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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: bladerunner on December 23, 2011, 08:32:26 am

Title: Can't switch tanks
Post by: bladerunner on December 23, 2011, 08:32:26 am

85 K10 with sidesaddle tanks.  I have not been able to switch to my passenger side tank since I bought the truck this past summer, so of course I wait until the dead of winter to fix it.  So first we tried a new sending unit, no luck. Next a new switch and same thing. Basically I am at the point now where there must be a bad connection somewhere.  I got the shop manual with wiring diagrams, but I am going to take a break for Christmas before I get back in it.  Basically I am just fishing for advice if anyone has got it.  If I have to I can wait until warmer months to really get at it, I have just put a lot of time into it so far that I don't want to give up.

Title: Re: Can't switch tanks
Post by: bladerunner on December 23, 2011, 10:48:05 am

Cracked open the shop manual and thankfully there is a nice step by step guide for checking the auxiliary fuel tank circuit. Looks pretty straightforward.

Title: Re: Can't switch tanks
Post by: bd on December 23, 2011, 11:27:29 am

If you need help, hollar.   :)