Computer cuts AC rather frequently - Ford Mustang Forum
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post #1 of 2 (permalink) Old 06-27-2018 Thread Starter
Joined: May 2011
Location: New Braunfels
Posts: 30
Computer cuts AC rather frequently

Ok itís an Ď88 NA 2.3 5spd, I understand itís under powered lol but itís almost impossible to keep the ac cold unless Iím idling or some how able to stay at exactly the same throttle position on the highway etc, Iíve noticed my 95 f150 (I6&5spd) will cut the ac when Iím going full throttle, balls to the walls, but I feel like FoMoCo wouldnít have sold a vehicle that cuts the ac this much, it is a convertible, maybe they expected you to have the top down 24/7? But seriously does any one have some insight on this issue?

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post #2 of 2 (permalink) Old 06-29-2018
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Joined: May 2012
Location: Napa
Posts: 619
Over time, parts like the A/C compressor will start to wear internally and even if the refrigerant pressure is still good, you will notice poor performance from your A/C system.

You also have to consider the evaporator and condenser as well. As the condenser ages, the fins will start to decay and will show signs of build-up (white powder). These things are common on any older car, but relatively inexpensive to fix for you, because you have Fox Mustang.

I recently replaced the evaporator on my 93' and the A/C won't freeze me to the seat, but it does keep me cool on hot days. Had I put down a few more bucks for a condenser, I might be a bit cooler still on these hot summer days.

On the HP issue, 2300's can make tons of power if you apply the right parts to them. At a minimum, you can advance the timing on your 88' and gain a few more HP.

One last thing, you might want to change the A/C pressure switch out for a new one as it could also be the source of the problem.

89' Mustang convertible, high compression N/A 2.3.

85' SVO under s l o w deconstruction.

93' hatch currently under development

Last edited by ohc230; 07-03-2018 at 01:46 PM.
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