Date: Sun, 06 Nov 2005 21:30:14 GMT From: Paul Halliday <pjghnospamyonder.co.uk> Subject: Re: Ticking/Spark noise C900
in article VSsbf.8510$EE2.7578nospamnews.blueyonder.co.uk, Al at alistairdorenospamo.com wrote on 06/11/2005 19:32: > When I have the bonnet (hood) open I can hear a loud noise like a spark from > around the inlet manifold area. Any clues anyone? Injector, knock sensor? > > About 4 per second? Increases with engine revs. > > 1987 C900 T16 Aero From the intake? Hmmm ... If it was from the exhaust side, I'd say you had the usual manifold crack between cylinders 2&3. That makes a kind of spitting noise. I'm not *that* clued up on the B202, but I have heard about the charcoal canister ticking away ... I think that's maybe that's a non-UK thing, though. If you suspect the knock sensor, that would point to the APC solenoid valve on top of the radiator. A bad spark plug connection can get that thing chattering. Likewise, if your brake pedal (or cruise) has gone 'hair-trigger', that can set it off chattering, too. Have another listen and see if you can pin-point the exact location in the engine bay. Paul Vart tog v”gen v”gen? SAAB : Nothing on earth comes close
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