Is this bulb for the HVAC - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Shugalou · 03-09-2022, 10:53 PM

Hey guys I found a bulb dangling behind the stereo after I installed it. It's not the courtesy light as that's a bigger bulb. This bulb only comes on when the headlights are on.

Are the heater controls supposed to be lit up?

Its a 78

Thanks

Rich84 · 03-10-2022, 10:52 AM

They are on my '84.

Shugalou · 03-10-2022, 02:43 PM

Quote:

Originally Posted by Rich84

They are on my '84.

Thanks, does anyone know if they are on a 78? Would like to know before I have to tear into it… I just got it all back together last night
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**RodnRudy** · 03-10-2022, 07:24 PM

Yes there's a bulb that plugs into the heater control assy. That's probably the one you have hanging. Should be a hole in the control that the bulb holder pops into. These squares are not fun to get under the dash and mess with especially if you have factory air.

**RodnRudy** · 03-10-2022, 07:25 PM

Oh and mine's a 77 but it should be the same

Dead Parrot · 03-11-2022, 12:53 AM

My 75 climate control panel lights up. 2nd the thought that on an assembled dash that bulb is a PITA to get at. Might consider an LED before you go exploring. The stock bulb isn't very bright.

Shugalou · 03-13-2022, 11:28 AM

Thanks for the responses guys I’m gonna crawl under the dash and see if I can locate the hole. Yes I would put a blue led in there to match the gauge cluster I recently converted to led.
Excited to have this match the other lights if I can get at it.

Thanks again fellas
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Shugalou · 03-13-2022, 11:36 AM

Found the hole easily from under the dash.l luckily no ac to get in the way.
Thanks again
Posted via Mobile Device

03-09-2022, 10:53 PM	#1
Shugalou Registered User Join Date: Jan 2013 Location: Toronto, ON Posts: 458	Is this bulb for the HVAC Hey guys I found a bulb dangling behind the stereo after I installed it. It's not the courtesy light as that's a bigger bulb. This bulb only comes on when the headlights are on. Are the heater controls supposed to be lit up? Its a 78 Thanks Attached Images __________________ Found my dad's old truck http://67-72chevytrucks.com/vboard/s...d.php?t=563321 Newspaper Article Publishing the quest find my dad's old truck http://www.theglobeandmail.com/globe...ticle12494281/

03-10-2022, 10:52 AM	#2
Rich84 Registered User Join Date: Mar 2012 Location: Woodbury, Ct. Posts: 1,699	Re: Is this bulb for the HVAC They are on my '84.

03-10-2022, 07:24 PM	#4
RodnRudy Senior Member Join Date: Oct 2014 Location: New Palestine In Posts: 932	Re: Is this bulb for the HVAC Yes there's a bulb that plugs into the heater control assy. That's probably the one you have hanging. Should be a hole in the control that the bulb holder pops into. These squares are not fun to get under the dash and mess with especially if you have factory air. __________________ Phil "Money is only a tool to create and achieve what you want most in life" PayPal: rodnrudy@comcast.net

03-10-2022, 07:25 PM	#5
RodnRudy Senior Member Join Date: Oct 2014 Location: New Palestine In Posts: 932	Re: Is this bulb for the HVAC Oh and mine's a 77 but it should be the same __________________ Phil "Money is only a tool to create and achieve what you want most in life" PayPal: rodnrudy@comcast.net

03-11-2022, 12:53 AM	#6
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,629	Re: Is this bulb for the HVAC My 75 climate control panel lights up. 2nd the thought that on an assembled dash that bulb is a PITA to get at. Might consider an LED before you go exploring. The stock bulb isn't very bright.

03-13-2022, 11:28 AM	#7
Shugalou Registered User Join Date: Jan 2013 Location: Toronto, ON Posts: 458	Thanks for the responses guys I’m gonna crawl under the dash and see if I can locate the hole. Yes I would put a blue led in there to match the gauge cluster I recently converted to led. Excited to have this match the other lights if I can get at it. Thanks again fellas Posted via Mobile Device

03-13-2022, 11:36 AM	#8
Shugalou Registered User Join Date: Jan 2013 Location: Toronto, ON Posts: 458	Re: Is this bulb for the HVAC Found the hole easily from under the dash.l luckily no ac to get in the way. Thanks again Posted via Mobile Device

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