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5th December 2019, 20:02 | #1 |
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Rover 75 Facelift 54 plate saloon Join Date: Feb 2016
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Cdti engine vibration on tickover?
Just replaced the rear engine mount that was shot but engine vibration at tickover is worse!
Small touch of accelerator smooths this out. Can the idle speed be increased on 75 cdti (54 plate)? Any useful ideas? |
5th December 2019, 22:43 | #2 |
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Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
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Yes you can increase or decrease the idle revs using T4, and also you can balance the injectors at idle to improve smoothness, which might also be useful for you.
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5th December 2019, 22:58 | #3 | |
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75 CDT Auto Tourer , Rover 45 , Astra, Zaffira, Chev Captiva Join Date: Mar 2011
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Quote:
A steering damper also made a difference to mine (Behind the airbag)
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6th December 2019, 23:03 | #4 |
Regular poster
Rover 75 Facelift 54 plate saloon Join Date: Feb 2016
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How does one balance the injectors?
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7th December 2019, 00:01 | #5 |
This is my second home
Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009
Location: Hampshire
Posts: 11,531
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It is an option on the T4 diagnostic. At idle the ECM knows the acceleration of the crankshaft as each injector fires from the crank sensor input.
It can then adjust the injector timing to balance the acceleration from each individual power stroke to help the engine idle more smoothly. |
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