Fuel Gauge E
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Joined: Apr 2006
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From: Washington
The 2004 Dash has a DIAG mode too!
Hopefully, you have an ODBII gauge?
Could the fuel float have a hole? and thus always SINK? Since it's ohm-ing out correctly maybe it just won't float?
ie: you ran the tank down low, the fuel sender got "stuck" at the bottom of the tank. You then filled it up and the fuel covered the float.
now that you removed the float - maybe it'll just work fine once it's re-installed.. (as long as it doesn't get stuck near the bottom again)
I am pretty sure you can query the fuel level (i.e.: scangauge2 Xcode) this should help you determine whether the PCM is getting anything in terms of fuel level from the tank.. Then you can decide whether the issue is getting a value FROM the sender - OR a display issue in the cluster (and overhead)..
I also believe you can put the DASH into "diagnostic mode" by holding DOWN the trip reset button AND then turning the key "ON" (NOT to start).
Actually, maybe you DO start it - I can't recall that part.. (try it one way or the other..)
Then release the trip button. IIRC, you then press/release the trip button to cycle through the various sensor values by looking at the odometer digital readout.
Hopefully, you have an ODBII gauge?
Could the fuel float have a hole? and thus always SINK? Since it's ohm-ing out correctly maybe it just won't float?
ie: you ran the tank down low, the fuel sender got "stuck" at the bottom of the tank. You then filled it up and the fuel covered the float.
now that you removed the float - maybe it'll just work fine once it's re-installed.. (as long as it doesn't get stuck near the bottom again)
I am pretty sure you can query the fuel level (i.e.: scangauge2 Xcode) this should help you determine whether the PCM is getting anything in terms of fuel level from the tank.. Then you can decide whether the issue is getting a value FROM the sender - OR a display issue in the cluster (and overhead)..
I also believe you can put the DASH into "diagnostic mode" by holding DOWN the trip reset button AND then turning the key "ON" (NOT to start).
Actually, maybe you DO start it - I can't recall that part.. (try it one way or the other..)
Then release the trip button. IIRC, you then press/release the trip button to cycle through the various sensor values by looking at the odometer digital readout.
The only thing I have is the sct programmer that came with the truck. I'm not too sure what it will tell me as far as fuel levels go....I plugged it into the ODBII port and found some codes for glow plugs and such.
Lead Driver
Joined: Oct 2010
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From: Ouray, CO
We looked the float over pretty good and nothing stood out. Nothing changed after reinstalling it.
The only thing I have is the sct programmer that came with the truck. I'm not too sure what it will tell me as far as fuel levels go....I plugged it into the ODBII port and found some codes for glow plugs and such.
The only thing I have is the sct programmer that came with the truck. I'm not too sure what it will tell me as far as fuel levels go....I plugged it into the ODBII port and found some codes for glow plugs and such.
I've not seen the float - so I'm not sure if it's like a boat that fills with water and sinks - or if it's made of a material that floats and thus won't "fill with fuel".
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Joined: Apr 2006
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From: Washington
I'd try the dash DIAG mode then.. (but I would suspect it's going to reveal the PCM thinks the tank is empty).
I've not seen the float - so I'm not sure if it's like a boat that fills with water and sinks - or if it's made of a material that floats and thus won't "fill with fuel".
I've not seen the float - so I'm not sure if it's like a boat that fills with water and sinks - or if it's made of a material that floats and thus won't "fill with fuel".
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Joined: Apr 2006
Posts: 115
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From: Washington
OK.........So.......Got it fixed! While I was waiting for my brother in law to show up I just so happened to call a wrecking yard to check on if they had any new trucks in with the overhead console. One had arrived a couple days ago and it was still intact. Drove out there and brought back just the computer. Brother in law shows up for round 2 of troubleshooting, I found a couple blown fuses that didn't mean much. We also found and repaired an exhaust leak at the flange while checking electrical connections under the truck. For grins, I replaced the trip computer and it actually turned on. I figured with my luck it would have been damaged. And the best part is my fuel gauge is now working!
I was curious so I unplugged it and my fuel gauge was still reading correctly. So....I assume my buddies "repair" must have caused a short back to the fuel gauge when plugged in.
Total cost: $68 for the trip computer with a 6 month warranty and a case of beer for the BIL.
I appreciate all the help guys. I'm not sure if anybody else would ever have this exact scenario but hopefully it's useful.
I was curious so I unplugged it and my fuel gauge was still reading correctly. So....I assume my buddies "repair" must have caused a short back to the fuel gauge when plugged in.
Total cost: $68 for the trip computer with a 6 month warranty and a case of beer for the BIL.
I appreciate all the help guys. I'm not sure if anybody else would ever have this exact scenario but hopefully it's useful.
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hangon2me
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Mar 1, 2009 07:40 AM
