20 Most Recent 1998 Mercury Grand Marquis - Page 4 Questions & Answers

Usually means that headlights are loose (most obvious/cheapest fix) but could be intermittent short where headlight wire is shorting to chassis ground (Visual and multimeter to find short). It could also be telling you that the alternator maybe going bad.

dead short.most of the time its the dome light or in the door jam on the drivers side just under the foot plate. check around the screws that hold the foot plate in place.

YES AND THEY CRACK AND LEAK,THEIR ABOUT 280 AT PARTS STORE.

this is common with cars unless you start the engine where it goes of immediately. Maybe 15 minutes is excessive but in that case check your lighting module for serviceability.

if the key is manual , you will need a locksmith to reset the wafers inside the ignition. also try spare key first. if key is electronic, you will need to plug in computer. some cars have a system linking gear to ignition, eg on some mercs

its a fuse

There is a motor on the blend door that may have went bad and needs repaced this can be accessed by dropping the glove box. It is behind it.

Did you check both fuse boxes

Could be overheating or could be fuel related, have you tried getting it checked for trouble codes stored in the computer?

have you checked the oil levels blue smoke is oil typically piston rings/ vavle seals depending on severity and condition of vehicle u should weight all options. give us more info. how much of a lose of power and how much smoke when did this start is there any check engine lights is there over heating ect ect

Could be the key switch or the linkage to the lock cylinder, or the chip in the key if equipped.

Heater core! Check for air in the cooling system. If air is trapped in the heater core, then it will not get hot.

It may be the battery is going dead. try putting a jump box or jumper cables and try again. good luck