Go Back   Infamous Nissan - Hardbody / Frontier Forums > Model Specific > Hardbody Forum (D21)

Reply
 
Thread Tools Display Modes
Old 08-17-2021, 02:50 AM   #1
Jason Bourne
 
Join Date: Apr 2021
Location: TX
Posts: 45
Vehicle: 1993 Nissan D21 2WD 2.4L MT
Thanks: 23
Thanked 4 Times in 3 Posts
Default Low Fuel Light Always On

I have only had the truck a few months but the low fuel light has always been a problem. The light is on all the time no mater how much gas is in the tank. The fuel gauge works fine it goes from empty to full according to how much gas is in the tank. Any suggestions on how to get the fuel light not to be on all the time?
Jason Bourne is offline   Reply With Quote
Old 08-17-2021, 03:01 AM   #2
LugNut1990
 
LugNut1990's Avatar
 
Join Date: Jul 2015
Location: N.E. Kansas
Posts: 838
Vehicle: 1990 Nissan Hardbody
Thanks: 0
Thanked 120 Times in 106 Posts
Default

Oft-used "solution": Put a piece of electrical tape over the lamp?
__________________
Original owner
1990 Nissan Hardbody, Aztec Red
Standard cab, 4x4, KA24E, 5-speed
Intentionally near-stock
Mods: Second OEM horn, stereo/speakers/sub,
mud and snow tires, HD trailer hitch (cat 3+),
liquid bed liner, G1W dashcam
Definitely not for sale!
LugNut1990 is offline   Reply With Quote
Thanked by:
89'HBV6 (08-17-2021)
Old 08-17-2021, 03:03 AM   #3
89'HBV6
Ol'school Geek
 
89'HBV6's Avatar
 
Join Date: Mar 2020
Location: Washington State / the Left Coast
Posts: 1,024
Vehicle: 89' D21 KC SE V6 5spd 2WD - 87' D21 KC SE V6 5spd 2WD
Thanks: 875
Thanked 231 Times in 212 Posts
Default

Sounds like you got a broken wire. Look @ the electrical schematics?

The light is on the instrument cluster, right? Could be a problem in the instrument cluster? Have you pulled it yet? Trace it back from there...
__________________
. . . Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/
Quote:
Originally Posted by Deerhurst
What he is saying is the aerodynamics of a D21 is a brick in the wind.
Probably at least as bad as a Jeep so worse than a cow.
89'HBV6 is offline   Reply With Quote
Thanked by:
Jason Bourne (08-17-2021)
Old 08-17-2021, 05:31 PM   #4
Reserector
the Flaming Marshmallow
 
Reserector's Avatar
 
Join Date: Oct 2015
Location: Laurel, MS
Posts: 1,907
Vehicle: Nissan HB KC 4x4
Thanks: 78
Thanked 518 Times in 405 Posts
Default

The only time my low fuel light ever worked was when the alternator was failing. One or two of the diodes in the rectifier had burned "open" allowing alternating current to flow and cause dash light anomalies.
Reserector is offline   Reply With Quote
Old 08-17-2021, 09:39 PM   #5
Jason Bourne
 
Join Date: Apr 2021
Location: TX
Posts: 45
Vehicle: 1993 Nissan D21 2WD 2.4L MT
Thanks: 23
Thanked 4 Times in 3 Posts
Default

Quote:
Originally Posted by 89'HBV6 View Post
Sounds like you got a broken wire. Look @ the electrical schematics?

The light is on the instrument cluster, right? Could be a problem in the instrument cluster? Have you pulled it yet? Trace it back from there...
The light Iím talking about is in the instrument cluster and looks like a gas pump. I did look at the electrical schematics, but I only have 1990 and 1994 FSMs. My truck is a 1993. The instrument cluster looks different on the 93 compared to the 90 or 94 so I donít think I can use either for a wiring diagram.

Anybody have a FSM or electrical schematics for a 93?

I havenít pulled the cluster yet. I was hoping to get a better understanding of the wiring before I pulled it. Iím not even sure what connector and pin on the cluster is for the low fuel light.

I think the broken wire theory may be correct. The light is on 95% of the time but every once in awhile it goes off.
Jason Bourne is offline   Reply With Quote
Old 08-17-2021, 10:17 PM   #6
89'HBV6
Ol'school Geek
 
89'HBV6's Avatar
 
Join Date: Mar 2020
Location: Washington State / the Left Coast
Posts: 1,024
Vehicle: 89' D21 KC SE V6 5spd 2WD - 87' D21 KC SE V6 5spd 2WD
Thanks: 875
Thanked 231 Times in 212 Posts
Default

OK, not knowing the differences... usually pulling the cluster is simple. My 89' is 2 or 3 screws, going up thru the bottom of the top of the cluster. (yea, that makes sense!) Look for them...

edit: This may, thought, just be the bezel. It's been so long since I was there. I do see there are 4 screws holding most of the 93' clusters I've seen online.

Also, I suspect it could be tied to the fuel gauge, somehow. Most of the gauges mechanics are in the tank, right? Trying to avoid going there. If this is the case, I suspect LugNuts suggestion might be totally valid! YMMV...
__________________
. . . Factory Service Manuals: https://www.nicoclub.com/FSM/Hardbody/
Quote:
Originally Posted by Deerhurst
What he is saying is the aerodynamics of a D21 is a brick in the wind.
Probably at least as bad as a Jeep so worse than a cow.
89'HBV6 is offline   Reply With Quote
Old 08-18-2021, 02:18 AM   #7
XoXSciFiGuy
 
XoXSciFiGuy's Avatar
 
Join Date: May 2017
Location: Yakima, WA
Posts: 3,265
Vehicle: 2009 Xterra, 1997 D21 King Cab XE (sold)
Thanks: 223
Thanked 649 Times in 587 Posts
Default

Bang on the gas tank with a rubber mallet near the fuel pump or wherever the low fuel connection is.

Not TOO hard.
__________________

2009 Xterra, 4.0 liter, automatic, 4WD. Need a technical manual? Drop me a message. Chilton's for amateurs.
XoXSciFiGuy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 07:16 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.