| [GMCnet] Taking the load off of your ignition switch [message #237145] |
Thu, 23 January 2014 10:03  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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In the past I've wanted to reduce the current load on that switch in different vehicles. I've lowered the load from items I''ve add. To the heater blower motor, and starter solenoid. I simply used the heater blower relay from GM cars, and trucks that had A/C units. In the case of the starter solenoid. I believe the solenoid requires around 30 amps. By having the relay carry that load. That load went down to 1 amp. I've also used that relay so I didn't have to run a heavy wire a long distance.
Bob Dunahugh GMCMI Member78 Royale
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| Re: [GMCnet] Taking the load off of your ignition switch [message #237264 is a reply to message #237229] |
Fri, 24 January 2014 09:30  |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
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| WildBill wrote on Thu, 23 January 2014 21:29 |
Chevy start solenoids take a lot of amps and old wiring can present excessive voltage drop so it has been common practice to use a ford starter solenoid close to the starter to energize the gm solenoid. Couple amps. While gm ignition switches have many circuits typically many ignition switches have load ratings of say 20 amps on ignition and say 25 amps for accessory. So one again I bring up the cole herse 24059 continuous duty solenoid to run your accessory buss off. If you run your headlights from a good power source through a couple Bosch type 1 relays, and your headlights will be brighter, headlight and dimmer switch will have less load and last longer.
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You can buy a relay harness for your headlights dirt cheap on Ebay or Amazon. They install in minutes, and like WildBill said, they make your headlights brighter, too. It's one of the best modifications I did to my Jeep Cherokee (which are notorious for having really dim headlights, and headlight switches that melt). The only proviso is that you need to get a harness that has fuses, or install them if it doesn't (many don't come with fuses, and I don't like connecting to the battery without a fuse!).
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
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