Ron Sebastian
Full Access Member
- Joined
- Nov 8, 2018
- Posts
- 299
- Reaction score
- 393
- Location
- Vero Beach
- First Name
- Ron
- Truck Year
- 1987
- Truck Model
- Custom Deluxe V10
- Engine Size
- 350
I am posting in case someone else has this issue.
1. Truck runs when switching tanks left and right. Gauge reads past full but not pegged at 3 O'clock. (unknown amount of fuel in either tank).
2. When the right tank electrical connector is disconnected at the fuel pump (ground maintained), fuel gauge pegs past 3 O'clock and will not start.
3. When the tank is switched to the left tank, truck runs but the gauge is still pegged past 3 O'clock.
4. Reconnect the right tank electrical and the truck starts and runs as normal. Gauge goes back to just over full.
5. Disconnect the left tank electrical connection, (maintaining ground). Gauge stays at the just past full mark and the truck runs when switched right to left tank as normal.
6. At this point I have no idea the amount of fuel in either tank (over 10 gal each), nor do I know which tank fuel is being drawn from, but the truck runs smooth like velvet. Don't know where to turn, at wits end. Getting ready to throw in the towel and bring to a shop and pray.
7. I have replaced, the fuel sending unit on the left twice, brand new units, fuel switching valve new x 3, new relay and new switch in the cab.
1. Truck runs when switching tanks left and right. Gauge reads past full but not pegged at 3 O'clock. (unknown amount of fuel in either tank).
2. When the right tank electrical connector is disconnected at the fuel pump (ground maintained), fuel gauge pegs past 3 O'clock and will not start.
3. When the tank is switched to the left tank, truck runs but the gauge is still pegged past 3 O'clock.
4. Reconnect the right tank electrical and the truck starts and runs as normal. Gauge goes back to just over full.
5. Disconnect the left tank electrical connection, (maintaining ground). Gauge stays at the just past full mark and the truck runs when switched right to left tank as normal.
6. At this point I have no idea the amount of fuel in either tank (over 10 gal each), nor do I know which tank fuel is being drawn from, but the truck runs smooth like velvet. Don't know where to turn, at wits end. Getting ready to throw in the towel and bring to a shop and pray.
7. I have replaced, the fuel sending unit on the left twice, brand new units, fuel switching valve new x 3, new relay and new switch in the cab.