Question about 1999 Isuzu Rodeo

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Gas tank/ gas gauge

I put in a new gas tank because it was leaking somewhere...but now my gas gauge is not working. I have only had this 1999 4 wheel drive Isuzu Rodeo for a few months and i am unsure how big my gas tank is... and apparently my gas gauge is broken as well...does anyone know how big the tank is?

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  • yadayada
    yadayada May 11, 2010




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What does your manual say that it is? Always check in your manual and you will have plenty of information to help solve your questions. However, I want to venture a guess about your gas gauge. You may have a computer mis-read and the new tank install is not interfacing with your computer.

Posted on Jun 29, 2009


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How dangerous is it to drive my 2001 rodeo with the gas tank shield rusting out?..can I drive it?

If it were my vehicle I would still drive it but have it repaired or replaced sometime in the near future. Check there are no gas leaks from the tank from any stone damage etc for peace of mind.

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1987 Nissan Maximum gas hand doesn't work & transmission is reading full but it leaks sometimes

There are three fixes possible for the gas gauge....but I would have this troubleshot by a garage:

1. The gas gauge itself does not work anymore. It could have just finally "died". Problem is, you cannot replace just the gauge. It has to be the whole instrument cluster. Having a garage shoot power TO the gauge and then shot the gauge itself will let you know if the gauge assembly is bad.

2. The fuel sending unit is bad. This means the wiring to the gas tank fuel pump/sending unit is bad and does not work. The signal is not being sent to the fuel/gas gauge. This means the fuel pump assembly needs replacing.

3. There is a wire problem somewhere between the gas tank and the dash to the fuel gauge.

The transmission leaking but still reading full just means that there is plenty of transmission fluid in the transmission. The drips or spots you are finding are not enough to "read" low enough. Unless you have a HUGE spot of tranny fluid left on the ground, I would just think about a transmission fluid filter change. This way, a new pan gasket will be installed and fresh fluid filled to the proper level will be accomplished on your car.

Sep 02, 2014 | Cars & Trucks

1 Answer

When i put gas in a certain point it runs out from underneath

My Rodeo did that and we found that the O-ring that seals where the fuel pump sit's in the tank was shot and leaking. To fix you have to run your tank low and find a pit where you can drop the tank and remove the fuel pump and install a $.50 O-ring......Gary Arnold

May 01, 2014 | 2000 Isuzu Rodeo

1 Answer

Gas guage doen't work

It's probably WATER coming out of the exhaust as that's the result of the engine running...not a problem.

Gas gauge is separate from the pump....usually. It could be a fuse (look in the Owner's Manual for fuse location) or the fuel 'sender' which is what measures the fuel level. This is usually IN the fuel tank. Sorry I don't know where it is on your Rodeo..

Search online - Google it - for fuel sender. Remember, your Rodeo is the same as the Honda Passport for the '94-2002 model years so search under the Passport too.


Mar 14, 2014 | 2000 Isuzu Rodeo

1 Answer

My for taurus 1999 gas gauge will not work. I put in a new fuel pump and they also change out the gauge inself. Still will not work

Perhaps there is a broken are bad ground somewhere. The fuel gauge should work off resistance to ground.

Sep 05, 2011 | Ford Taurus X Cars & Trucks

2 Answers

The fuel gauge on my 1999 isuzu rodeo ls does not register

First thing is check fuel gauge fuse,then trace to connection to see if wire has came partially undone , let's hope it is not float in tank, then it's a more complex fix. Let me know on that first. Thanks mike from fixya

Jun 09, 2011 | 1999 Isuzu Rodeo

1 Answer

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There could be a poor connection or an open circuit between the power control module and the fuel gauge sender, or the fuel gauge sender itself is bad. The sender is mounted to the gas tank and usually can be replaced without dropping the tank.

Apr 11, 2011 | 1999 Isuzu Rodeo

1 Answer

I have a 1999 isuzu rodeo and the check engine light came on and it was stalling and I had autozone to put a reader on it and it was camshaft sensor and when I got home I jingled the wire and it started...

If the the camshaft sensor has indeed failed, the vehicle will not run, it needs this input for engine timing and cranking idling rpm, ect. If jiggling the wire got it to run momentarily, I would recommend replacing the camshaft sensor first, before buying an expensive p.c.m. As for the fuel gauge, there may be a bad sender in the tank, or faulty gauge. I hope this helps.

Mar 15, 2011 | 1999 Isuzu Rodeo

1 Answer

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you might have a leak or it just happens to be that most cars have this issue. even if you have a lot of gas in the car, the gauge shows a higher amount than it really has in the tank. this is caused by the actual shape of the gas tank. the less gas you have, the more accurate the gauge is.

Nov 07, 2010 | 1999 Chevrolet Malibu

1 Answer

My 1997 Voyager appears to be leaking gasoline. It has a 3.0 liter engine and runs fine. But I'm positive there is a leak somewhere because I put 4 gallons in the tank, go about 50 miles and the gas gauge...

It could be the gauge, or the sensor attached to the Fuel pump in the fuel tank. I don't remember if the Instrument cluster has a replace gauge for fuel in that year model, I know the 1994 didn't. To replace the sensor in the tank you have to replace the pump as well, they are 1 piece and run about $200 for the part. I would just start keeping track of mileage with the trip meter if it were me but the choice is yours. You can replace the Instrument cluster with a used one or refurbished one if you like. That will cost about $75 for the part. If that doesn't work it's the tank sensor.

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