ward257 Posted February 20, 2021 Share Posted February 20, 2021 Hello, Please can someone help? I have a drain on my battery. My car fails to start on a morning. I have noticed a humming noise in the engine bay well over 1 hour after switching the engine off and locking. The humming noise is coming from where the Fuel pressure control is. If I remove fuse 23 (Relay coils, light switch control) the noise goes off. I have left fuse 23 out over night, replaced in the morning and the engine starts o.k. Any help would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
m50e30 Posted February 20, 2021 Share Posted February 20, 2021 Change the light switch Quote Link to comment Share on other sites More sharing options...
ward257 Posted February 21, 2021 Author Share Posted February 21, 2021 Can you explain your theory behind that please? Quote Link to comment Share on other sites More sharing options...
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