Question about 1996 Lincoln Mark VIII
Ok this is a good one, we can not figure out. Im manage a auto repair shop and I own a 95 mark viii lsc, I was driving one day and it just started to run real hot, the light came on that the engine was getting to hot, and I shut the veh. off. I checked the coolant and it was full, drove back to my shop with the heat (aprox. 4 miles) on and the temp. went back to normal. Since that day (2 weeks ago) we've put in 3 thermostates, water pump, radiator. The fans come on and off like they should, we did a check for a blown head gasket, and it does not show one, and the engine runs as powerful as it always. we pressurise the cooling system, and it holds press like it should. I sent it to friend who also has a auto repair shop to see if they can find anything we might have missed, he also did a carbon test and no blown head gasket, and put another thermostate in it and still runs hot. It will run hot, but if i turn on the heater it will go back down to normal. Please help! here we are two weeks later, and still no answers, I dont want to sell my car, because I really like it, its in great shape (other then the heating thing) it has 134,000. miles on it. We also though that maybe there was air in the system but we used a tool that ford gave us to use to get the air out and... still over heating --- Thank you for your help Debeee
How is the problem with your mark? Has it been resolved? Is it physically overheating or does it just look like its hot? Have you swapped the sending unit for the coolant temp gauge?
Posted on Nov 11, 2008
Those cars are notorious for air pockets, make sure all of tha air is out of the cooling system! I have had three marks myself, anytime i did cooling work i would slighty raise front of vehicle up (jack or lift) remove crossover tube plug along with coolant cap, fill anti freeze thru crossover tube until coolant starts to fill tank on left side behind battery, let stabilize for 1min or so continue filling, when full replace cap on tank, start engine(idle) heater on 90, continue to fill crossover until full, replace plug, cleanup test drive, let set for 45 min check coolant at tank to insure it is full
Posted on Mar 13, 2009
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Posted on Jan 02, 2017
You have a problem with your blend door actuator. Every year, twice a year, my husband manually moves the blend door actuator and puts a tie wrap on it so it will stay in either the heat or cool position. You can reach this through the glovebox, which you will need to remove. I had this fixed at the dealer once long, long ago - very expensive because the plastic piece that needs replacing means they must remove the seats and the whole dash area including the steering wheel to properly replace what is broken. If you want to see how that is done go here: http://www.mechanixtrix.com/Article/Article.aspx?ArticleID=145 Much easier going through the glovebox.
Posted on Dec 28, 2009
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