Question about 1997 Lincoln Mark VIII

2 Answers

So, re: 97 Mark VIII, Thermo, coolant sending etc....all done seems Gd. Fan kicks on but ...when it's hot weather the car runs real bad like no power/ gonna blow up.

Posted by Monique Elwell on

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2 Answers

stephen peirce

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  • Lincoln Master
  • 1,882 Answers

Good answer from Mike try checking your spark plug gap also is this engine overheating feel the top hose for heat and boiling inside if so when the engine is cool check the coolant inside the degas bottle if it is reddish brown or a greenish or tan gritty residue there's stop leak in the engine and you must get this out because it clogged everything up and it will make the engine temperature very high which will burn up the fuel air mixture causing the engine rpms to raise making it run even hotter and the cooling fan/s will constantly keep coming on with in 30 seconds of the last time also the transmission fluid will be burnt causing the tranny to slip and need more gas pedal to move =higher engine temperature

Posted on Aug 22, 2019

  • Monique Elwell
    Monique Elwell Aug 28, 2019

    Also very good answer. Some parts seem familiar. Enuff to chk out. Thanks Stephen. I had all fluids & filters chk'd & thusly changed just after car came to me. It was needed! But I have experienced some of this I.e. granny occasionally having a " slip" or hesitation . very intermitant & slight but I notice. & minor on other u touched o & not some. Ill C. Back attcha later.

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Mike Duffy

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  • Lincoln Master
  • 992 Answers

If you're sure the engine is running cool enough check the fuel pressure, low fuel pressure can vapor lock if the engine is hot enough the gas will boil. The boiling point of 87 octane is 181 degrees Fahrenheit although gas is constantly being returned to the tank in order to cool the fuel rail low pressure will not return enough leaving room in the rail for gas to boil. Ignition coils are also known to break down when hot. I hope this helps. Take care.

Posted on Aug 21, 2019

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5 Related Answers

alicantecoli

Colin Stickland

  • 22485 Answers

SOURCE: Car loses power and switches off on hot weather

weird this one??dealer for diagnosis i think as could be anything from low fuel pump pressure to air flow meter or temperature sensor in air intake.

Posted on Dec 20, 2008

John Bloomfield

  • 534 Answers

SOURCE: I have a 2003 VW Jetta 1.8t that is overheating.

Assuming engine tune / mechanical condition is not the cause of the overheating:-
Ensure cooling fan is cutting in at the appropriate engine temperature - check operation of the fan controlling relay,
Ensure fan switching control temperature sensor is serviceable,
Ensure cooling system is filled properly, taking care to bleed out air where necessary,
Ensure coolant pressure cap is of correct rating and in serviceable condition,
Check coolant hose on suction side of waterpump is not softened and collapsing at engine revs above idle,
Ensure radiator core is not blocked or cooling airflow inhibited by insects etc.

Posted on Aug 11, 2009

Anonymous

  • 13 Answers

SOURCE: 2002 malibu runs hot.

Sounds like you have a faulty head gasket or maybe a cracked head.This can cause overheating and the check engine light to come on.The code for the o2 sensor is probably caused by coolant getting into the exhaust system and coating the sensor.The coolant fan may work but it cannot remove enough heat from the rad to make the engine cool off.Try some engine coolant stop leak to see if it will help.This maybe only a temperary fix.Let me know if you need more.MOE

Posted on Jun 22, 2010

Mr BrokRench

Mr BrokRench

  • 1623 Answers

SOURCE: my fan isn't blowing in my 98 lincoln mark

Radiator fan or AC blower motor? The blower motor will have a fuse and a relay. The radiator fan is controled by the Variable Relay Control Module and temp sensor.... the module is located behind the grill---hope this helps.

Posted on Jul 12, 2011

jeepguyracin

Bill George

  • 2517 Answers

SOURCE: coolant temperature sensor?????

I was thinking maybe water pump or something clogged

Posted on Mar 12, 2017

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1 Answer

I have a 1996 S10 which runs hot sometimes red lining. I have checked or changed every possible part or reason. any thoughts here??


Bad coolant thermostat. Faulty thermo fan sender switch. Thermo fan motor burnt out. Bad thermo fan relay. Radiator core blocked. Low coolant level. Temperature gauge and/or gauge sender faulty. Ground leads have a bad connection (corroded/broken/fouled from oil and grease/bolts or screws loose)

Sep 26, 2018 | Cars & Trucks

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Cooling fan runs intermittently and causes the engine to run hot


The cooling fan isn't causing the engine to run hot, it's electrical and cannot heat an engine. It is turning on in response to your engine running hot. Check coolant level and age, if it's still running hot then check the thermostat - it could be stuck closed. If the thermostat is fine and coolant level is full, it could be partially clogged radiator or head gasket problem (a sure sign of bad head gasket is that your coolant keeps disappearing with no leaks).

Apr 02, 2014 | 1998 Lincoln Mark VIII

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I have a 97 Cadillac eldorado and although the temp gage doesn't read hot, it sometimes floats a little over the 1/2 way mark. seems really hot. You can smell coolant and the top big radiator hose doesn't...


If the temp gauge periodically rises higher than normal and then falls back to normal, you probably need to change the thermostat as it may be sticking shut and then popping open. It's a good time to change some hoses, coolant and check the belts if they've been on the car for awhile.

Sep 09, 2013 | Cars & Trucks

1 Answer

I have a 97 Eldorado. It used to loose coolant. But that is fixed by tightening a hose clamp. But it seems to run hot even though the gage is on half way mark. Just the feel of the hoses (hot and very...


the thermo fan's won't start or the gauge won't read at all depending on what you mean by therm sensor. They should feel hot and tight. Running temp is 80-90 deg C on standard street vehicles and cooling system pressure should be around 15 psi

Sep 06, 2013 | Cars & Trucks

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I have changed the radiator and thermostat and water pump and it keeps running hot


THEN U MOST LIKELY HAVE A LEAKING HEAD GASKET, VERY COMMON PROBLEM ON THIS V8 NORTHSTAR ENGINE.

Nov 12, 2009 | 1998 Cadillac DeVille

3 Answers

My car is running hot then cool, it seems to run hot when I use the heater and run cool when I use the AC, is this a problem with the thermostat?


When the car is completely cool,check the electric fan(s) for smooth rotation.

Clean/check/change the thermo sensor,contact and wire.

===

Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.

===

MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!

RAN THIS TEST IN A WELL VENTILATED AREA ONLY!

You will spill some coolant during this air pocket purge test.......BEKIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!

===

Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat2_bing.gif open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.

If you do not see any in rush of bubbles then your thermostat may bepartially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

If you see larger bubbles surfacing after 15 minutes then should do ahydrocarbon (HC) dye test to test for potential head gasket leak.

Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost

===

A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

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Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

Oct 19, 2009 | 2002 Mazda 626

1 Answer

I have a 2003 VW Jetta 1.8t that is overheating. Replaced the thermostat, temp sensor, water pump. Fan will run when AC is on, but haven't had it running in hot enough weather to see if the cooling fan...


Assuming engine tune / mechanical condition is not the cause of the overheating:-
Ensure cooling fan is cutting in at the appropriate engine temperature - check operation of the fan controlling relay,
Ensure fan switching control temperature sensor is serviceable,
Ensure cooling system is filled properly, taking care to bleed out air where necessary,
Ensure coolant pressure cap is of correct rating and in serviceable condition,
Check coolant hose on suction side of waterpump is not softened and collapsing at engine revs above idle,
Ensure radiator core is not blocked or cooling airflow inhibited by insects etc.

Aug 11, 2009 | 1996 Volkswagen Jetta

1 Answer

Temp guage runs in the red! 93 mark VIII 135K miles


has the water pump been changed recently? The water pump on a 4.6L 2v and 4.6L 4v look the same but are different

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2 Answers

1995 Lincoln Mark VIII LSC - Overheating


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?

Oct 14, 2008 | 1996 Lincoln Mark VIII

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