Air condition

[jeffie_3]

I have a 1990 Eddie Bauer Bronco. 302 4x4 Automatic. The air didn't work well ever since I bought it. A few months back I have a complete new system installed. When I run the air it looses power and soon over heats. Turn the air off and back to normal. Any ideas?

 

[Rons beast]

Hi Jeffie,

It sounds like you have a radiator problem. When was the last time the system was flushed?

Of course check the rad when cold and see that it's full.

Check the fan clutch for proper opperation also. It should have some drag to it when the engine is off.

If that is all ok, the most likely problem is a clogged rad.

Good Luck

 

[Bully Bob]

IMHO, the key here is "losing power"....?

Do you mean "NEW" new - or - new different, re-built,..?

Where did you get it.,what brand, who did it., does the A/C get cold..?

Can you here the compressor cycling..?

Does it overheat at speed, or just at idle.?

You may have a cooling sys. issue as well but, something's not right in these new A/C components.

 

[miesk5]

yo, As RON & BOB Advised;

this is from Ford for 96, but = to your year

Engine Overheats

Damaged water thermostat.

Damaged water pump.

Cooling fan inoperative.

Plugged radiator.

In the drive belts (8620) should also be examined for evidence of age and wear. Look for signs of cracks and fraying on the drive belts. Drive belt tension should also be checked. Drive belts showing signs of wear should be replaced.

Engine coolant hoses should also be visually inspected for evidence of age. Look for cracking, signs of collapsed hoses and squeeze the hoses to check for excessively mushy or soft hoses. Coolant hoses showing any signs of wear should be replaced

The FS-10 A/C compressor (19703) is used on all F-Series and Bronco vehicles.

An A/C clutch (2884) is energized when the A/C cycling switch (19E561), located on the suction accumulator/drier (19C836), closes. The closing of the A/C cycling switch completes the circuit to the A/C clutch and draws it into engagement with the compressor driveshaft.



When the A/C cycling switch is closed and the control ****/lever is set at MAX A/C, NORM A/C, or either of the settings calling for full or partial defroster operation, the A/C compressor will be operating. (A/C compressor operation during defrost is provided to minimize humidity in the passenger compartment.) The A/C compressor is mounted on the side of the engine and is driven by a drive belt (8620) . Tension adjustment is obtained by means of an automatic tensioner (gasoline engines) or by moving the compressor braces away from the engine (diesel engines).

GO to Pinpoint Test B.

Component Tests

Includes;

Cooling System Pressure Test

Specification Operating Pressure 13 psi; Min. Test Pressure 10 psi

Radiator Cap Pressure Test

Thermostat Test

Radiator Leak Test, Removed from Vehicle

Fan Clutch Test

Fan Clutch Specifications & Water Pump Test SpeedService

Coolant refill recommendations are 50/50 mixture of water and permanent coolant/antifreeze such as Ford Premium Cooling System Fluid E2FZ-19549-AA or B or equivalent meeting specification ESE-M97B44-A plus 1.41 (1.5 qts) of Heavy Duty Cooling System Additive FW-15 or equivalent meeting Ford specification ESN-M99B169-A.

Minimum acceptable coolant/water concentration is 45 percent antifreeze to 55 percent water. Maximum acceptable is 60 percent coolant to 40 percent water. Use only a hand-held refractometer such as Rotunda Battery/Antifreeze Tester 021-00046 or equivalent to check concentration.

In an emergency, ordinary tap water with a low alkali content may be used provided the system is drained and flushed and filled with the specified coolant/water mixture as soon as possible. Use only if that temperature is above 0°C (32°F).