Author Topic: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?  (Read 1044 times)

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Offline meltdown

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Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
« on: September 29, 2016, 04:52:01 PM »
Hi Guys,

Can stock 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?

Thanks!
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Offline Aus78Formula

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Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
« Reply #1 on: September 29, 2016, 04:57:31 PM »
It can handle it but you'll need to rotate the wiring on the plug as the lighting is different.

Offline meltdown

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Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
« Reply #2 on: September 29, 2016, 06:48:01 PM »
Thanks!

That was my next question!
Is this diagram correct?


Thanks again...
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Offline Aus78Formula

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Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
« Reply #3 on: September 29, 2016, 07:43:51 PM »
That's the one, doesn't hurt to double check.

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Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
« Reply #4 on: September 29, 2016, 09:10:20 PM »
Agreed!

Thanks again
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Offline meltdown

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Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
« Reply #5 on: October 02, 2016, 03:59:40 PM »
Hey Aus78Formula,

I need to pick your brain again if you dont mind....

I did the pin swap on the 2 outside light plugs as shown on the diagram..BUT....

I am having a problem where BOTH passenger side headlights are on ALL the time when the headlight switch is pulled (hi-beam & lo-beam stay on no matter what)

Also, on the drivers side, the 'main' headlight (not the hi-beam) is dim & turns OFF when the hi-beam switch is turned on.

Lastly, the hi-beam on the drivers side NEVER turns on.

Any ideas??
What the heck am I missing?

(Just a note, but all lights worked fine before I decided to upgrade to 9003 bulbs)

Thanks!

***UPDATE!! SOLVED: PROBLEM WAS BACK GROUNDING WIRE ON DRIVERS SIDE 'MAIN' LAMP!!**
« Last Edit: October 02, 2016, 04:08:26 PM by meltdown »
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