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96 850 GLT .45A Parasitic Draw??

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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andyleonard
Posts: 49
Joined: 12 January 2009
Year and Model: 1997 850 GLT, 2005 X
Location: 90290

96 850 GLT .45A Parasitic Draw??

Post by andyleonard »

Hi, We've been using a battery disconnect since we bought this car 3 years ago for my son, as in 3-4 days the battery will get too low to start the car. Driven everyday it's fine.
Today we went after the parasitic draw and are getting .45A..not milliamps... even with all the smaller red wires removed from the positive terminal. So whatever it is is feeding off the fat red wire that disappears under the engine.
Battery is good and at 12.8V. Charging is good.
Can anyone guess what's doing this? I *could* start tearing the car apart but ..is this common? Is it the diodes in the alt?
Big Thanks,

Andy

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