Fuel tanks not equalizing , fuel guage stuck on full

Good information! We have had this problem on our truck at work for 10 years now and just leave the caps backed off 1/4 turn from fully seated to fix the problem. I think this will be a project for next week.

 

I do appreciate the response but we did find out the problem. What was occurring was the bunk heater fuel line which feeds into the fuel tank was corroded on the inside. So when the bunk heater was turned off after usage residue from the lining of the bunk heater fuel line would wash back into the fuel tank. This caused a clog in the fuel tanks transfer line thus making it were 1 tank would have fuel in it and the other 1 would be completely empty. This also affected the fuel gauge on the dash board, since the fuel level indicator is located in the left fuel tank and the fuel in the left tank couldn't transfer over to the fuel tank on the right due to the fuel tank transfer line being clogged by the bunk heater lining residue the gauge would always show as the truck being full.

I hope this helps.

 

This was just the case with my truck. It's such a stupid design failure. I mean, the inside of these trucks are great, and the older Internationals are awesome trucks. But these new ones are plagued up the wazoo with dumb #### like this. It's a shame too because when everything works they are great trucks.

These would be great trucks if everything worked right.

 

10-4

 

I’m having that issue right now. Only my passenger side is getting empty. One problem I’m having that nobody else has mentioned is that when my driver side over fills, it starts to leak. I have fuel all over the back of my cab, trailer and tractor brakes. Getting it looked at now as we speak in Grand Junction Co. Realized the leak when going through the mountains of Utah on I-70 (scary ####). I would never have made it going to the mountains in Colorado. Let’s see what they tell me. I’ll keep you guys posted. I’m driving an 07 Volvo.

 

I having same problem the fuel tank is not equiallzing. Where is the fuel transfer line? How do I replace or clean it if there are fuel in the tank on the driver side? Pleased help

 

I am having same problem. The fuel gauge is on passenger side , it’s always fuel in it than driver side. Is the transfer pump cleanable?
Ty

 

Ty very much. I have never used bunk heater. I am whoever owned it before might have. Any pics of what I need to clean ? Appreciate it