Question about 1994 Isuzu Rodeo

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I have a 2000 Isuzu Rodeo the gas gage is not reading correctly i fill it up and it reads empty and the gas light is on all the time.

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The fuel level sending unit is located inside the fuel tank along with the fuel pump and will need to be replaced if it has burned out. It may be included with a new fuel pump assembly or sold seperately. There could be a bad electrical connection so be sure and check that all electrical connections are clean and secured before you spend money replacing parts and removing the fuel tank.

Posted on Apr 25, 2009

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Fuel gage is not reading the amount of fuel in the tank. It either reads completely full or completelr empty.


Sounds like the sending unit in the gas tank may be the problem. The other possibility may be the guage but usually the sending unit goes first.

Oct 05, 2010 | 1994 Isuzu Rodeo

1 Answer

Signifique code p-1627


Trouble code P1627 means: PCM A/D Conversion Malfunction

This is a fuel sending unit code and it directly related to you goofy gas gauge. This is a common problem in 2nd Gen Isuzus. The fuel sending unit needs to be replaced. Most places will tell you that you must replace the entire fuel pump assembly module but you can buy just the sending unit.

Other faults to refer this problem and other c
odes: P0141, P0300, P0404, P1404, P1627, with this synthoms:
hesitates sometimes on takeoff, gas gauge gives random readings(sometimes will read empty, or full, or somewhere in between), Fuel light flashes sometimes.

Hope helps.

Mar 16, 2010 | 2000 Isuzu Rodeo

1 Answer

I have a 95 Isuzu Rodeo. I just recently filled my tank and the gas gauge reads empty.


Hello. Generally the problem is a faulty fuel pump sending unit. Other times though, the problem is just a loose connection. I generally take my vehicles with this problem to an autoelectric repair shop where they have the equipment to quickly locate the exact problem. regards, Joe
PS - kindly rate my answer as helpful. thanks.

Feb 12, 2010 | 2006 GMC Sierra

1 Answer

2000 Isuzu Rodeo - the fuel light comes on but it is full of gas - is the sendding unit bad or what might be the problem


yes the fuel sending unit will need replacing, faulty fuel sender unit will give the guage inaccurate reading.

Nov 02, 2009 | 2000 Isuzu Rodeo

1 Answer

Smog test will not pass


This code is send (in your case NOT SEND)
by the fuel sending unit.

Does your fuel gauge give incorrect of jumpy reading when it's full?

The quick fix is STOP TOPPING OFF the fuel tank when you are get gas.

Keep topping off will push the fuel tank float off it's sensor limit and eventually short or send OUT OF RANGE reading to the fuel gauge.

Fill your truck up to 3/4 tank full.

Drive it for 2-3 days or about 100 miles.
(this will fill the ready-ness data that DMV want)

If there is NO check engine light ON during the 2-3 days then give the smog test another shot.

DO NOT add fuel unit you complete the smog test.
===

The CORRECT method to fix your problem is to drop the gas tank and replace the fuel sending unit.

If you truck has over 140,000 miles on it then I will recommend you the change the WHOLE integrated fuel pump/fuel sending unit and fuel filter at the same time.

Jun 02, 2009 | 1999 Isuzu Rodeo

2 Answers

Can you tell me what p0463 code means on my 2005 Liberty


p0463 is a self diagnostic code that is for the fuel gage sending unit located inside the fuel tank if your fuel gage is reading empty just after you filled it then that verify's the code is correct you have a bad sending unit

May 31, 2009 | 2005 Jeep Liberty

2 Answers

Fuel Gauge reads empty, but tank IS full


the float in your gas tank seems to have water in it....water is heavier than gas, that's why gas floats on top of water....try putting something like HEAT in it to dry up the water in your tank....

Feb 03, 2009 | 2006 Isuzu Ascender

1 Answer

Gas gage constantly says full when it's not!


Unfortunately this is most likely the fuel pump module, which includes the fuel level sensor also. This should be diagnosed more thoroughly with a scanner, a good scanner will be able to check instrument cluster separately to confirm the gage is working right,and check for trouble codes that may not light any warning lamps. Hope this helps. Rate me please.P.S. Dont use that fuel station any more.

Jan 21, 2009 | 2002 Chevrolet Malibu

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