TeamCapri
Tech, Repairs, Upgrades => Capri N/A 89-94 => Topic started by: MechaJubei on November 04, 2020, 12:48:59 PM
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My fuel gauge acts wonky once it hits about halfway down. It's fine when I fill it up, then about 80 miles in and the needle is getting closer to the halfway mark, the needles drops down way past the Empty mark. If I fill it back up, the needles goes back to the normal Full mark. Is this just a faulty fuel sensor? Are those hard to come by?
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It's part of the fuel pump hangar assembly, and as far as I am aware it is not available new. I don't think it can be had for a similar mazda platform, ie a 323 or mercury tracer.
Used may be your best bet, if you can locate one in the junkyard.
I do recall seeing a 323 GTX guy having similar issues, unable to secure a replacement, he rebuilt his. The mechanism is a wire-wound potentiometer, the wire had worn thru where the wiper makes contact. He measured the wire gauge, found exact wire replacement and re-wound it to bring it back into operating order.
I think that was on the clubprotege forums. You might still be able to find it there, or I may have posted a link on teamcapri here in the past. Who knows with the photobucket debacle if the pictures are still available
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Found it pretty easily, pictures are gone though :(
Would need to verify the wire gauge before proceeding in case it is different.
Here's the link: http://www.clubprotege.com/forum/showthread.php?57674-how-too-fix-your-fuel-lever-senders-and-for-only-5!!!
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Found it pretty easily, pictures are gone though :(
Would need to verify the wire gauge before proceeding in case it is different.
Here's the link: http://www.clubprotege.com/forum/showthread.php?57674-how-too-fix-your-fuel-lever-senders-and-for-only-5!!!
Thank you! I'm in talks with a couple people over at the Capri FB page getting some other random parts, I'll see if maybe they have one too. :)
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I found a company that rebuild senders, but don't have the info, I'm in Daytona.
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I don't know if the "universal" fuel sending units available would work in our Capri's, but Auto Meter and Dorman make such, among others probably. On Jeg's for example, see below. Perhaps this is an option as they have a wide range of adjustments for different applications.
Good luck,
Steve
https://www.jegs.com/i/Auto-Meter/105/3262/10002/-1
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The resistance on these is usually for a Chevrolet and doesn't quite match up with our gauges.
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I wondered about that, even as I was typing. I was going to dig out my factory manual to see if that spec was in there...still haven't done that (trees and a chainsaw diverted my attention).
Thanks, Jack.
Steve
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Gentlemen!
I just got my hands on this pump/filter/sender assembly:
https://ibb.co/gjMdV8y
I was testing the potentiometer, which does indeed change resistance with the position of the float.
I measured the range from about 2 Ohm at empty, to 107 Ohm at full. The change is linear with position.
Anybody know if this is the correct range?
Cheers
James
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That sounds like the correct range, the best I can remember. Of course I have old timers disease.
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Thank you everyone for the help on this. I will keep this posted if I get to a final solution. :)
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I have the same problem, I swapped out my sender with a second hand unit with a new pump installed and its still faulty, sometimes works and other times its all over the place. Keep us posted!
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On mine it seems the actual gauge is faulty.
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On my first Capri my fuel gauge itself had bad solder joints on the back of the gauge. I cannot recall if I re-soldered it or swapped it, but the gauge was the problem.
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On my first Capri my fuel gauge itself had bad solder joints on the back of the gauge. I cannot recall if I re-soldered it or swapped it, but the gauge was the problem.
This one occasionally will change position and worked the same with the original sender that was on the car.