A ticking noise, from the engine, only heard when the radio is off/heater fans low/off. At its loudest in top gear at around 1600rpm going uphill.

 

My daily drive is a 2008 (77000 mile) Chrysler 300c SRT common rail diesel

 

A ticking noise, from the engine, only heard when the radio is off/heater fans low/off. At its loudest in top gear at around 1600rpm going uphill.

 

The ticking noise can be heard a lot louder when engine is cold and quietens off when the engine warms, can be heard in all gears but as I say loudest in top gear under load.

 

Today I got the car in top gear at 1600rpm going uphill listening to the ticking noise, I then, without getting it to change gear applyed more pressure to the accelerator, engine noise deepened (under even more load) and ticking got slightly louder but at the same frequency as the revs stayed the same (even though I accelerated more; the revs stayed the same - can only assume the torque converter helps me to do this).

 

What are your thoughts guys?

 

Dan

Does it take a few turns to start frim cold? Any smoke?

No, it starts fine and no smoke at all, not from start up or even hard acceleration

most durvs have tap/knock around the 1500>1800rpm this would be normal can be a little louder when cold to

 

just check in the mornings when you start it for Smell of diesel and white smoke ... if so u may have an injector failing but at 77k shouldn't be most start to fail around the 100k ...

Cheers guys, was also thinking could it be a sticky lifter? But this would be audible throughout the revs and not just under load, correct? Also, was thinking maybe a leaking exhaust gasket maybe?

my 2003 transit has exactly the same as what you're describing. and i know it the dual mass fly.

my 2003 transit has exactly the same as what you're describing. and i know it the dual mass fly.

 

DMF is a kinda different sound really more rattly on tick over or you get a clunking sound when starting and switching off and in some extream ware shaking around the 1800rpm

Cheers guys, was also thinking could it be a sticky lifter? But this would be audible throughout the revs and not just under load, correct? Also, was thinking maybe a leaking exhaust gasket maybe?

 

Sounds like Diesel knock,quite normal.Our Mk5 Transit 2.4's are terrible for it!

If it gets worse,have the injectors checked,could be one dribbling.