Automotive Air Conditioning Information Forum

For several reasons, I recommend replacing the condenser. Tim at ACKits.com, this Forum's sponsor, can supply the best part at the right price.

This ! Condenser has been mangled.



Ensure that the radiator is in good shape, too.

This; and make sure all the electric fans behind the radiator ...

It turns out that it was just a loose V belt haha, I guess that sometimes it's bad to overthink a problem and it's better to just begin with the simple things and the basics.

Thank you very much for your answer.

See what I posted earlier about my feeling that the shorter belts work better for ...

I actually have a 1998 and a 2004 Frontier with that same engine. I also once had to remove an AC clutch shim to lessen the air gap on my 1998.

1. Check tension of the AC belt

2. Is there such noise when the engine is running and the AC switched OFF?????????

3. I'd pull off the AC belt, and ...

Great !!!



Changed the temperature sensor to one with a different range, 34-43F (rather than the kit supplied 24F low range)

I'm not an AC professional, but 24F did seem too low, condensation would freeze.

The "de-icer" thermostat switch on my '88 Mazda truck is specified to shut off the ...

Open hood, start engine, turn on AC, and visually observe whether the AC clutch drive plate (the center disc of the AC clutch) is spinning at the same rate as the AC clutch pulley and AC belt. Report back.

Note if drive plate is essentially stationary.

I received my gauge set yesterday. Gonna measure this weekend. Does a low pressure on the high side indicates a bad compressor? And how can I measure if the expansion valve needs replacing?

Measure both low and high side pressures at about 1800 - 2000 rpm when running AC a few minutes. Post ...

I installed the original 195°F thermostat and with this water temperature, the air being drawn through the radiator gets much hotter and the bimetal spring of the fanclutch actually goes on full blast.

If the cooling system does not do the job, a colder thermostat does not help, its just ...

In 2014 I bought a brand-new compressor from this board's sponsor, for my 1988 truck; compressor came with PAG oil - tested a drop of the oil at work. Since I was staying R-12, I dumped out all the PAG oil out the low'/high ports, added a few oz. R-12-type mineral oil, turned the compressor drive ...

What most likely happened is you had what is called ‘seasonal’ losses from the comp shaft.
The correct approach would have been to have a pro shop use their RRR machine and pull out what refrigerant was left. Then have them install the correct amount, which is usually on the under hood sticker ...

I think I'm a little overcharged at this point but the high side is only 10-20 psi high . It still cut out at highway speeds. I jumpered the low pressure switch and now it cools properly at highway speeds.

You mean 10-20psi higher than where you think it should be? Jumping a switch except for ...