20 Most Recent 1999 Mercury Grand Marquis Questions & Answers

It should have 2, probably both on the exhaust pipe close to the engine

1999 Mercury... | Answered on Jun 26, 2019

u'd need a proper manual for this in my opinion
like there are plenty of dealers and online shops that deal in those..
you can get some free at reliable-store and it;s actually really illustrative

1999 Mercury... | Answered on Feb 20, 2019

Disconnect battery for about 5-10 minutes then see if your code has cleared. If you have access to a code reader that would be your best bet.

1999 Mercury... | Answered on Feb 17, 2019

My personal suggestion would be to go for t hese repair catalogs from www.reliable-store.com instead. much better language, complete manual of 800+ pages, and they also have live assistance feature

1999 Mercury... | Answered on Sep 07, 2018

check your fuses if they are all good your insturment cluster has gone bad.

1999 Mercury... | Answered on Feb 12, 2018

I know on my commodore it has a code that I can enter I need to access this by using the buttons on the dash that are used for checking fuel level till empty, distance to go, distance travelled etc.
Could be the same for you worth a try problem is you need the code for your car.
Most are factory set at 0000 but you only get a couple of goes.
Regards Craig

1999 Mercury... | Answered on Feb 01, 2018

Could be in the ignition switch. I'd try jiggling the key around and see if things change

1999 Mercury... | Answered on Jan 02, 2018

doubt it very much
the only gears in action are the axle spider ( spur gears ) and they turn very slowly on turns
pinion and crown wheel, noise are growls and whines depending if accelerating or costing and makes no difference if turning or straight ahead That should save you $ $1500.00 for a diff center that costs only $450.00
indicates wheel bearings or brake pads ( linings ) worn out and the callipers rubbing on the rotor ( drum)
I would be checking at the wheels and wheel bearings for the problem

1999 Mercury... | Answered on Oct 11, 2017

Check head gasket. Pull spark plugs and perform compression check? Check plugs for fouling. Check engine oil for water/antifreeze
Hope this helps?

1999 Mercury... | Answered on Jun 20, 2017

first swap to a front tyre to eliminate that issue

new bearing shouldn't be rumbling
to get the bearing square on and home
did you use a press to fit the bearing to the rear axle
or tube method ?

and did the seal kit have this nifty plastic seal fitter so axle didn;t rip the seal surface


1999 Mercury... | Answered on Apr 12, 2017

Check for an air leak in the fuel line.

1999 Mercury... | Answered on Apr 08, 2017

Wiper motors on this car are a very rare failure, so have you jumped 12 volts to the wiper motor and does it work or not, do that before you tear into it. The switch is the more common issue. Also the wiper motor can be tested with a Ford special scan tool called and "NGS", it runs the wiper motor through it's cycles by controlling the BCM..

1999 Mercury... | Answered on Mar 24, 2017

Not finding what you are looking for?
1999 Mercury Grand Marquis Logo

794 questions posted

Ask a Question

Usually answered in minutes!

Top Mercury Experts

gerry bissi

Level 3 Expert

4388 Answers


Level 3 Expert

85239 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

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

Answer questions

Manuals & User Guides

View Most Popular

Grand Marquis Mercury

  • Grand Marquis Mercury

Most Popular Question

99 grand marquis got p1299 code changed

  • Cars & Trucks