When I press my window switch or head light my oil pressure gauges drops then go back up ? Boost gauge fine thou
Is this and earth fault ?
Any one one the the main earth points are
Gear box Fuse box ? Thanks
Mick T
Posts : 404 Join date : 2012-08-19
Subject: Re: Electrical fault Fri 29 Aug - 19:03
Could be a charge fault
garyblake
Posts : 3603 Join date : 2011-11-27 Age : 41
Subject: Re: Electrical fault Fri 29 Aug - 19:04
Soz mate don't under stand
Mick T
Posts : 404 Join date : 2012-08-19
Subject: Re: Electrical fault Fri 29 Aug - 19:07
If when you use windows or lights. Then there is a massive draw of voltage/ current from battery. If alt or battery is week then when you use either it's dimming gauges as it can't supply enough voltage.
garyblake
Posts : 3603 Join date : 2011-11-27 Age : 41
Subject: Re: Electrical fault Fri 29 Aug - 19:12
What the voltage a battery should be when engine running and how do you check an alternater ?
Thanks
Mick T
Posts : 404 Join date : 2012-08-19
Subject: Re: Electrical fault Fri 29 Aug - 19:19
With engine running about 13.5 volts. With engine off 12.2 ish. If you have 13 with engine running alt is ok.
Darren classic
Posts : 358 Join date : 2013-06-16 Age : 52 Location : North Shields
Subject: Re: Electrical fault Fri 29 Aug - 20:16
Mate if u need to check voltage pop over and we ll check it no probs
Wagon_Deej
Posts : 28 Join date : 2014-07-23 Location : Newcastle
Subject: Re: Electrical fault Tue 2 Sep - 10:21
If it's only the oil pressure gauge that's affected it's probably an issue with the wiring/earth for that gauge. If there was a drop in the battery/charging voltage then everything would be affected.
A quick test with a multimeter will answer that for sure though.
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