Question about 1995 Oldsmobile Aurora

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Where is the fuse for the cooling fans? And is there some kind of a relief valve to let out trapped air from the cooling system after a coolant change?

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  • 344 Answers

The fuse should be in the fuse block in the engine compartment, Ther e is a relay all so that could be defective,, As for the coolent there is no release (Vavle ) for it,

Posted on Nov 29, 2012

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SOURCE: 1993 cutlass supreme run hot

A common problem is that the electric fan will not operate. You need to determine if the fan is coming on when the vehicle gets warm.

When you replaced the coolant, were you sure that you got all of the air out of the cooling system? If you have any air in the system, it will cause your system to run hot!

Regards

Brian

Posted on Sep 06, 2008

  • 14036 Answers

SOURCE: 2002 olsmobile alero w/ 3.4 litre engine overheating

replace thermostat . before putting in a new one.remove both hoses on radiator .flush out radiator then your block where thermostat go .remove the hose to water pump. use garden hose .dont turn it on too high. just enough to get the rust and gunk out of block.flush at the top where thermostat go.watch the water . from your water pump. it look dirty .keep flushing until you see clear water and a good flow not a tiny flow .make sure your water is too high. also change coolant sensor. this should help i had the same problem.

Posted on Mar 17, 2009

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2 Answers

2002 Chrysler Concorde 2.7 L overheating, changed, thermostat, water pump, air intake gasket and still overheating


When you changed these components and refilled the cooling system, did you purge the air out of the top of the system by opening the bleeder valve. These engines have coolant in areas higher up in the engine where air can be trapped during refill. Air trapped in the system will cause overheating issues. Otherwise, the only thing you haven't mentioned in the system is the radiator and fan assemblies. They could be suspect, as could a possible blown head gasket.

Oct 24, 2015 | 2002 Chrysler Concorde

1 Answer

1999 Oldsmobile slihouette heat doesn't get hot in the front


your heater core is not circulating..this could be because you have air trapped in your coolant system or your heater switch is not opening the valve to allow flow through your core. the front core is located higher than the radiator...so its hard to purge any air that gets trapped in it. personally...I installed a purge valve so I can expel any air from the higher parts of the cooling system....because I also had the same problem with my 2000 premier. but first try to purge your system of any air pockets by turning on your heater.....fan on high......let the vehicle warm up....add some distilled water or dexcool to your coolant tank.....rev engine to 2500rpm for a brief moment.....let idle for a moment and repeat 5 or six times....make sure to turn on the rear heater too at full fan when you do this. if this doesn't help....read up on your vehicle by means of chilton or other published repair manuals ...then check the engine heater switch for proper vacuum and electrical supply when your console control is on for heat (heater switches on the engine - located over each of the valve covers-one for front-one for back-with metallic tubing into side and out of bottom).....be careful...the heater switch on the engine will be very hot!! check relay in fuse box...check fuse in fuse box....check switch and vacuum supply to console control unit.....good luck and be careful....

Feb 12, 2014 | 2002 Oldsmobile Silhouette

1 Answer

When i leave my grand vitara on idle it pumps all coolant out of the rad into over flow bottle


Is your cooling fan coming on? Make sure that it is. If not check fuses, relay and fan. The fan should come on and draw air through the radiator to cool the coolant if this isn't happening then the vehicle will overheat and as the coolant expands in an effort to relief the pressure the valve on the radiator cap will allow coolant to exit the radiator and go into the reservoir. This would be a good time to service your thermostat and change the radiator cap

Jan 19, 2013 | 1999 Suzuki Grand Vitara

1 Answer

Where can is the cooling system bleeder valve located?


Automotive cooling system has no bleeder valve. Removing trapped air (bleeding) from the system is done by loosening the upper radiator hose with the engine running, and letting some coolant to ooze out. If the coolant coming out already has no bubbles with it, then you already expelled out the trapped air. Simply running the system with out the radiator cap will also do the trick.

Oct 23, 2012 | 2005 Nissan Sentra

1 Answer

Ac cools for about 5 min has right level of freon took it to mechanic said it has head pressure of 450 sets off the pressure relief valve


WHEN HIGH PRESSURE RELIEF VALVE OPENS YOU HAVE TOO MUCH REFRIGERANT IN THE AC SYSTEM OR OVERHEATED CONDENSOR,THE COOLANT FANS NOT WORKING,COULD HAVE BAD COOLING FAN RELAY OR BLOWED FUSE.THE ENGINE COOLANT TEMPERATURE SENSOR FAULTY NOT TURNING ON THE COOLING FANS TO COOL ENGINE CONDENSOR OR RADIATOR COOLANT.

Jul 23, 2011 | 2003 Mitsubishi Lancer

2 Answers

REPLACED MOTOR AND STILL OVERHEATING WHAT'S THE PROBLEM? CAR HAS NEW RADIATOR


Did you replace the fan? How about the fan switch?

Here is some stuff to read about this system....please let me know what's up!


This switch is the primary controller of the operation of the radiator fan(s) used for cooling. When the coolant in the system reaches a pre-determined temperature, the fan switch closes and completes a circuit. The fans will be brought on. Generally, the switch communicates with the fan relay, although the later PGM-FI cars send the signal through one of the many solid-state controllers first. Do not assume that the switch is the only component in the radiator fan circuit which controls its operation. There are many other components whose failure may prevent the radiator fan from operating. If the fans are not working when the engine is very warm, check the fuses first.
On all vehicles except 1990-95 Accords and 1992-95 Preludes, the fan switch is located in the bottom of the radiator. On 1990-95 Accords (except V-6) and 1992-95 Preludes, the switch is located in the housing at the rear end of the coolant connecting pipe. This is the pipe running along the outside of the engine, just above the oil filter. The switch the only electrical component in the housing. On the Accord V-6, it threaded into the side of the coolant crossover pipe (not next to the bleed bolt) on the transaxle side of the engine.

Nov 19, 2009 | 1991 Honda Accord

2 Answers

2004 intrepid running hot


Possibles.
1. Failed Water Pump..... Separation of the Impeller and Drive shaft, or coolant leak from the Pump body gland, or associated hoses in the Cooling system
2. Clogged External Radiator Core..... This can be a common problem, dependant on geographic location. Dirt, Straw, etc, gets trapped in the core tubes reducing the Air flow.
3. Failed Electric fan Power supply. Check Main services Fuse box for blown fuses on the A/C fan and Main engine fan. Again lack of through air flow will cause overheating.
4. A Main Fuse Box services supply MAXI fuse has Blown.
5. The Temperature sensor that operates the Engine fans has failed. This unit completes the circuit to the relay in the Main Fuse Box that energises the fan motors.
6. Fill cooling system, leave pressure cap OFF, run engine and look for excessive air bubbles while air is purged out of the system. Keep topping up until coolant overflows, then run up to normal operating temperature, top up as required, and the fans should start up.

ALTERNATELY, AFTER TOPPING UP COOLANT AND WITH THE ENGINE RUNNING, set the controls to MAX A/c and Blowers on Full speed, after the A/C compressor has cycled for about 30 seconds, the A/c condenser fan should start up to cool down the Freon in the System and at the same time operates both fans. If this has no effect go back up the check list, and systematically eliminate each phase.
HOWEVER, if it is none of the above, then you may have originally "Cooked" the engine, and warped the "Head" or "Perforated the Head gasket.

Best of luck with your endevours,
Regards, DT.

Aug 23, 2009 | 2004 Dodge Intrepid

1 Answer

Where do i refill coolant? message reading low engine coolant.


please rate, thx Coolant Recovery System NOTE: When the water thermostat (8575) is closed, there is no flow through the radiator coolant recovery reservoir (8A080).

Trapped air in the cooling system must be removed. A pressurized radiator coolant recovery reservoir system is used which continuously separates the air from the cooling system.
  • When the water thermostat is open, coolant flows through the small hose from the top of the radiator outlet tank to the radiator coolant recovery reservoir.
  • The radiator coolant recovery reservoir separates any trapped air from the coolant and replenishes the system through its radiator coolant recovery hose to the water thermostat housing.
  • The radiator coolant recovery reservoir serves as the location for:
    • service fill
    • coolant expansion during warm-up
    • system pressurization from the pressure relief cap and
    • air separation during operation
  • The radiator coolant recovery reservoir is designed to have approximately 0.5-1 liter (0.53-1.06 quarts) of air when cold to allow for coolant expansion.

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Jul 08, 2009 | 1995 Lincoln Continental

1 Answer

My 2001 lincoin ls gauge goes up to the h and then come back down


you probably have air trapped in the system. Have dealer or radiator shop bleed system.

I assume your cooling fan is working.

what engine v6 or v8?

SECTION 303-03: Engine Cooling 2001 Lincoln LS Workshop Manual
DESCRIPTION AND OPERATION Engine Cooling The cooling system components include the:
  • block heater (optional)
  • cylinder head temperature sensor
  • fan blade, fan motor and fan shroud assembly
  • radiator
  • pressure relief cap
  • degas bottle
  • radiator draincock
  • water pump
  • oil cooler (optional)
  • water thermostat
The water thermostat:
  • controls the engine coolant temperature.
  • allows quicker engine warm-up.
The degas bottle:
  • provides a location for system fill.
  • contains coolant expansion and system pressurization.
  • provides air separation during operation.
  • replenishes the engine coolant to the system.
The fan blade draws air through the radiator to help cool the engine coolant.
The fan motor:
  • operates only when the engine is running.
  • will not operate when the engine is off.
The engine coolant flows:
  • from the lower radiator hose to the water pump.
  • from the water pump to the engine block and the cylinder heads.
A closed water thermostat returns the engine coolant to the water pump. An open water thermostat allows the engine coolant to flow to the radiator.
Unsatisfactory coolant materials:
  • Alcohol-type antifreeze does not provide adequate water pump lubrication.
    • has lower boiling point
    • reduced antifreeze protection
  • Alkaline brine solutions will cause serious engine cooling system damage.
The cylinder head temperature sensor provides a signal to the temperature gauge.
  • will invoke failsafe cooling.
The optional block heater:
  • electrical heating element is installed in the block cooling jacket.
    • uses a standard 110V (220V in Europe) electrical supply
  • keeps the engine coolant warm during cold weather.
The auxiliary water pump (3.9L only):
  • provides heater coolant flow boost.
  • has a secondary function of providing engine-off cooling.

May 01, 2009 | 2001 Lincoln LS

3 Answers

Overheating and no hot air from heater.


Leave rad cap off when starting from cold, turn heater(not defrost) on, and top up coolant in rad as you go, to about an inch or 2 from top of rad. Let engine run with cap off until your rad fan comes on & off 3 or 4 times. Every once in a while, rev engine slightly for 5-10 seconds to help bleed air out faster. After about 3 or 4th time fan comes on, you should be o.k. to put cap back on all the way & fill bottle to proper level. Heat should be there now. Give it a try & let me know how it goes.

Mar 29, 2009 | 1998 Ford Contour

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