Check Owner's Manual.
If you do not have one.
Check Related links below.
I tried all the tricks of backing up and putting it in neutral and park and other things but finally I disconnected the battery and it reset the system. worked for me on my 1998 navigator.
To reset the AC in a 1998 Cadillac Eldorado, start by turning off the engine and then disconnect the negative battery cable for about 10 minutes. Reconnect the cable and start the engine. Next, set the climate control system to the lowest temperature setting and the highest fan speed, allowing it to run for a few minutes. This process can help reset the climate control system and restore proper function.
5W-30 ( according to the 1998 Lincoln Navigator Owner Guide )
No the gage has no effect on firing. An engine that is overheating will misfire.
According to the 1998 Lincoln Navigator Owner Guide : ( " regular " unleaded gasoline , 87 octane )
On a 1998 Lincoln Navigator : The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
On a 1998 Lincoln Navigator : The ELECTRIC fuel pump is INSIDE the fuel tank ( it goes in from the top side of the tank )
According to the 1998 Lincoln Navigator Owner Guide : ( " regular " unleaded , 87 octane gasoline is used )
On a 1998 Lincoln Navigator I believe it is in the front passenger footwell ( it might be behind an access panel )
According to the 1998 Lincoln Navigator Owner Guide : ( .052 to .056 inch spark plug gap ) * confirm with the Vehicle Emission Control Information ( VECI ) decal in the front of your engine compartment
You can view the 1998 Lincoln Navigator Owner Guide online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
shut off the speedtronic limiter with the button at the end of the cruise control stalk