1971 hot a/c wire from starter
Thread Starter
Instructor
Joined: Oct 2005
Posts: 145
Likes: 0
From: round rock tx
1971 hot a/c wire from starter
My battery is still draining. I am counting amp's by connecting the multi-meter from the positive post to the positive cable.
I am drawing 1/2 amp.
I disconnected the red wire from the horn relay by taking out the fuse. This wire makes the high blower work on a/c cars.
After disconnecting that wire I am drawing 1/4 amp.
QUESTION 1: How long will it take to drain the battery under the 1/2 amp draw and under the 1/4 amp draw.
QESTION 2: The a/c relay under the hood clicks whenever I remove or connect the battery cable. Could this relay be stuck in some mode to draw current?
Thanks,
Larry
I am drawing 1/2 amp.
I disconnected the red wire from the horn relay by taking out the fuse. This wire makes the high blower work on a/c cars.
After disconnecting that wire I am drawing 1/4 amp.
QUESTION 1: How long will it take to drain the battery under the 1/2 amp draw and under the 1/4 amp draw.
QESTION 2: The a/c relay under the hood clicks whenever I remove or connect the battery cable. Could this relay be stuck in some mode to draw current?
Thanks,
Larry
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
The relay isn't stuck. whatever turns it on probly is tho. Don't know how long it will take to drain the batt, but keep looking, there is something else on that shouldn't be. You should get to under 200ma with everything off but connected. Check the ctsy light timer behind the pass side dash if equipped, it seems to give a lot of trouble
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
If you really want to find the leak, take out all the fuses. Your draw should be zero (or in the milliamp range). Start replacing them. When your draw is not zero, that's the bad circuit.
Do you have a light bulb on in the boxes behind the seats? Often times this is overlooked.
Do you have a light bulb on in the boxes behind the seats? Often times this is overlooked.
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
The clicking you hear is probablty the horn relay. The a/c is fed from the a/c / heater fuse. The horn relay is mounted on the left fenderwell. Unplug the connector with the black and green wires on the horn relay and check the draw again. P.S. The a/c blower relay is on the evaporator housing.
