orifice tube location 93 Chevy S-10 - AC Auto Repair Help Forum


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orifice tube location 93 Chevy S-10

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comnavguy
User

Jun 11, 2008, 8:07 AM

Post #1 of 4 (13975 views)

orifice tube location 93 Chevy S-10	Sign In

Can anyone tell me the location of the orifice tube in a Chevy S-10 Blazer with the 4.3L engine ?

Thanks in advance.

way2old
Veteran / Moderator
way2old profile image

Jun 11, 2008, 4:36 PM

Post #2 of 4 (13969 views)

Re: orifice tube location 93 Chevy S-10	Sign In

Here is a picture. It is located in evaporator line (number 5). It is bach by the accumulator (number 6). You will see a connector there. It is located in that line below the connector.

Being way2old is why I need help from younger minds

comnavguy
User

Jun 12, 2008, 12:06 PM

Post #3 of 4 (13960 views)

Re: orifice tube location 93 Chevy S-10	Sign In

Thank you so much. I could not find this picture in either Haynes or Chilton.

I may have a question or two later. This system was "converted" MAYBE. The only thing I know for sure is that someone put R-134 Hi and Low ports on the lines. They didn't replace anything else. No label either.

There was zero static pressure, so the compressor would not come on. I'm going to start with flushing the system, replacing dryer, replacing orifice tube and "O" rings and generally troubleshooting system. When I "jump" the compressor, the clutch kicks in.

Thanks so much for your help and picture.

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 12, 2008, 3:01 PM

Post #4 of 4 (13958 views)

Re: orifice tube location 93 Chevy S-10	Sign In

"O" tube may show damage if clogged up. Don't forget a well held vacuum before the charge up,

T

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