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Oldsmobile Forum: AC Charging Question - Newby
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  #1  
Old July 3rd, 2017
rah4736 rah4736 is offline
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AC Charging Question - Newby

Folks....Anyone know where the AC "Low Pressure Switch" in located on a 99 Alero? I know where the Hi & Low ports are for filling purpose, but I can't find anything that shows the location of the Low Pressure Switch, so that I can try jumping it to get the AC Compressor to kick on. HELP
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Old July 3rd, 2017
Cutlass350 Cutlass350 is offline
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If you're going to keep your car more than 3 more seconds, then
I very strongly suggest that you buy, *now*, a GM Dealers Service manual for your car!
Get them on ebay. If they are $300, they are still a bargain.

Then again, screw it! Buy a new car for $50K+ , and get screwed every year on taxes and insurance. And, forget about going to dealer and coming out with a bill less than $500.



http://www.wholesalegmpartsonline.co...rimLevel=25560





Part #22 from the above:

http://www.wholesalegmpartsonline.co.../95018104.html

SENSOR. AIR CONDITIONING (A/C) Electric Temperature and Motor Control.
Part Number: 95018104 ; 1551289; 15-51289; 22664328; 96448991
This fits your 2000 Oldsmobile Alero

SENSOR,A/C REFRIG PRESS(09.178)(ACDelco #15-51289). SENSOR,A/C REFRIG PRESS(ATTCHS TO 27001722 A/C COMPRESSOR TUBE)(09.178)(ACDelco #15-51289). SENSOR,A/C REFRIG PRESS(ON HOSE)(09.178)(ACDelco #15-51289).

Your Price $ 33.74






Last edited by Cutlass350; July 3rd, 2017 at 04:37 PM.
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  #3  
Old July 3rd, 2017
rah4736 rah4736 is offline
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Thanks.....

But....I'm looking for the Low side "switch"....not the Temp Sensor.
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Old July 3rd, 2017
Cutlass350 Cutlass350 is offline
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Ebay search:
Dealers Service manual Alero

https://www.ebay.com/sch/i.html?&_nk...Alero&_sacat=0
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  #5  
Old July 4th, 2017
rah4736 rah4736 is offline
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Wow....

Whoda ever thought, that the location of a '99 Alero Low End Pressure switch was "Top Secret". Apparently it'll take a hired "Lobbyist" to get through, or it's simply a "pay to play" scenario. &

Thanks....I'll try somewhere else.
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  #6  
Old July 5th, 2017
RamaRamone RamaRamone is offline
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Man, were you able to find the "Low Pressure Switch" already, rah4736? Happy hunting, friend!
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  #7  
Old 1 Week Ago
Trish Trish is offline
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way late to the thread but my AC compressor clutch won't kick on if the pressure is too low. After a winter of not using AC the system will take over half a can before the clutch kicks on.
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