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Old 05-25-2019, 12:46 AM   #18
doobiebro
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Join Date: Nov 2011
Location: Chaparral NM
Posts: 688
Re: bad fuel delivery 77 c20 dual tanks

Quote:
Originally Posted by 74CustomK20 View Post
I'll have to remember this. My new to me 78 has dual tanks and my driver sidejust kills the motor. Oddly enough it only has 16 gallon tanks so not being able to go far really really sucks lol

Mine has 16 gallon tanks also. Check your selector valve and see if it has the 3 fittings with 1 power wire also. Check for power with ignition on.
This valve I replaced is plumbed aux tank (left tank) and main tank (right tank). With ignition switch on Aux tank position/Left tank(valve energized). When you set switch to (right tank) Main tank the wire has no voltage/not energized. With some help from Hatzie I was able to figure out the installation instructions for the fuel selector valve.
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