Lincoln Mark VIII - Recent Questions, Troubleshooting & Support - Page 3

h4 head lights are normally 55/65 watts head light brilliance is controlled by the condition of the reflector , the head light glass and head light alignment /aim with the fitment of relays you can get up to 65 /85 watt bulbs but if the reflector is plastic then it will melt with bigger bulbs

Dash lights go through the light switch, any aftermarket addons? old and new multi switch have no effect? usually if any ground issues is towards rear of vehicle.

it may be a shifter linkage issue. There is an interlock to prevent the car from bouncing out of park into reverse and if the linkage is not correctly adjusted, then it locks up.

On most cars, the pressure equalizer valve is located on a terminal block near the lower part of the front of the car. The terminal block, or manifold, is usually made of aluminum, and has many brake lines attached to it. It may be hidden from view behind a metal or plastic panel. I should like to tell you that replacing it will solve your problem, but please do not count on this. If you have the option, you might ask an honest person at a Lincoln dealership parts department how many pressure equalizer valves they have sold in the last year. Don't be surprised if he or she says "none". God bless your efforts.

Sounds like sticking thermostat. Replace thermostat if you see no leaks anywhere else. You need to drain out any bad coolant or water when you replace thermostat and refill with concentrated antifreeze until you have at least 50% antifreeze water ratio. You have to bleed the engine with new antifreeze solution so there's no air. I always go to youtube and see how mechanics do each engine bleed. Search your car and engine and `coolant flush'. don-ohio

Yeah... particularly the O2 sensors.. running rich ... weak and intermittent... Been there... Ultimately gave up a took mine to dealer. After floundering around (and seeing I had already been EVERYWHERE they were looking) for two weeks... They found one of the catalytic converters was collapsing blocking the exhaust... (jobbed it ou to a local muffler shop). I have still never identified an elegant way to diagnose this issue... Got to a point where it would not run... At that point (had I known) I would have liked to try to remove the catalytic converter at the header to see if it would actually run (CAN'T... one piece) Liquid wrench, & ear plugs would figure prominently in this process... ELSE do look up you muffler & cat prices BEFORE going to an EXHAUST SHOP ($$$$)... I figure I paid $1700 where a mere $700 would have been pricy (installed... I bet you can do better). 1994 LINCOLN MARK VIII 4 6L V8 Catalytic Converter RockAuto Carnac the Magnificent

BBB INDUSTRIES show 11 TSB (tech bulletins) on your fuel system... Merely reading thru them can give you exceptional insight to the elements & function sensors of the fuel system... Registration is required... (these are real documents) BBB Industries Premium Alternators Starters Power Steering Products

Go to LIncoln VS. Cadillac site and do a search on Mark VIII forum.. don

Yes, look behind the trunk liner on the passenger side approximately where the filler cover would be and you will find a wire rope with a plastic handle on the end. Pull it about an inch and your fuel filler door will pop open.

new springs need by the sound of it

You might want to try turning the climate control temp settings all the way down. Then turn the system OFF. Disconnect the negative battery terminal and let the car sit for 5 to 10 minutes. When time is up reconnect the battery and then start the car. Turn on the Heat/AC and adjust the temp setting. Sometimes this works on cars with computer controlled climate control systems. Good luck.

No small task. A lot to get out of the way and replace to access intake and gaskets. Expert with proper tools 4-6 hours

I couldn't understand your question. Can you please briefly explain.

coolant fan relay diagram

it is located at side of dash drivers side page 109 of your owners manual starts your fuse information the following link is the owners manual incase yours is unavailable 1998 Lincoln Mark VIII Owner Guide 1st Printing

There are several things that can cause these to fail in addition to a fuse. You need specialist knowledge to trace out the circuit and identify if it is the switches, power supply, wiring or control circuits. I suggest you take it to your local repairer or an auto electrician. I presume you have checked that the lock out switch is not on.