1989 Ford F-150 Fuel Guage problems - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto EscrowInsurance

Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel Forum for discussion of the Ford F100, F150, F250, F350, Superduty and Diesel trucks.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 11-06-2011, 04:06   #1 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 4
1989 Ford F-150 Fuel Guage problems

I have a 1989 F-150 XLT Lariat 4x4 and my gas gauge won't work. If I turn the ignition switch off and press the brake pedal, it runs the gauge all the way up until pegged; but when I turn the switch back on, it runs it back down to empty. Does anyone know what the problem could be?
smokeybones is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-06-2011, 04:41   #2 (permalink)
Moderators
 
Join Date: Apr 2007
Location: Scotland
Posts: 9,081
Re: 1989 Ford F-150 Fuel Guage problems

Check earths / grounds and wiring at tank unit .If not that test tank unit .
R.S.LOGAN is offline   Reply With Quote
Old 11-06-2011, 08:52   #3 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 4
Re: 1989 Ford F-150 Fuel Guage problems

tank unit was good when I tested it. I couldnt find anywhere that the brake wires and fuel pump assembly wires were in close proximity. Do you think it could be behind the dash or under the hood?
smokeybones is offline   Reply With Quote
Old 11-06-2011, 09:10   #4 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,658
Re: 1989 Ford F-150 Fuel Guage problems

What does the gauge do if you don't step on the brake right after you turn the key off? Can you step on the brake anytime the key is off and have that happen?
__________________
Bert
Bert is offline   Reply With Quote
Old 11-10-2011, 17:26   #5 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 4
Re: 1989 Ford F-150 Fuel Guage problems

yes, any time i step on the brake pedal when the switch is off it still causes the gauge to go up.
smokeybones is offline   Reply With Quote
Old 11-10-2011, 19:21   #6 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,658
Re: 1989 Ford F-150 Fuel Guage problems

When you use the turn signals do the arrow indicators light up? How about the hazards. When did this start?
__________________
Bert
Bert is offline   Reply With Quote
Old 11-11-2011, 03:01   #7 (permalink)
Moderators
 
Join Date: Apr 2007
Location: Scotland
Posts: 9,081
Re: 1989 Ford F-150 Fuel Guage problems

No earths / grounds on dash wiring ?
R.S.LOGAN is offline   Reply With Quote
Old 11-17-2011, 07:38   #8 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 4
Re: 1989 Ford F-150 Fuel Guage problems

the truck was like this when i got it. the guy said he put a new radio in it and the gauge stopped working.
smokeybones is offline   Reply With Quote
Old 11-17-2011, 08:21   #9 (permalink)
Moderators
 
Join Date: Apr 2007
Location: Scotland
Posts: 9,081
Re: 1989 Ford F-150 Fuel Guage problems

Pull the radio out and see how he wired it up , May have taken an existing and used earth / ground for set , wont know till you check .
R.S.LOGAN is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 00:51.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.