1986 C30 guage question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dbcox · 09-24-2008, 05:44 PM

We have a 86 c30 dually. My dad took the interior out and fixed and replaced everything. It origanally had a oil light. The new instument cluster has a guage in it and will not work with the original sending unit the guage goes all over the place. What needs to be changed or done to make the guage work?
Or does it need to be rewired to work the guage?

**Captkaos** · 09-24-2008, 06:03 PM

What year did the cluster come out of?

dbcox · 09-24-2008, 06:10 PM

He got it out of a 1985.

80SPORT · 09-24-2008, 11:18 PM

The wiring harness is different between a warning lite and gauge package;you will need an oil sender and a temp sender on the engine;you can then splice in to the harness plug that came with the gauge package ...a factory manual is a asset about this time ....

**Captkaos** · 09-25-2008, 12:13 AM

Ditto on what was posted above. Although you need to modify the pins on the current plug. It is just a matter of repinning it with the correct senders.

dbcox · 09-25-2008, 02:16 PM

Thanks, we will check it this weekend

09-24-2008, 05:44 PM	#1
dbcox Registered User Join Date: Jan 2007 Location: georgia Posts: 72	1986 C30 guage question We have a 86 c30 dually. My dad took the interior out and fixed and replaced everything. It origanally had a oil light. The new instument cluster has a guage in it and will not work with the original sending unit the guage goes all over the place. What needs to be changed or done to make the guage work? Or does it need to be rewired to work the guage?

09-24-2008, 06:03 PM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: 1986 C30 guage question What year did the cluster come out of? __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

09-24-2008, 06:10 PM	#3
dbcox Registered User Join Date: Jan 2007 Location: georgia Posts: 72	Re: 1986 C30 guage question He got it out of a 1985.

09-24-2008, 11:18 PM	#4
80SPORT Registered User Join Date: Mar 2008 Location: red deer alberta Posts: 777	Re: 1986 C30 guage question The wiring harness is different between a warning lite and gauge package;you will need an oil sender and a temp sender on the engine;you can then splice in to the harness plug that came with the gauge package ...a factory manual is a asset about this time ....

09-25-2008, 12:13 AM	#5
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: 1986 C30 guage question Ditto on what was posted above. Although you need to modify the pins on the current plug. It is just a matter of repinning it with the correct senders. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

09-25-2008, 02:16 PM	#6
dbcox Registered User Join Date: Jan 2007 Location: georgia Posts: 72	Re: 1986 C30 guage question Thanks, we will check it this weekend __________________ www.lubedealer.com/dbcox ZO#1568374

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