Fule sending unit 2008 AC 650H1

[Sarge]

Anyone having or had a problem with the sending unit regeristing when full but after the fuel level drops about a gallon then it registers empty or jumps to different levels.

Sarge

[DirtDemon]

If it were me, I would take the unit out of the tank and visually inspect it. The floating part of the sensor is probably just getting hung up somehow, could be some sort of debris or damage to the float. Worst case, you will need to replace the whole thing which is only about $65 from Babbits Sports Center.

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[Sarge]

If it were me, I would take the unit out of the tank and visually inspect it. The floating part of the sensor is probably just getting hung up somehow, could be some sort of debris or damage to the float. Worst case, you will need to replace the whole thing which is only about $65 from Babbits Sports Center.

Babbitts Sports Center | Arctic Cat OEM Parts | Can-Am (Bombardier) OEM Parts | Honda OEM Parts | Kawasaki OEM Parts | Polaris OEM Parts | Sea-Doo OEM Parts | Ski-Doo OEM Parts | Suzuki OEM Parts | Yamaha OEM Parts

Ok Dirtdemon Thank you kindly for the info. This is a digital display would it it be a float or sensors in your opinion. I'm an old guy but new to this sport.

[DirtDemon]

Hard to say, but I would still take a look and make sure the float unit is working properly, if it seems fine, then I would suspect an actual electrical sensor/sending unit. The reason I am suspect of the floating part of the sensor is that it works when full, but when it has to move, it begins to give false readings and is inconsistent, that kind of sounds typical of a sticking tank float. Also, there are apparently two different models, there is the 650 H1 Auto FIS and there is the 650 H1 TRV Auto. I don't know what all the differences are, but I did notice that the fuel lever sensor unit is slightly different and about $12 more expensive on the TRV model.

Edited August 29, 2010 by DirtDemon

[mikeexplorer]

This is a common problem and I also had it. Arctic Cat posted a bulletin about and one easy way to possibly fix it is to buy a bottle of Chevron's Techron additive and put about half of it in and the rest on the next tankful. It cleared my issue up for awhile. I also had a weird problem with my SUV suddenly only reading from half to full all the time. I dumped a bottle of the stuff in and it cleared it up in about 2 weeks. That was over a year ago and its been fine ever since. It seems to be sulfur deposits that gets on the sending unit fouling it up.

Mike

[Sarge]

Mike Thank you Iheard about that solving ploblems on chevy's I'll get it a shot

Josh I'll do your suggest if mike's suggestion doesn't give me the result or I spent money

Thanks gentlemen

Bob

[mikeexplorer]

Depending on how bad its fouled it might take a week or so to clear up. Better then ripping into it if you don't have to.

On a different note, my SUV gauge crapped again so I dumped another bottle in and two days later, good again.

Mike

[DirtDemon]

I agree, if you don't have to take things apart, don't. I think Mike's advise is solid, he has been giving alot of good advise to AC owners here.

[Sarge]

The fuel cleaner fixed the problem for now, Thanks for the tip Mike and Josh

[DirtDemon]

Anytime man, hope it stays good for you.