Running rough and loud

[ScottyVE]

Was wondering if anyone has any ideas, 2009 VE SV6 is running loud and rough. Took it to a mechanic who said it was the fuel solenoid valve (not so sure it is), was making a ticking sound and when taking foot off the accelerator it makes a loud fan/ winding down sound and is burning about 16-18L per 100k (was sitting on about 12). Almost sounds like an old diesel if that makes any sense. Anyone have any ideas? Cheers

 

[scozz76]

Has your timing chain ever been replaced?

 

[ScottyVE]

Nope don't think so. It's done about 70,000k would this be too soon for the timing belt to have issues?

 

[ScottyVE]

Nope don't think so. It's done about 70,000k would this be too soon for the timing belt to have issues?

 

[ScottyVE]

Nope don't think so. It's done about 70,000k would this be too soon for the timing belt to have issues?

 

[ScottyVE]

Sorry dunno why it posted so many times

 

[Brettly-2008]

These motors have timing chains, not belts and certain models (06-07 are notorious but plenty of later models seem prone too) that were fitted with the slimmer, lighter chains, stretch and cause all sorts of problems. Are you getting any check engine errors? Unfortunately it's not a cheap fix.

 

[ScottyVE]

Na no engine check errors and the mechanic plugged the computer in and it didn't spit out any error codes. After replacing the fuel solenoid value it's a little better but not totally (does it more randomly now and more when warmer), took it to holden and as soon as I parked there it stopped haha typical!!

 

[RiCeY]

The purge valves are supposed to tick sometimes but are known to fail and cause a vacuum leak resulting in high fuel trims and poor economy.