09 CM871 ticking and surging at cold start

[09KWW900]

At a cold start my 09 CM871 has started making a ticking sound, followed by a slight rough idle with some slight surging or lurching with the tick. Once it warms up everything is fine, no performance issues at all. Is anybody familiar with this and can pinpoint the issue? I have a video of it making the sound but can't seem to upload it here. Any info would be greatly appreciated.

[Rawze]

Make sure there is no air getting into your fuel system.. after that ...

DO an overhead valve adjustment and an injector leak test.
leak test...
ref: http://rawze.com/forums/showthread.php?t...8#pid67948


... followed by inspecting fueling and metering the actuators.
Checking your Metering and Fueling Actuators...
ref: http://rawze.com/forums/showthread.php?t...619#pid619

[09KWW900]

(03-11-2024 )Rawze Wrote:  Make sure there is no air getting into your fuel system.. after that ...

DO an overhead valve adjustment and an injector leak test.
leak test...
ref: http://rawze.com/forums/showthread.php?t...8#pid67948


... followed by inspecting fueling and metering the actuators.
Checking your Metering and Fueling Actuators...
ref: http://rawze.com/forums/showthread.php?t...619#pid619

Thanks, I'll check that. I did recently change the water/fuel seperator filter. Part of me also has me wondering about the compressor as things smooth out once the air is built up.