1997 Mercury Grand Marquis - Answered Questions & Fixed issues

Have you tried turning the AC on? Generally works with the AC on.

My speedometer isn't letting me know how fast I'm going, help please

Pictures in the link. Text articles and also on the images tab. https://www.google.com/search?q=1997+Mercury+Grand+Marquis+V8+firing+order ..

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The problem is most likely the contact ribbon under the steering wheel, it has a broken printed circuit ribbon to the horn button, it is referred to as the "Clock Spring Contact Drum"

What kind of vehicle is it year ,make ,model please

You need to replace the window regulator.

When you say it wont start, it wont crank even a little bit? any clicking? i would look for an issue with the starter if the wires are getting hot, you could have a corroded ground wire which would cause a backup of electricity making the wire hot(simply put)

You may have a bad connection where the battery grounds to the frame and/or engine. Check the cable running from the negative battery post to where it bolts to the car. It should be clean and very tight - no corrosion. If you can see the connection, watch it while someone tries to engage the starter. See if it sparks, or starts to smoke or glow a dull red. If so, the connection needs to be cleaned up very well.

use flex joints and extension bars to get back to a place where you can use a ratchet or bar

Fix your car right away, by clicking the link 1997 Mercury Grand Marques Workshop Service Repair Manual

there should be a 'legend' on fuse box cover identifying locations specific to your model.blown fuses are readily identified when removed & inspected. after market radios usually have an 'inline' fuse on the power supply wire as well.

Could be a leaking hear core or hose that goes into the core.

the lock isnt turning the back part which is the contact switch,use a screwdriver to turn it off or disconnect the battery. I think the problem lies in the barrel is got a piece broken that goes from the barrel to the contact switch .Without seeing it myself i couldnt tell you whats wrong or why the barrel has come out but their is a small hole in the case where you can push in to remove the barrel but in all honesty ask a local mechanic to have a look for you as this mat be beyond the average hme mechanic to sort out also their is a security reader that reads the chipped key callled a transponder so a local mechanic who knows what hes doing is your best best .Sorry if this appears a negative answer but as stated i would need vehicle in front of me to diagnose the correct repair.

When you say the fuel pump relay is good did you test for power to the relay circuit ?

If sound comes from under the dash, it might be an hvac actuator that is having a problem? Sometimes you can put your hand on it and feel the vibration? Sometimes with a relay, you can do the same thing.

Sway bar bushings or something similar.

Must be in the key switch . Logically any way hi Gary how are you. Frustrated I bet , sorry for your woes man electrical problems are tough and sometimes for myself Even though I have a masters in electrical. Lets see Gary I'm only speculating but when you roll the switch to the on position only this should close the contacts in the switch and provide power to all accessories , widows , lights on dash and other switched components . Also this will close the start circuit sending 12 v + to the coil or ignition system and is now waiting for the crank circuit when you roll the switch forward to turn over starter. So try this , if you roll the switch back to the accessories position you are primarily doing the same thing as rolling it forward in first position EXCEPT minus the start circuit. Roll it back and see if you have all power to other components , ie windows, wipers , lights . If so then your switch is faulted . It's worn or the contacts are burned out and is reason for not starting motor because no continuous 12 v to ignition system . REPLACE SWITCH . ...,.. I HOPE THIS HELPS . let us know in the comment box . We all can learn from results one enters ....... Best to Ya man ..........,A. G.

Defective head unit?

the fuse connected the circuit that was faulty and probably blew again check the fuse and find where the wiring is dead shorting to ground