Question about 1997 Chevrolet S-10 Pickup

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I have an 1997 s-10 blaz.er the a/c works sometimes and sometimes not.It has all new switches high and low pressure.The compressor cyles to fast on start up.It seems to stop right about the time it starts to get cool at the accumulater.The longer the car runs the longer the cycle starts to run.I am fixing to replace the accumulater and the orfice

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The Accumulator only dries the air,if it even works,separates some oil going to evaporator and starts to boil off some gas before the orfice. So basically it never fails,forget that. The orfice won't be real dirty,unless you had a compressor or o-ring failure.
The short cycling is low ref.
The longer cycling is more heat or btu's over the evaporator.
So--Put the gauges on it and look at cycling pressure.
--Electronic Leak Test it
-- If you have to,pull a vacuum and recharge.

I'll bet your compressor clutch end seal leaks as well as a hose or two
It is 13 years old!!

Posted on May 06, 2010

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Posted on Jan 02, 2017

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1 Answer

Where is the low pressure cycling switch?


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Now some systems use an air blend valve under the dash to regulate the A/C temperature with the compressor operating almost constantly. Other systems cut off the a/c compressor to work intermittently to keep the extreme cold from happening and helping to regulate temperatures.

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