Best Answer

Possible key cylinder is bad, you have the wrong key, you have a very worn key are the first things that come to mind. Try another key. Try to pull clockwise or counter clockwise on the steering wheel and turning the key at the same time.

User Avatar

Wiki User

โˆ™ 2007-08-17 01:59:22
This answer is:
User Avatar

Add your answer:

Earn +5 pts
Q: Why would you not be able to turn the key in your 1989 Mercury Grand Marquis?
Write your answer...

Related Questions

What is the weight of a 1989 Mercury Grand Marquis?


Can you get A diagram of PCV valve location in 1989 through 1999 Mercury Grand Marquis?

Yes, a person can get a diagram of the PCV valve location in a 1989-1999 Mercury Grand Marquis. This diagram would be located in the maintenance books found in auto part stores.

1989 Mercury Grand Marquis computer location?

left side of dash

What is the gallon tank size on a 1989 Mercury Grand Marquis?

( 20 U.S. gallons )

Where can you find a wiring diagram from the fuse box for 1989 Mercury Grand Marquis?

at the junk yard

Engine oil capacity 1989 Mercury Grand Marquis?

According to my Chilton's Auto Repair manual : For a 1989 Mercury Grand Marquis : With engine oil filter change : Both the 5.0 / 302 and the 5.8 / 351 take ( 5.0 U.S. quarts )

Where is the starter solenoid on the 1989 Mercury Grand Marquis?

its on the passenger side front near the front tire

Where is the power steering fluid reservoir in a 1989 mercury grand marquis?

It is part of the power steering pump assembly.

Why are the Mercury Grand Marquis 1989 turn signals flashing too fast. Is is the flasher unit .?

I have a 1996 Grand Marquis. If one of the brake lights goes out the signal on that side flashes faster. I would check the brake/tail lamps.

How do you access door opening mechanism inside door panel on 1989 Mercury Grand Marquis?

Follow the Youtube instructions.

Where would the fuel filter be located on a 1989 mercury grand marquis?

If you don't see it under the hood, then look under the car just in front of the rear wheel.

Where is the starter solenoid located on a mercury grand marquis?

The starter solenoid is located (in a 1989 mercury grand marquis), as you raise the hood, on the left hand side of the engine compartment. Just behind the battery. (you should be standing right in front of the passenger side headlight.)

Why the turn signals are not working on 1989 Mercury Grand Marquis?

it is either you have a shor in your wiring or you have a loose connectoin or you need a new relay

Where is the transmission dipstick located on a 1989 Mercury Grand Marquis please?

On a 1989 Mercury Grand Marquis : The automatic transmission fluid level dipstick should be in the engine compartment , near the firewall ( the metal wall that divides the engine compartment from the passenger compartment ) just towards the passenger side of the vehicle ( where the rear of the engine connects to the transmission )

What would cause the headlight switch on an 1989 Mercury Grand Marquis to keep going out where as the headlights come on but the tail and dash lights don't and the fuse is good?

it's your headlight switch

How much horsepower does a 1989 mercury grand marquis have with stock 5.0?

About 150, up to 190 hp with an all-round tune-up.

What is the fuel tank capacity of a 1989 Mercury Grand Marquis LS?

My manual says fuel tank capacity is 19.0 gallons (71.9L).

What is the fuel tank capacity for a 1989 Mercury Grand Marquis 5 liter?

( 20 U.S. gallons ) according to my Chilton's repair manual

Can you hitch a trailer on a 1989 grand marquis?


1989 mercury grand marquis will not start it will turn over has fuel to injecter but no spark ignition?

pre-heat spark plug, if this works then replace it.

Where is the glove box light bulb located in a 1989 mercury grand marquis?

It may not have one but if it does of course it will be located somewhere inside the glove box.

Wiring diagraphm for 1992 mercury grand marquis?

Wiring Diagrams Ford Crown Victoria/Grand Marquis 1989-1998 from AutoZone DIY

Why do you have no heat in your 1989 mercury marquis?

because heat core was removed?

Where is the fuse box located on a 1989 Mercury Grand Marquis?

removable panel under the steering column, there's two big black screws that come out

Mpg of 1989 Mercury Grand Marquis ls?

15 mpg city, 22 highway for a combined average of 18 mpg. (Data published by the EPA)