Gas gauge

Asked by Mar 13, 2013 at 05:02 PM about the 1987 Nissan 300ZX 2 Dr GS 2+2

Question type: General

When the fuel tank is full the gauge is measuring it right but once it goes below 1/2 tank the needle
drops all the way to empty.  The only way I know it still has fuel in it is by the mileage.  I have people
tell me that I need to fill up when I have just driven it 100 miles.

3 Answers

90,985

Sounds like a bad sender, the sender is just like a rheostat with segments that tell the gauge how many ohms for different fuel levels, sometimes those segments get dirty or simply wear through and then the gauge looses the signal. Hope this helps.

2 out of 2 people think this is helpful.
96,215

Running around with less than half a tank for twenty years has worn a hole in the resister windings. Reset the trip odometer when you fill it up so you know how many miles you have gone.

1 out of 1 people think this is helpful.
105

I concur. It is your sending unit.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • temp gauge question 2 answers

    The temp gauge on my 91 keeps jumpimg up & down. When I get on the gas & I'm running at 3000rpms the temp needle goes to cold & stays there. When I let off the gass it goes to the middle showing regul...

    1991 Nissan 300ZX

    -

    General

  • my 300zx dosnt want to accelerate 11 answers

    My 300zx dosnt want to accelerate. When I put it in first gear and start to drive it lags and dosnt wana pick up speed fast enough. plzz help!! that would be much appreciated thanks

    1990 Nissan 300ZX 2 Dr 2+2 Hatchback

    -

    General

  • speedometer and tach not working on y 1986 300zx turbo. could it be a relay or fuse.if not what should i check 3 answers

    instrument cluster doesnt work,speedometer,gas gauge,tach. what should i check?

    1986 Nissan 300ZX 2 Dr Turbo

    -

    Maintenance & Repair

  • 95 300zx fuel needle drops car wont start? 3 answers

    car was driving ok last night. Had 1/4 tank gas now this morning while trying to start fuel gauge needle drops all the way and car wont start????????

    1995 Nissan 300ZX 2 Dr 2+2 Hatchback

    -

    Maintenance & Repair

  • Instument Panel 2 answers

    Found a good buy on an '85ZX. No rust, excellent shape and only 32,500 miles on it. Gas gauge only works about a1/2 hour when first turned on in the morning but then goes completly out after the car w...

    1985 Nissan 300ZX

    -

    Maintenance & Repair

300ZX

Looking for a Used 300ZX in your area?

CarGurus has 129 nationwide 300ZX listings starting at $3,995.

ZIP:

Search Nissan 300ZX Questions

Nissan 300ZX Experts

#1 Tom Demyan
Tom Demyan
Reputation 440
#2 Jamie Staples
Jamie Staples
Reputation 280
#3 dandyoun
dandyoun
Reputation 240
View All

Related Models For Sale

Used Ford Mustang
388 Great Deals out of 47,511 listings starting at $1,800
Used Toyota Supra
39 listings starting at $47,888
Used Chevrolet Camaro
147 Great Deals out of 32,614 listings starting at $1,729
Used Chevrolet Corvette
99 Great Deals out of 20,456 listings starting at $3,495
Used Mazda RX-7
50 listings
Used BMW 3 Series
957 Great Deals out of 33,572 listings starting at $1,000
Used Nissan 200SX
12 listings
Used BMW M3
38 Great Deals out of 1,687 listings starting at $4,544

Used Cars For Sale

1996 Nissan 300ZX For Sale
9 listings starting at $3,995