Question about 1983 Mercury Grand Marquis

2 Answers

Fuel guage doesnt work. ive tracked down all i can. Anyone got any suggestions. 1983 grand marquis 302 fuel inj

Posted by on


2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Mercury Master
  • 3,640 Answers

Open circuit - gauge will read full.Grounded circuit - the gauge will read empty. If it reads empty all the time - then the wire that goes to the sender is broken and/or grounded somewhere along its length to the fuel tank. run a jumper wire from bottom of the fuse box in the spot, all the way to top of sending unit on tank. disconnect old wire at both ends, and then turn on the key and observe guage. if not this, check guage itself for sticking.

Posted on Apr 29, 2010

  •  Scottie V
    Scottie V Sep 18, 2012

    Oh man, I don't know if you're still a member here at fixya or not, but if so, and you get this... THANK YOU. I recently fixed a wiring issue related to the wire loom that runs everything from the back of car (i.e. brakelights/turn signals, fuel sensor wire, reverse lights, etc), and fixing this happened to also fix my fuel gauge which had been stuck at as-full-as-possible. I was trying to confirm whether it was coincidence or actually something which may have been related, and the bit of info "Open circuit - gauge will read full" is exactly what I needed to know. Thanks a bunch!

  • carl Dec 17, 2012

    your welcome, and may god bless!


  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Expert
  • 64 Answers

Replace censor in fuel tank. Its at the front of the car so its a bit hard to get to but its there.

Cheers, Timo.

Posted on Apr 29, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1998 mercury grand margquis will not start

see if you get power and ground to the injectors

Aug 17, 2012 | 1983 Mercury Grand Marquis

1 Answer

Gas guage not working on 1987 grand marquis

No the fuel gauge is mechanical, it could be an issue with the sender unit or the wiring between the sender unit and the gauge

Mar 05, 2012 | 1987 Mercury Grand Marquis

1 Answer

1984 mercury marquis air conditioner wont cool think ive done about everything need suggestions

I had a 1983 Mercury Grand Marquis that had a leaky compressor that I changed. It worked for several years after that.

Jun 21, 2010 | 1984 Mercury Grand Marquis

1 Answer

1983 grand marquis mpg with the 302

If it is properly tuned, and the throttle body, choke setup is working properly, you should get 12-15 city and 18-20 hwy.

Jan 23, 2010 | 1983 Mercury Grand Marquis

1 Answer

Fuel line replacement on a 1994 MERCURY GRAND MARQUIS

bob go to a ford dealer and get a farctory gas line DO not take short cuts on this .ive seen many of them burn

Apr 17, 2009 | 1994 Mercury Grand Marquis

1 Answer

Power driver seat will not adjust forward or back.

My intuition tells me that the 6 way power seat track forward / reverse motor is bad. Sometimes you can replace just the one motor but most often a whole new power seat track is the only way to repair. It is not too bad to replace but the seat will have to be removed from the car and placed upside down to access the track assy. There are 2 bolts in the front of the seat and 2 bolts in the back of the seat that hold it down to the floorboard. Once it is loose you can rock the seat backwards to access and unplug the electrical connectors.

Aug 02, 2008 | 1996 Mercury Grand Marquis

Not finding what you are looking for?
Cars & Trucks Logo

304 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts


Level 3 Expert

76673 Answers


Level 3 Expert

5537 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides