Ray1965 10 Posted July 23, 2014 Guys, put key in key car to start up, heard a faint buzzing sound turned key, the engine was just turning over but not firing (i know its not the immobiliser as that lets the motor start briefly and then cuts off). Sound was there all the time. Turned ignition off and pulled key. Put back in and the engine started fine no problems. Hmmm Quote Share this post Link to post Share on other sites
spanneredmonkey 0 Posted July 23, 2014 relay 109? the buzzing could be chatter of a failing relay, if not that one then one of the fuel pump relays Quote Share this post Link to post Share on other sites
joebloggsVR69 0 Posted July 23, 2014 Auxiluary water pump? That makes a buzzing noise when you put the key in Quote Share this post Link to post Share on other sites
Ray1965 10 Posted July 23, 2014 (edited) Auxiluary water pump? That makes a buzzing noise when you put the key in Correct, but does the pump only buzz / whirring for a short time this is constantly on, (with engine not started btw)until you turn the ignition off. No not relay's i hate em. I'm no trician. Edited July 23, 2014 by Ray1965 Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted July 23, 2014 Sorry, couldn't resist :lol: Seriously though, we need establish your definition of 'buzzing'. I've heard relays clicking rapidly in the scenario you describe as spannerdmonkey said. That to me is a buzz. Things that 'hum' (quietly) when you turn the key are the fuel pump and aux water pump, but only the fuel pump would stop the car from starting if it was bad. Quote Share this post Link to post Share on other sites
Ray1965 10 Posted July 24, 2014 Sorry, couldn't resist :lol: Seriously though, we need establish your definition of 'buzzing'. I've heard relays clicking rapidly in the scenario you describe as spannerdmonkey said. That to me is a buzz. Things that 'hum' (quietly) when you turn the key are the fuel pump and aux water pump, but only the fuel pump would stop the car from starting if it was bad. Gotta laugh at the pics Kev. :thumbleft: How long did it take you to google a pic of a shed and a torch? lol. Yes it more like a hum tbh..Whats got me it does not do it every time i go to start it. Hope i haven't got a big money fix on my hands. GULP. Quote Share this post Link to post Share on other sites
seanl82 23 Posted July 24, 2014 Duff battery. Quote Share this post Link to post Share on other sites
Ray1965 10 Posted July 24, 2014 Duff battery. battery on car is ok, don't know about the torch. Quote Share this post Link to post Share on other sites
Ray1965 10 Posted July 24, 2014 Quick update, today i have tracked the noise down to the fuel pump (on tank). When it hums it does not start? strange i thought its got to hum to pump fuel? Unless its a relay in there going belly up, dunno will have to investigate further. Quote Share this post Link to post Share on other sites
davidwort 0 Posted July 24, 2014 (edited) You won't hear the pump buzz if you are in the car unless it is old and noisy when it is running, sounds like you have a problem on the ecu/ignition side Do you have a recent ignition switch and fuel pump relay? do you know if the starter/solenoid are good? Edited July 24, 2014 by davidwort Quote Share this post Link to post Share on other sites
