself but just change one at a time save forgetting where they went.
mr angry
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Re: will not rev

Wed Apr 01, 2020 2:20 pm

Also if replacing them use a sharp knife to slit them length ways before you attempt to remove them as the plastic receivers snap off the valves very easily if you try to twist them off.
Leslie
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Re: will not rev

Wed Apr 01, 2020 4:36 pm

Are the exhaust tail pipes clean now ? as if its still not regening it may be blocking up again .
yeoman1
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Re: will not rev

Thu May 14, 2020 1:45 pm

All sorted front heat sensor was not working due to a broken wire, forced regeneration now goes like a Honey bear on steroids'. One last problem cannot turn on front passenger air bag. You can put key in socket in glove box and turn on as many times as you like but it will not activate the airbag, any idea's?
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X5Sport
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Re: will not rev

Thu May 14, 2020 1:57 pm

It should only take a 1/4 turn. Has it been permanently coded out as might happen if a child seat was used? There was a coding option to do that and it ignores the switch. If not then perhaps the switch is busted.
:ant: Never anthropomorphise computers. They hate that.

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