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Model specific boards => Golf mk3 => Topic started by: leigh_harty on 27 October 2012, 10:42

Title: Buzzy fuel pump relay
Post by: leigh_harty on 27 October 2012, 10:42

What causes the fuel pump relay to buzz?

Car sometimes starts 1st time... sometimes it just buzzes when cranking over.. sometimes relay does nothing whilst cranking (thus not starting at all)

Ive already replaced the relay for a genuine new one and all that did was buzz louder  :grin:

Should i check for earth issues?

Title: Re: Buzzy fuel pump relay
Post by: thai-wronghorse on 27 October 2012, 17:11

I thought it was the pump that buzzed when powered up, not the relay?

Title: Re: Buzzy fuel pump relay
Post by: leigh_harty on 27 October 2012, 18:16

No it's defiantly the relay. Put my finger on it and crank it and you can tell.... and hear.

Now it doesn't even buzz... so no priming the pump

Title: Re: Buzzy fuel pump relay
Post by: Stewy12 on 31 October 2012, 07:05

If your not priming check fuse 18 if it keeps blowing let us now ... or have a read
http://mk3golfowners.co.uk/forum/viewtopic.php?f=16&t=98

Title: Re: Buzzy fuel pump relay
Post by: leigh_harty on 31 October 2012, 09:55

Quote from: Stewy12 on 31 October 2012, 07:05

If your not priming check fuse 18 if it keeps blowing let us now ... or have a read
http://mk3golfowners.co.uk/forum/viewtopic.php?f=16&t=98

Thanks, ill have a look at that when I get a minute... stuck on jury duty  :sad:

Fuse 18 is good. Its an intermittent problem. Fired up fine this morning