20 Most Recent 1999 Mercury Grand Marquis - Page 3 Questions & Answers

your anti theft device is activated,you need to lock and unlock your doors a couple times with the key fob,not the key,and then you need to put the key in the ignition and start it,if you dont have your key fob,call your car dealer to get a new one,they are programmed for each car only,you cannot bypass it.

you remove the 2 bolts going to the top of the motor where the radiator hose connects to and the thermostat is right there if you need more than that google for images

You open the hood, Disconnect the battery, Jack the front of the car up high enough for you to fit under it. Put blocs or jack stands under it to replace the jack, never work under a car that is still sitting on the jack, Go under and disconnect the two wires from the starter ,then the blots holding on the starter. Remove the old put in the new.

1999 should still be 5 quarts, newer ones required 6 quarts. I would add 5 check then then add the 6th if it does not show as proper amount of oil on dipstick after 5.

I would guess that one of the wires to the ignition switch or the switch itself is intermittent. Replacing ignition switch will likely fix it.

I was going to say you had a short from the fuse to the relay. But since you have to play with the other relays, replace the fuse panel. Only thing is the harness goes with it. You can repair it with patience. Remove the battery and alternator cables on the side. Look down the side you will see two clips, release them and pull the panel up. There are several clips to release to get the bottom off. Repair what you see burnt.

Check the current draw on the starter when it is cranking the car. If it is excessive it mans the starter is dragging the field with the armature because the bearings are worn out. If the current is not excessive to the starter then it is likely a short in the power cable circuit somewhere.

The fuel pump relay is in the powerbox on the drivers side of the car. It can be in a relay trio which is hung behind the powerbox and has a slide out access to the relays inside or it can be inside the big powerbox. Usually the cover has the relay name and position embedded in the plastic.

there's not much in the way diagrams of this but there many dash removal videos online this wont be easy at all .

On the side of the throttle body level with the butterfly shaft.

Probably the difference of regular shocks and air shocks. Look at the rear shocks, if you see a plastic line running to it, It is air. But you don't have to replace them with air, you can put regular ones on it.

If is the original key fob, you may need to reprogram it

They usually work or don't, there is no in between for those parts. They are epoxy filled so the only thing that they sometimes do is crack, Rainbow colors on the coil are signs of high energy leak, this takes a skilled eye most of the time...use a magnifying glass, it will help. That's about all you can do to them. If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_4c166ba81493f541

If you are not confident you can get it back together, don't take it apart. That being said..You could buy a manual. If you have a library card you can search Oplin Research Database. Go to the car repair reference center and enter your type of vehicle. There will be an option for repair information. Do a search.. Or you could just unplug anything necessary, vacuum lines, wiring. Loosen any nuts, bolts, fasteners, etc. holding the intake on. Replace any gaskets you disturb. Might be a good idea to check on a gasket kit in advance. Remember what you took off and put it back on in reverse. If it is broken replace it. Hope this helps..

Bad ECM, bad wire from the ECM to the instrument panel, and a bad motor for the temp gauge.

DID YOU PRESS YOUR ALARM REMOTE TO DISARM THE SYSTEM OR DOES THE CAR START IF NOT DISCONNECT THE CABLES AGAIN AND THEN RECONNECT WHEN THE ALARM STARTS (YOU MAY NOT HAVE A HORN)FLASHING LIGHTS PRESS THE DISARM BUTTON ON THE REMOTE AFTER THAT SET YOUR CLOCK IF THIS DID NOT HELP BEING MORE SPECIFIC WILL I'M NOT THERE WITH YOU

knock sensor located on the 1999 Mercury Grand Marquis GS Google Search