Question about 2003 Ford ZX2
Relays for air conditioners are normally close to the thermostat and tx valves
the problem amy not be with the fan but with the ac compressor not turning on from lack of gas
tell him to check for leaks or take it to an accredited ac shop and have the job done properly
Posted on Apr 18, 2017
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Posted on Jan 02, 2017
You need to check two things for Ford A/C:
1) Verify that the proper levels of old/r134a are present, you can do this your self it takes only a cheap gauge and a thermometer, you will need to check both the low and high side pressures.
What you are looking for is that both sides read what they should for the ambient temp outside, at 95F it is around 42 on the low side and 275 on the high side.
2) Make sure the A/C clutch is kicking in.
Most problems are going to be ring leakage that causes low fluid levels, or a hole in the dryer that does the same thing. If you have proper levels and the clutch is still not locking in and turning the compressor and you do not have the tools or knowledge to start replacing parts take it to a shop and have them look at it.
If you want to post the results of the above test I will try to help more.
Posted on Jul 14, 2008
the idle air control valve is responsible for engine idle.
this is a common failure on ford's. but I don't think yours is bad because it does idle high befor it dies.
you stated you had codes p0171 and p0174 these are lean codes for bank one and two, you said you found a vacuum leak and repaired it, the vacuum leak was mostly likely the cause of the lean codes, however the pcm has calibrated the fueling stategy for this lean mixture, what you need to do is erase the KAM "keep alive memory" this is done by unhooking the negative battery cable for 60 seconds, this is the only way to erase the KAM the $6000.00 machine I use wont even do it.
once the KAM is clean the computer will go into a relearn state and all operating values will be adjusted for the vehicles current condition, during this relearn session the vehicle may have some driveability issues (low or high idle, stalling, poor fuel economy) the relearn should complete within 10 minutes of idling and then 10 minutes of driving.
good luck and keep me updated
Posted on Jun 14, 2009
there is usually a relay block (black in color) either on the right or left side under the hood, and in front of the wheel well. Don't discount the possibility that you may have a bad pressure switch on the line. That is a safety device that is now installed on most all vehicles. If you turn on your defrost, you should hear the clutch on your AC clicking on and off. If you do, there is another issue. If you don't, then listen for a faint clicking. This is a small relay so it maybe very hard to hear, even if you found it. You many actually have to lightly put a finger on the relay cube to see if you can feel it clicking. If this is clicking, but the AC is not kicking in and out, replace the relay. If this is NOT clicking with the defrost on, then it is not being told that it is ok to. This may be the pressure switch that drops out if the freon is too low, or too high.
Posted on Aug 14, 2009
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