Join Date: Aug 2003
Location: Sunny Melbourne, Victoria
Zetec 2.0 engine pinging?
Lately since my 15k service, and after getting that engine mount replaced under warranty, my engine seems to be making a slight pinging noise above about 4000rpm in 1st and second. Haven't tested it in 3rd coz that involves 110km/h plus speeds and i haven't left the burbs in a while... but basically it runs clean and hard all the way to 4000rpm, as you might know the zetec's on song from about 3000rpm but when it should really be screaming it seems to be making a resonance of some sort. Is louder some times than others, not uniform and not guaranteed. Depends on the day but is always present. NOTHING else is wrong with it, so it seems. Just a high rpm problem. Slight power drop, maybe a very slight lack of power up top past 4500rpm, altho that may be me backing off subconsciously or even doncentrating too much on the noise.
Got it checked out by the local dealer and they had no idea, did diagnostic tests etc and couldn't find anything out of place without pulling the whole engine cover off etc and checking the new mount for proper fitment. I have to take it back to the dealer who fixed the engine mount and did the 15k service (Dominelli). It's only something that has developed in the last few hundres kays, wasn't immediate from service as back then it was fantastic. Dominelli are great by the way.
Been doing some research and I am lead to believe it may be pinging, timing is too advanced or perhaps the poil grade is wrong and the valves are playing up (taping maybe?). I have used factory oil, run it on Premium and have never had a backfire or anything, it sounds fine. Gets driven hard a bit, but otherwise it has no signs of any problems. Can anyone help?
2002 Ford Focus Zetec - Machine Silver - 3 door
2 1/4 inch Cat-Back Exhaust, 40mm KW Lowering Springs, K&N Panel Filter, ST170 Indicators, Zetec Floor Mats, Darkest Legal Tint, Genuine 15 Rear Wheel kW FPV Sticker
European Ford Owners Club - Southern Region President
Last edited by Zetec; 10-20-03 at 06:26 AM.