Originally Posted by phoenixhaj
Hi, can anyone advise me. I have a Ka (Zetec Climate) bought new on 29th June 2007. It has started to make a knocking noise, that occurs on a very regular cycle, when I am stationary or in very slow moving traffic. It tends to start within the first 10 to 20 minutes of my journey, the only thing I can find that stops the sound is if I turn the cold air dial to its maximum setting.
I've taken it in to my dealership but they were unable to help because it refused to make the noise when I was with them. It doesn't happen on every journey.
I bought a new KA Studio ( no air con ) back in July.
About a month later I noticed a quiet thud coming from the engine compartment when I start the engine from cold. The thud repeats about every 5 seconds or so and then disappears when I drive off.
On one occassion I have heard the noise when I parked the vehicle after a 30 mile run and left the engine running.
I don't know if this is the same noise as you are refering to in your post phoenixhaj.
I'd be interested to know if anyone else has experienced this noise and if they know what it is.
I'm more curious than concerned because when I hear the noise there is no noticeable effect on the vehicles performance or any of the electrical systems.
For all I know the noise could be a normal part of the vehicles operation.
Any ideas anyone ??????