So since the winter months the timing chain started to sound a bit "rattley" on startup..
The car on a a cold startup would rattle for a few seconds and then sound fine..
Jan -> Feb -> Mar -> April the startup sound got worse and worse in the mornings... even when the car was warm it would rattle on startup...
Then the response of the car started to annoy me mid March. It felt like the stretchy chain issue was coming back again on only 39k miles (~15 miles on the new chain). When overtaking the car had flat spots and the MPG started to get worse. It didn't pull off the line as well as it should..... or as it used to before.
I also noticed the exhausts were sooting up 'more that usual'.. ie running rich.
Quick visit to the AR dealership 2 weeks ago confirmed a bad/defective Hydraulic Tensioner (even though no fault code stored in ECU memory - I checked myself)
Car was repaired Wednesday. No more rattles from the chain/tensioner, and the car feels alive again. The dealership claimed they did not disconnect the battery, nor plug into the ECU. The flat spots are gone, and the MPG this morning was back up to ~30mpg on open road (up from the recent ~24mpg)...
I wonder if this chain/tensioner setup is a weak point here? Don’t know if I’ve just been unlucky or should the garage have changed the tensioner when they changed the timing chain last year? It looks like they should have. The tensioner was euro360 plus fitting, but luckily it was covered under 4th year warranty. That was a relief.
Just letting ye guys know the rattle on startup some of us have become used to on the 2.2JTS should not be happening, it is fixable and does (in my case) have a definite impact on the cars performance.
I’ll be continuing to change my oil at 9k miles..... no way would I leave it go to 18k, as recommended by my local friendly AR mechanic..
Hopefully that's it now for another long long time. I'd hate to think the chain and tensioner need to be replaced every 25k miles!!
Could you tell me please how many km does your car have?
Also...did the chain was making any unusual noises (before changing)?
The ideea is how can we check for signs of chain wear without dismantling the upper part of the engine...
My cars chain failed around 23k miles (~37,000km)... I didn't notice any noise at the time... there might have been a startup rattle, but nothing loud.. the only symtoms were performance related... also towards the end I was getting P0016 error codes. I don't know how to test for a stretched chain without dismantling..
Best of luck,