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97 silverado high & low beams at same time


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truck man 
Member - Posts: 8
Member spacespace
Joined: February 05, 2003
Location: United States
Posted: January 15, 2004 at 10:48 PM / IP Logged  
I have a 97 silverado and I am wanting both high and low beams on when switched to high beams I know that there is some kind of relay that can be purched for around $20.00 but can prob. do it myself Does anyone know what I need and the wiring diag. for this?
RufNUSD 
Copper - Posts: 184
Copper spacespace
Joined: December 10, 2002
Location: United States
Posted: January 16, 2004 at 12:27 AM / IP Logged  
Not to discourage you from this but... I think there is a reason not to do this. HEAT! High amperage! Tremendously could decrease bulb life.
Usually HLs have 3 wires. Hi-lo-ground. Determine which is which. Once you identify take a relay and do the following.
86 hi
85 ground
30 fused 12v
87 lo beam
87a n/a
Do this for each bulb. Voila.
Someone pass me that bottle.
geepherder 
Platinum - Posts: 3,668
Platinum spaceThis member consistently provides reliable informationspace
Joined: October 27, 2003
Posted: January 16, 2004 at 10:48 AM / IP Logged  
RufNUSD brings up a good point- heat is definitely a consideration.  I know some trucks came with sealed beams and others came with composite headlights.  Which do you have?  If you have the sealed beams, this is not a good idea, but if you have the composite headlighs with replacable bulbs, give it a go.  Just hook it up how RufNUSD said.
Steveo_supremo 
Member - Posts: 34
Member spacespace
Joined: September 23, 2003
Location: Canada
Posted: January 16, 2004 at 9:39 PM / IP Logged  

I have done this, works great, you only have to do it on one side, doesn't matter which, and both sides will light up.

truck man 
Member - Posts: 8
Member spacespace
Joined: February 05, 2003
Location: United States
Posted: January 17, 2004 at 7:00 PM / IP Logged  
Does yours have daytime running lights also what kind of vehicle did you do this on?

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