Question about 1992 Ford Aerostar Extended
Below is a guide to troubleshoot and check system function. This can be done by most folks.
Look at the front of the ac compressor and have someone turn on the ac from inside the car. The front of the pulley(clutch) will spin when turned on.
If it does not spin, the low pressure switch (LPS) is not satisfied. Meaning there is not enough freon in the system to operate the system. Means low freon capicity because of a leak.
The LPS can be jumpered to cause the compressor to run (clutch to engaged) which will draw the freon in the system.
The LPS is usually a two wire sensor on the suction of the compressor. (between evaporator and compressor) Unplug the sensor and install a jumper, this will engage the clutch. Connect a new can of freon
and fill to system capacity.
The capacity of the ac system will be on a label under the hood, do not overfill. Probably about 2 lbs. Local parts stores (Auto Zone and Advance) will have freon with stop leak. This may help the leak. They also make a freon with a UV dye. I always add a single can with dye so that if stop leak does not work I can find the leak in the future.
The system should be filled until suction pressure is about 30 to 38 psi..
Remember the flow for the a/c system is :
1. From the compressor a high pressure (HP) gas goes to the condenser in front of the radiator.
2. From the condenser a HP liquid goes to an expansion device (orifice tube or expansion valve)
3. From expansion device the low pressure gas enters the firewall to the evaporator.
4. From evaporator the low pressure liquid/gas mixture goes through the dryer back to the compressor suction.
Posted on May 29, 2010
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Posted on Jan 02, 2017
Yes it has a distributor.
You will see it easiest by removing the inside cowling. Now look up inside the engine compartment. When I replaced the Cap, rotor wires and plugs I actually removed the drivers seat. Its only 4 bolts and it gives you a lot more room. ( depending on your size) Its a little cramped up in there.
If you intend to replace the spark plugs you will need to remove the passenger side front tire to gain access. Its still not easy after that.
Posted on May 30, 2009
Check this procedure...
Posted on Jun 29, 2010
I dont think so, no. The transmission in the 4.0 L is a standalone tranny made by Ford. I BELIEVE that the 3.0 L engine uses the same transmission that is used in the Ford Ranger.
Posted on Jul 25, 2010
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