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Low pressure ac switch location
Here's the youtube link- TheBigDirty
- Post #37
- Forum: Engine & Drivetrain
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Low pressure ac switch location
There is one video on youtube. But other reviewers have described a similiar method... Removing the air bag to get to the connector, and cutting a hole somewhere in the evap box, top or bottom, dealers choice, to fish the new one in place, then plugging or patching the hole- TheBigDirty
- Post #36
- Forum: Engine & Drivetrain
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Low pressure ac switch location
I looked up the evap temp sensor, found it on Amazon for $24 & the best part is.... almost all reviews said it fixed their evap freezing prob Part number 15-51267- TheBigDirty
- Post #33
- Forum: Engine & Drivetrain
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Low pressure ac switch location
Ok so to summarize.... A freezing evaporator can be caused by several different conditions. A) Inoperable blower motor B) Clogged filter or clogged coil C) restriction in the metering device E) low freon charge F) improper compressor cycling There is no low suction pressure cutout...- TheBigDirty
- Post #32
- Forum: Engine & Drivetrain
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Low pressure ac switch location
Where have you seen it called a low pressure switch? Other than that service manual picture. That line runs from the compressor to the condenser. When the compressor is running, that line is hot. That tells me it is in fact a high pressure switch. If it were a low pressure switch, it would...- TheBigDirty
- Post #24
- Forum: Engine & Drivetrain
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Low pressure ac switch location
When I was first looking at this, I was pretty sure that I followed that line, with the pressure sensor in it, from the compressor to the condenser, which lead me to believe that it is a high pressure cutout. This is where Im so confused on this one.... the picture posted of the service manual...- TheBigDirty
- Post #22
- Forum: Engine & Drivetrain
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Low pressure ac switch location
I finally got a chance to look at mine again today, and according to the picture in that service manual, I did in fact replace the low pressure switch. What I maze of piping that I cant see down there. I woulda bet money on that being a high pressure switch given its location and the routing of...- TheBigDirty
- Post #19
- Forum: Engine & Drivetrain
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Low pressure ac switch location
Evacuation of the refrigerant is not necessary. There is a schraeder valve that closes off the system when the switch is removed. As stated though, you will get a little puff, possibly more if you take your sweet a$$ time unthreading the switch from the port. Only one switch is listed under ac...- TheBigDirty
- Post #18
- Forum: Engine & Drivetrain
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Low pressure ac switch location
I'm currently trying to figure out an AC issue in my 13 Tahoe LT... it acts as though a pressure switch is cutting off the compressor. Ive checked the charge. Its good. I cant find a low pressure switch. Usually it located on the suction accumulator, but there is not one. The only pressure...- TheBigDirty
- Post #5
- Forum: Engine & Drivetrain
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New to this forum
From Southeast PA. Not new to forum's but am new to this one. My wife's daily is a 13 Tahoe LT. I do not do any mods to her truck because, well, then that would leave less money for mods to my truck. So its pretty much bone stock. Bought it used in 14. Its been a good truck. No real issues...- TheBigDirty
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