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Confused about pressure readings

Bobby82490 on Thu June 26, 2008 5:31 PM User is offline

I took your guys advice and bought a MC gauge set instead of the HF gauge set.
Anyway i was trying out my new gauges on my '98 f-150 and my moms '02 Escape.

My truck: '98 F-150 with a 5.4l, ambeint temp was around 90
Low side-29psi
High Side-200-205psi

My moms 02 Escape with a 3.0l , ambient temp ranged from about 95-115 degrees depending on where you read it on the condensor.
Low side- 23-24psi
High Side-300psi
Vent temp- about 60 degrees (max a/c with doors closed)

These reading were with the doors open, normal a/c, and max blower speed. The engines were at 1500-1600rpms. Now on my truck the pressures look alright, but my moms car the high side looks pretty high? I'm a A/C newbie and im not sure what to make of these pressures.
Any help will be appreciated.

TRB on Thu June 26, 2008 7:13 PM User is offlineView users profile

Pressures are not too far out of line. Unless she is complaining about the cooling I would not mess with it.


When considering your next auto A/C purchase, please consider the site that supports you:

Bobby82490 on Thu June 26, 2008 8:01 PM User is offline

It doesnt cool very good, I would say the A/C is "cool" at best, nowhere near cold... like it was when we first got it.

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