mine lights up but the part that says trans temp in words doesnt just the gauge does

 

helllooooooooo?

 

bump bump bump

 

has anyone replaced a gauge cluster back light? what is the bulb number?

 

'03 - '05 Instrument cluster customizing. - FSC Forum

that thread is mainly on how to customize and change the bulb color, but it shows how to take it all down to get to the bulbs

here is the bulb number
FSC Bulb Replacement Guide - FSC Forum

 

ok so i know it can be 161 or 194 or 74, the 74 is 1 watt the 161 is 3 watts and the 194 is 4 watts. does anyone know which bulb specifically is illuminating the trans temp gauge?

 

ok well here's some news... the light bulbs that illuminate the gauges are soldered into the entire circuit board. they are not a "pop in, pop out" replacement. maybe on earlier models, but my 05 LLY has them soldered in, and in an almost impossible way to replace. I took one off and went to Radio Shack and they have a close replacement, just a little smaller. 272-1029 - i soldered a new bulb on and it works fine. in case you have never removed your gauges, it also is a pretty complicated, time consuming process. The needles have to come off all the pins, and the face will come off, exposing the light bulbs. i actually had 2 of them burnt out, so i'm sure there are plenty more to come. YET ANOTHER excellent design from our friends at GM. has anyone else done this procedure? i took some pics, and can upload if need be.

 

Thats good that you found them at radio shack. My question is how do you know where to install all the gauges at. If they are installed incorrectly the fuel gauge wont be accurate. The needle position controls when it tells you, that you need more fuel.

 

i have a few burnt out illumination, even in the steering wheel, post the pics i would love to see how its done before i attempt it, and radio shack did have the bulbs in stock?

 

yes the bulbs are in stock, and my radio shack is pretty ghetto. ill try to get the pics up, but its pretty self-explanatory once you tear into it. steering wheel controls are solder on as well, but i think gm parts direct sells each one for 20 bucks or less if you want to replace all 4.

 

any chance that there is some way for me to fix my PRND321 illumination problem the same way that you fixed that gauge bulb? My gear selector lights and odometer lights have been out for months...

 

Ya what he said !!!! Me tooooooo!!!!!!!!!!!!! Anybody know?

 

a tip on getting your gauges to "zero" so you can mark them is to put your truck in R and turn the key to start, you can hear the stepper motors and the gauges will go all the way "down"

 

 

I had the gauges apart but i'm having problems finding new bulbs.Anyone know the m/a on them bulbs?

 

WELCOME to the Neighborhood!!!

No Sir, not off the top of my head, but you MAY be able to find them @ GM Parts Direct: Your direct source for Genuine GM Parts

Enjoy the site!!!

God Bless!!!

Chris

 

Thanks,but going to the dealer is useless,they say that i need to buy the cluster.

 

radio shack. fill out your sig.. on the 03 and up they are solder in only.