Hey guys, hope everyone is doing well. I've noticed in my 2005 Honda CR-V that when I fill up the gas all the way it still shows on my instrument cluster that it's not completely full? Is this is a Fuel Pump Sending Unit issue? Thanks!
Fuel Gauge on Instrument Cluster
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Likely it is, yes. I'd let it go as long as I could live with it. It's a big job. This may just be a symptom from the car sitting unused for a while. If so, it might loosen up and work better after you run a few tanks of fuel through it and give the float a few chances to move up and down.
Could just be a connection that is not making good contact.(maybe at the connector next to the fuel pump- you could try disconnecting that connector and reconnecting it several times to burnish the contacts).
Sometimes the sending unit on the fuel pump gets coated in fuel additives. Some folks have had luck by adding Chevron Techron Concentrated Plus fuel additive to a couple of tanks of gas. Supposedly a solvent in that helps dissolve that coating.
Could be worth a try esp if you see some Techron on sale.
Buffalo4
Sometimes the sending unit on the fuel pump gets coated in fuel additives. Some folks have had luck by adding Chevron Techron Concentrated Plus fuel additive to a couple of tanks of gas. Supposedly a solvent in that helps dissolve that coating.
Could be worth a try esp if you see some Techron on sale.
Buffalo4
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2,208 Posts
I don't know how easy it is to get to the fuel tank in the 2nd gen CR-V but in the 3rd, it's just a matter of folding forward the rear seat, pulling back a velcro section of the carpet and it's all right there. Handy for troubleshooting, and easy to replace the sending unit if needed.
My '97 had a "lazy" fuel gauge, in that it always took 4-5 minutes to get to full after filling it up. In addition, the low fuel warning light would work maybe once or twice a year. I used the trip odometer as a "gauge", always filling up by 300 miles, just in case the gauge was that far off. It shouldn't be a big issue to replace that sending unit if that's the problem. I doubt the fuel gauge in the instrument cluster is faulty (I've never heard of it happening), but there is always that very slim chance...
My '97 had a "lazy" fuel gauge, in that it always took 4-5 minutes to get to full after filling it up. In addition, the low fuel warning light would work maybe once or twice a year. I used the trip odometer as a "gauge", always filling up by 300 miles, just in case the gauge was that far off. It shouldn't be a big issue to replace that sending unit if that's the problem. I doubt the fuel gauge in the instrument cluster is faulty (I've never heard of it happening), but there is always that very slim chance...
Very Handy!!!
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Happened to me i found a wiring broken could not see it broke, due to the plastic of hte wiring. so inspect very careful.
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