Question about 1994 Lincoln Mark VIII

2 Answers

Mark VIII overheating

I need help. I have a car that overheats. It will not cycle the water through the engine. I have replaced the thermastat, water pump, both looked super clean. I have flushed the radiator, no clogs there. The fan kicks on as usual. The car has full power. No water leaking, no moisture at the exhaust. What could it be? I was told a possible heater control box but I don't know where that is or if this could cause the system from cycleling the antifreeze.

Posted by on

  • 1 more comment 
  • Rhopper1964 Apr 20, 2009

    The old thermostat looked perfect before replacing. The new one cannot be put in backwards, doesnt fit. The belts are run correctly. The water in the overflow bottle is cold when the engine is super hot and gauge is pegged hot. The engine is overheating and knocks when the heater is turned on. I think there is very little water in the engine now that the thermostat and water pump were replaced and no water is cycleling back into the engine.

  • Rhopper1964 Apr 21, 2009

    I took off the bleeder valve cap located on the top water hose in the front of the engine. I ran the car at idle to get the air out of the system. I then filled the system up with antifreeze through this valve cap and replaced it. System is running fine and never had a problem with a bad thermostat or water pump. I guess from the car sitting for months this air pocket occured. Thanks for all the help guys you are terrific. Rick

  • Ray Keckeisen May 11, 2010

    does the car really overheat or is the light or gauge saying so,the heater will not cause overheating, check when the engine is hot that the radiator does not have any cold spots,get back to me and we'll try some other tests. Ray

×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Lincoln Master
  • 599 Answers

Did the radiator check out ok, if it is ok then you might have an air lock in the cooling system, try loosening the coolant sensor or remove it while adding coolant engine should burp large air bubble then start to ake more coolant, how much have you put in, get back to me if you still need help, i strive for the best Ray

Posted on Apr 20, 2009

  • Ray Keckeisen Apr 21, 2009

    Thanks Rick for the reply,if you need any help in the future just lok me up and i'll try to help, i beleive if you do good things for other people good will come back to you GOOD LUCK Thanks Ray

×

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,263 Answers

The only thing you haven't replaced is the heater core, however even if that was plugged your engine still would not overheat because the heater core is on a by pass hose. my question to you is was the theromstat installed correctly? is the belt that rtuns the water pump routed correctly so that tyhe pump is turning the direction it should. these may sound like stupid questions but have know to happen. the sring part of the thermostat should face towars the intake of the engine if it is installed incorrectly it will cause no circulation of the coolant.like wise with incorrect routing of the belt if the water pump is turning the wrong way no coolant will circulate like it should. what can also happen is the replacement pump and/or thermostat were deffective. there is a such thing is the term "brand new junk" I can't tell you how many times i have replaced parts just to find out that they were deffective. my advice is to look over these area's again. if all is in order feel free to contact me here just click my user tab

Posted on Apr 20, 2009

  • Ronald Mueller
    Ronald Mueller Apr 20, 2009

    when the engine is hot is the upper radiator hose hot? if so that means the thermostat has opened. if there is a a bubble in the system more than likely it's because of the bypass to the heater core. to get rid of this bubble lock turn your heater on high fan and high temp keep the radiator cap off during this and run the engine this will help with the situation and burp the coolant system. if all the componants are new and there is no clogged radiator or heater core then the system will burp by doing this

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1995 Lincoln Mark VIII OVERHEATING after 2 thermostat s in a week.?


You need to find an honest Joe!! My first thought is get the rad checked. Any good mech would know how. It should be hot at the top half and cooler below, but even spread across the whole rad. You don't say if its forcing water from the header tank? If it is then its possible a head gasket has gone. If its been maintained but the coolant hasn't been flushed and replaced every 2 years then its likely the main rad is partially blocked. There is no ready cure for this despite a lot of additives and theories, the only sure way is to replace the rad. Is there no good DIY neighbour who could help? I understand your fears about some dealers but if in doubt take your DIY neighbour with you so they will behave.

Jul 17, 2014 | 1995 Lincoln Mark VIII

3 Answers

What causes ny 2005 sangyong musso suv overheating engine problem


Maybe rust blocking radiator. Pull the radiator pipe off the bottom and flush it. Otherwise might have minor gasket blown. Hot gasses heats the water up. Use antifreeze (gives water a higher boiling point so makes driving a bit safer on the engine (wont seize if water is not boiling))

Jun 02, 2014 | 2005 SsangYong Musso Sports

1 Answer

I have replace the thermastat and water pump and the heat still is not working properly


what anti freeze did you put in it and what level is it at if its low it will do that and if there isnt enough water with antifreeze it wont warm up enough

Dec 05, 2010 | 1995 Lincoln Mark VIII

1 Answer

My fan belt ripped a week ago as i was going to work i didnt realize what it was so i drove it like that to work and as soon as i got to work the temp when all the way up i put the belt on got a new...


Check to see if your oil has water or water has oil in it.does your coolant level go down while it is overheating?If any apply it has a blown head gasket.

Sep 14, 2010 | 1996 Lincoln Mark VIII

1 Answer

Overheating problems


Yes it needs a thermostat. What size engine?

Jun 07, 2009 | 1996 Chevrolet Cavalier

2 Answers

Temperature control


The radiator cap is at the radiator where you refill the radiator with coolant. Unless it is leaking and you hear a hiss. It may not have anything wrong.Neither will the water pump.If the water pump is bad. It has a small hole that will make it start leaking .Check the engine for leaks at the intake or the water pump.You will know where it is leaking. When the thermostat was removed and hopefully replaced , did you bleed the system ? The system has to be bled to remove air pockets. Or the engine will overheat again. Also check that the radiator fan or fans is turning on . If not you may need to replace the temperature control sensor.(TPS)

Feb 20, 2009 | 1996 Lincoln Mark VIII

1 Answer

Overheating problem


If the fans are electric fans, check or replace the fan electrical circuit and fan relay.

If fan is driven off the water pump, through a clutch, replace the clutch. Just because it turns, does not mean it has failed.

Feb 10, 2009 | 1994 Lincoln Mark VIII

1 Answer

Overheats while driving stops when still cuts off


What EEC IV engine control trouble codes do you have? sounds like you have a mechanical problem, run a cylinder compession test and have the engine tested for a blown cylinder head gasket.

Dec 02, 2008 | 1994 Lincoln Mark VIII

Not finding what you are looking for?
1994 Lincoln Mark VIII Logo

885 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lincoln Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

fordexpert

Level 3 Expert

5537 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a Lincoln Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...