Stock Gauges? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72gmcshorty · 10-15-2011, 11:08 AM

What needs to be done to make the stock gauges work?

I recall the oil sender needs to be drilled and tapped. I don't recall the rest.

I have a 2006 motor and was wondering if I can fill the hole in the firewall for the speedo?

BR3W CITY · 10-15-2011, 12:33 PM

youd need a converter take the electronic output and convert it to something a traditional cable style speedo can understand. I think its called a CableX or something like that.

Oil sender needs to be drilled for, I drilled the relocation blockoff on my swap pan.

Temp sensor needs to be installed.

Fuel level may or may not read right depending on the resistance sweep it reads. Depending if you have a later model sending unit, or the original piece, the gauge may or may not work. If it doesn't work (IE Reading FULL all the time), you can add a resistor inline and fix the problem. There are a couple threads on that itself.

There may also be an issue with the tach; the LS pcm puts out a 4cyl tach signal, which doesn't translate to gauges setup for 8cyl read. Usually you can just change the tach to 4cyl mode, but on a stock piece that isn't really an option. I've been told a tuner with access to the PCM through HP tuners or similar, can change the tach signal output in the computer. I have no first hand experience with this one tho.

Volt gauge/Ammeter should work as is.

Shon · 10-17-2011, 09:55 AM

Speedo: I use the Abbott Cable X box to run my stock Speedo from the VSS from PCM.
Oil pressure: PCM doesnt need the input so I use Autometer 2268 to adapt to a mechanical sending unit
Temp sensor must me in the head for the PCM and then I have a seperate mechanical sensor put in the heater hose but you could tap the WP to get the temp or put a sending unit in the passenger head with the right adaptor.
To get a tach to work you can change the PCM to put out the correct signal but sometimes you need a resistor, search google for that info.

usmcchevy · 10-17-2011, 10:43 AM

Quote:

Originally Posted by Shon

To get a tach to work you can change the PCM to put out the correct signal but sometimes you need a resistor, search google for that info.

FAQ: http://67-72chevytrucks.com/vboard/s...d.php?t=445975

10-15-2011, 11:08 AM	#1
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	Stock Gauges? What needs to be done to make the stock gauges work? I recall the oil sender needs to be drilled and tapped. I don't recall the rest. I have a 2006 motor and was wondering if I can fill the hole in the firewall for the speedo? __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd

10-15-2011, 12:33 PM	#2
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Stock Gauges? youd need a converter take the electronic output and convert it to something a traditional cable style speedo can understand. I think its called a CableX or something like that. Oil sender needs to be drilled for, I drilled the relocation blockoff on my swap pan. Temp sensor needs to be installed. Fuel level may or may not read right depending on the resistance sweep it reads. Depending if you have a later model sending unit, or the original piece, the gauge may or may not work. If it doesn't work (IE Reading FULL all the time), you can add a resistor inline and fix the problem. There are a couple threads on that itself. There may also be an issue with the tach; the LS pcm puts out a 4cyl tach signal, which doesn't translate to gauges setup for 8cyl read. Usually you can just change the tach to 4cyl mode, but on a stock piece that isn't really an option. I've been told a tuner with access to the PCM through HP tuners or similar, can change the tach signal output in the computer. I have no first hand experience with this one tho. Volt gauge/Ammeter should work as is. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

10-17-2011, 09:55 AM	#3
Shon Registered User Join Date: Sep 2005 Location: sc Posts: 1,203	Re: Stock Gauges? Speedo: I use the Abbott Cable X box to run my stock Speedo from the VSS from PCM. Oil pressure: PCM doesnt need the input so I use Autometer 2268 to adapt to a mechanical sending unit Temp sensor must me in the head for the PCM and then I have a seperate mechanical sensor put in the heater hose but you could tap the WP to get the temp or put a sending unit in the passenger head with the right adaptor. To get a tach to work you can change the PCM to put out the correct signal but sometimes you need a resistor, search google for that info. __________________ 71 Cheyenne C10 LWB cam'd 6.0/T56 Swap



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.