.5 volt drop when in reverse - why and anyone else ?
Thread Starter
Burning Brakes
Joined: Dec 2002
Posts: 1,199
Likes: 4
From: Cairns Australia
.5 volt drop when in reverse - why and anyone else ?
Another forum member told me his car loses 1/2 a volt when in reverse. I jokingly said I'd check mine to see if it was 'normal' -
I just checked and mine loses .5 volt too !!!!
Anyone else have this happen and does anyone know why ?
Here's my test procedure -
Cold start -RPM 1100- volts 13.8/13.9
Shift into reverse. Raise RPM back to 11000 – Volts 13.3/13.4
S'nut
I just checked and mine loses .5 volt too !!!!
Anyone else have this happen and does anyone know why ?
Here's my test procedure -
Cold start -RPM 1100- volts 13.8/13.9
Shift into reverse. Raise RPM back to 11000 – Volts 13.3/13.4
S'nut
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Re: .5 volt drop when in reverse - why and anyone else ? (Stingraynut)
Pull the stop/haz fuse and try it again. If you don't see 0.5 volt drop, the cause is due to voltage drop from the stoplight current through the ign sw. The dash voltmeter measures the voltage after the ign sw and thus includes any voltage drop from current through the ign sw.
Thread Starter
Burning Brakes
Joined: Dec 2002
Posts: 1,199
Likes: 4
From: Cairns Australia
Re: .5 volt drop when in reverse - why and anyone else ? (jfb)
Thanks jfb,
it seems a really strange thing. I'll do the fuse check tomorrow.
Judging from your reply, I suppose it's normal, but I wonder if our vette's did it from new or is there now more resistanec in the complex circuitry caused by having a f'glass body.
Anyone else have some theories etc ?
S'nut
it seems a really strange thing. I'll do the fuse check tomorrow.
Judging from your reply, I suppose it's normal, but I wonder if our vette's did it from new or is there now more resistanec in the complex circuitry caused by having a f'glass body.
Anyone else have some theories etc ?
S'nut
Drifting
Joined: Dec 2002
Posts: 1,474
Likes: 4
From: Tracy CA
Re: .5 volt drop when in reverse - why and anyone else ? (Stingraynut)
my voltage goes up and down at idle with the blinkers on... It just seems slow to react to load changes...
Other than that - I dunno!
Other than that - I dunno!
