John White
Well-Known Member
I have a 1992 Chev Kodack. 366 gas. No problem for years. It has dual fuel tanks and no manuel switch. My normal procudure is to fuel the left tank as I can see when pulling up to pump and dont have to walk around. I do fill the right side sometimes when a pump is conivenient on the right side. The other day I was going out on a job and I seen I had just slightly under 1/2 tank. I normally get gas then. I pulled into the pump and filled the right tank. Fuel gauge showed just over 1/2. A short time later the truck shut off and I had to have it towed. Evidence led me to believe that there was a problem in the distributor. (weak spark) After replacing the module, cap and rotor it seemed ok. Back to the job site run ok for about 30 miles. Shut down again. Another tow. Begin to check fuel system. Ran a stick down iln fuel tank. Left tank was compeletly empty. Found that engine pulls off that tank. Right tank was 3/4 full. Did some checking and found that the right tank pumps fuel to the left tank and fuel pump wire on right side was not making good contact. How does this switching system work. Lets say you have 3/4 in your left tank and fill your right, what prevents if from pumping it all into the left? I am hesitant about fillling the right tank now. I hooked a wire and pumped all the fuel out of the right tank, then took it to the gas station and filled the left tank till it was full. (fuel gauge showed just above half) Drove the truck for a couple of loads and took a stick and checked the left tank. Down some. No fuel at all in right tank. I am tempted to just only fill the left tank and use off that tank but it is nice having two tanks as I can fill up when gas price is down. So how does this switching system work? Is the fuel pump on my right tank running all the time now that no fuel is in it? Dont want to burn it up. Called Chev. garage and they were no help. Is there a relay some where that makes the right tank pump only on demand (when left tank gets empty):beatsme