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YOUR RESEARCHAnyone have their gas gauge hit zero and then come back? RESOLVED
Leading reported evidence
Check resistance as the float moved along the contact
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No successful repair reported for this finding.
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Performed · outcome unconfirmed · Original poster
The dealer took out the sender unit and checked the resistance as the float moved along the contact.
Anyone have their gas gauge hit zero and then come back? RESOLVED
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Leading evidence: 'Check resistance as the float moved along the contact' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check resistance as the float moved along the contact' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed · Original poster
Cleaned off the contacts on the sensor and they reinstalled rather than replace.
Anyone have their gas gauge hit zero and then come back? RESOLVED
Test ok
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Anyone have their gas gauge hit zero and then come back? RESOLVED
Fill amount and usage
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Suggestion
The amount of fuel in there is inferred by previous fill amount and usage.
Anyone have their gas gauge hit zero and then come back? RESOLVED
Repair (for a few hundred dollars i think)
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Suggestion
I have not tried but if you google there are shops specialized in culster repair (for a few hundred dollars I think).
Anyone have their gas gauge hit zero and then come back? RESOLVED
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Driving along and the gas gauge will hit zero off and on. Light flashes and the warning "failure of fuel level indicator" comes on.
I'm not sure if there is a pattern yet as to when it happens. If I just keep driving it comes back on.
The dealer took out the sender unit but really could not pick up a problem with it. (They moved the float up and down and watched the resistance.)
The dreaded thought of a cluster replacement has come up (not under warranty anymore). In that case I might fill it up and trade it in!
Anyway, suggestions and/or commiseration welcome!
I have not tried but if you google there are shops specialized in culster repair (for a few hundred dollars I think). But if it's intermittent, your shop may not be able to replicate the problem so I don't think you can rule out the sensor 100% just yet. Sounds like the instrument panel is not getting the sensor signal intermittently. That could be the sensor, all the connections between the sensor and the instrument cluster, or the instrument cluster itself. I think you need a shop very good at diagnosing electrical problems...
Good point. The dealer removed the sender, but it tested OK. Cleaned off the contacts on the sensor and they reinstalled rather than replace. Perhaps just the act of taking this all apart and reinstalling will fix the problem. I'll let you know later. Thanks!
Just checking in again in case any of you has this problem. Given the gas fumes, I did not want to do this one at home. The dealer took out the sender unit and checked the resistance as the float moved along the contact. It tested OK. Rather than replace the part, they cleaned it well and replaced it. Ever since it has been working fine!
Bringing this up, as my current car has this issue, was the contact at the sender bad, or at the cluster? What's involved in getting to a sender (C2)?
Thanks
OK, update.
It ended up being the fuel level sender, replacement made the error message go away and the gauge reads correctly now. This is on a 2002 C2 996 with 88k miles as of the repair today. One of the level sensor wires had broken on the assembly, also the lower part had separated from the upper assembly. Not a very hard job, but somebody got pretty creative in the routing of the hoses in the tank...
Anyone else have this problem recently? I was driving with just under 1/4 tank when I got a fuel level indicator failure on the display under the tach. The needle then dropped to 0 and the red low fuel light started to flash. It flashed for a little while than stopped. I filled up the tank, it seems to be working now. I suspect it will probably fail again though next time a reach under 1/4 full. Maybe unrelated, but just before the failure I could hear a strange noise from in front of the dash. It sounded like the stereo was on very quietly, but it was off.
Is the consensus I need a new sending unit? I found a few threads on renntech that say sending unit is the culprit. I looked in the Pelican book, seems pretty straight forward to replace. Very convenient that I don't have to remove that tank. Any major differences since I have a C4? I think I access the sender from the metal dome in front of the battery, rather than under it.
One difference is your saddle tank has an isolated section that has no sensor. The amount of fuel in there is inferred by previous fill amount and usage. If you pull the sender with the tank less then ~1/2 full? you will most likely have to recalibrate the gauge/sender system.
I was able to swap the units pretty easily. The problem I've had since thought is it's very slow to start. I really don't know why. Anyone have any ideas? Thanks.
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