Originally posted by kiwiford:
... Had a good tip recently though - blocked cat - initial thoughts are that the exhaust flow is restricted when I compare it to another car - is this a common fault with this car?? Cheers
Often for the Duratec at 7 years or so. Not as often for the Zetec.
Edit. Zetec test for blocked (plugged) exhaust.
For the Zetec.
A good cheap way to test for a blocked exhaust is to remove the upper O2 sensor, and see if the performance improves. Battery needs to be disconnected before uninstalling and installing O2 sensor. Good luck.
Last edited by Tony2005; 01/19/06 03:07 PM.
