Hitman's Pontiac Trans Am Forum

Trans Am Information => Aftermarket Questions => Topic started by: meltdown on September 29, 2016, 04:52:01 PM

Title: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
Post by: meltdown on September 29, 2016, 04:52:01 PM

Hi Guys,

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

Thanks!

Title: Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
Post by: Wallington 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.

Title: Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
Post by: meltdown on September 29, 2016, 06:48:01 PM

Thanks!

That was my next question!
Is this diagram correct?
(http://i86.photobucket.com/albums/k105/78transammeltdown/4656toH4Conversion_zpsc218c1a0.jpg)

Thanks again...

Title: Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
Post by: Wallington on September 29, 2016, 07:43:51 PM

That's the one, doesn't hurt to double check.

Title: Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
Post by: meltdown on September 29, 2016, 09:10:20 PM

Agreed!

Thanks again

Title: Re: Can 1980 Firebird headlight wiring handle 9003(H4) 60w Bulbs?
Post by: meltdown 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!!**