My truck cools ok except when it is really hot outside and at idle.
With an outside temp of 74 the low side pressure is 42 and the high
side pressure is 115. Do these pressures sound correct?

Nope.

Of cours, "correct" depends on a lot of different things.

Christopher A. Young
Learn more about Jesus
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"stryped" wrote in message
...
My truck cools ok except when it is really hot outside and at idle.
With an outside temp of 74 the low side pressure is 42 and the high
side pressure is 115. Do these pressures sound correct?

"Stormin Mormon" fired this volley in
:

Nope.

Of cours, "correct" depends on a lot of different things.



Don't encourage the troll, Stormy.

Lloyd

stryped wrote:

My truck cools ok except when it is really hot outside and at idle.
With an outside temp of 74 the low side pressure is 42 and the high
side pressure is 115. Do these pressures sound correct?
What refrigerant? Those sound possibly OK for R-12, a bit low
for R-134a. Does it have a sight glass on the receiver?

And, idling on a very hot day may just be too much heat load and too
little RPM for the system.

Jon