Knocking sound in my 997 - 2007
#16
Initial startup sounds like our 997.1 MT C4, but the rattle that starts a few seconds latter and then goes away before he backs up does not sound normal to me. Not sure why it would take a few seconds to develop the other sound, which then goes away.
#18
Same here - I get a little rattle for a few seconds after I cold start the car. Doesn't happen when car is warm. I've had other cars that are a little noisy when cold starting so I think it's fairly normal.
#19
I get the same. 2006 c4. Just a few seconds of rattling when cold start. Goes away. Never worried about it. Maybe I should?! Will have mechanic check it next time I'm in. Soon car will be tucked away for winter anyway. Always a bummer. Time to move south!
#20
Rattle on cold start is usually timing chain and/or tensioners. I'm not so sure that is what op is hearing. More of a knock than a rattle imo. Wouldn't be too quick to call it normal w/o having it checked out. Better safe....
#21
1o,ooo kms and 1 year since last oil change?
First thing, for me, would be to change the engine oil.
In my truck ---Fresh oil, engine, diff, transfer case. Thing quietens right up.
New engine oil will at least take that out of the option list.
First thing, for me, would be to change the engine oil.
In my truck ---Fresh oil, engine, diff, transfer case. Thing quietens right up.
New engine oil will at least take that out of the option list.
#25
Since it is an easy job to perform, I think I will swap out the tensions soon when I find some time. I will report back with the results.
#27
Originally Posted by byrona8
Reviving old thread.
I just got the same noise.
What did the OP do to resolve this?
Thanks
I just got the same noise.
What did the OP do to resolve this?
Thanks
If ticking noise stays I would leave it for professional check up.