need help with A/C
need help with A/C
Hello guys I got a 2000 ssei just rechared a/c system and my compressor is not coming on that it was low on freon that's why it wouldn't come on but it wasn't that checked fuse and relays swaped some around still will not come on I have no power at compressor anyone know water else I need to check am I missing anything thanks for help in advance
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mikeluscher159
- SSE Member

- Posts: 107
- Joined: Fri Feb 06, 2015 5:11 am
- Year and Trim: 2002 Bonneville SLE
Re: need help with A/C
...How did you charge the system without being able to turn on the compressor? All fuses and relays good? Clutch connector and pressure switch both plugged in securely?
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MKMike
- Posts like an L67

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- Year and Trim: 1993 SLE
1998 SE
2001 SSEI
2002 SSEI
Re: need help with A/C
If you had to recharge the AC then you almost certainly have a leak.
If it's a large leak, then all of the Freon could have leaked out again.
Assuming the refrigerant is still in the system----and you have the temperature set low enough on your electronic climate control---you also have a pressure sensor, mounted on the hose close to the compressor and your electronic climate control can also cut power to the compressor.
If the fueses and relays are good, then, as mikeluscher159 said, make sure the connectors are plugged in securely and look for corrosion on the contacts or worn-through insulation on the wires.
A service manual (ebay is probably the cheapest source or all-data DIY, perhaps) may give you step by step troubleshooting for the problem .
If it's a large leak, then all of the Freon could have leaked out again.
Assuming the refrigerant is still in the system----and you have the temperature set low enough on your electronic climate control---you also have a pressure sensor, mounted on the hose close to the compressor and your electronic climate control can also cut power to the compressor.
If the fueses and relays are good, then, as mikeluscher159 said, make sure the connectors are plugged in securely and look for corrosion on the contacts or worn-through insulation on the wires.
A service manual (ebay is probably the cheapest source or all-data DIY, perhaps) may give you step by step troubleshooting for the problem .
Re: need help with A/C
Mikeluscher159 I used a/c machine at work ND yes connector is good at compressor how can I check pressure switch to c if that is the problem I replaced climate control thinking that might be problem but no still the same thanks guys
- RJolly87
- Certified Bonneville Nut

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1994 Buick Regal Custom - Location: Las Cruces, NM
Re: need help with A/C
How much refrigerant did you pull out, how long did you pull vacuum, and how much refrigerant did you put back in? Also how much oil was added? I would throw a scanner on ut to see if the a/c is being commanded on and if not, why not.
~Randall~


1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place


1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place


