I just installed an AC compressor on my 2007 Chevrolet Impala and it does not work what can be wrong?

5

Asked by Sep 07, 2015 at 07:45 PM about the 2007 Chevrolet Impala LS

Question type: Maintenance & Repair

One month ago I replaced the AC compressor in my car. Everything worked
fine for the past month. Today I replaced the expansion valve in the system and
now the AC does NOT work. I've checked in-line filter, exchanged the
expansion valve with the old one, the system holds a vacuum but will not
charge and does not cool. What can be the problem?

3 Answers

16,790

Going to the accumulator is the high pressure switch you can not miss it because it has two wires going to it unplug the switch and put in a jump wire in the connector this will by pass the switch and allow the compressor to come on charge system and once charged remove jump wire and plug back into switch it will since freon is in the system and keep running. The reason the compressor is not coming on the switch sensing there is no freon in system and by doing what I suggested will allow you to put freon in system.

5

Thank-you for your timely response. I have not yet tried this suggestion all tools and facilities being at a friends garage. We had the system running for the first month, then when we reclaimed the 134 we replaced the valve going into the firewall. The compressor seemed to engage at that time while we were trying to charge the system...would the low pressure still cause the switch to NOT allow us to charge the system fully?...

16,790

System is not going to charge instantly as long as compressor is clicking on and off it is changing. When compressor clicks on turn the can of freon up side down this will charge with liquid letting freon in system much quicker then turn can back to up right position when it clicks off continue doing this until compressor constantly stays on then it is full. If compressor not click on follow directions in first answer.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Impala

Looking for a Used Impala in your area?

CarGurus has 36,377 nationwide Impala listings starting at $1,800.

ZIP:

Search Chevrolet Impala Questions

Chevrolet Impala Experts

#1 Danny Wang
Danny Wang
Reputation 1,570
#2 Js08016
Js08016
Reputation 1,480
#3 FordNut
FordNut
Reputation 1,380
View All

Related Models For Sale

Used Chevrolet Malibu
1,116 Great Deals out of 79,186 listings starting at $2,495
Used Dodge Charger
547 Great Deals out of 28,747 listings starting at $2,275
Used Honda Accord
1,200 Great Deals out of 78,037 listings starting at $969
Used Chrysler 300
520 Great Deals out of 20,718 listings starting at $1,500
Used Nissan Maxima
414 Great Deals out of 25,152 listings starting at $1,500
Used Dodge Challenger
434 Great Deals out of 25,170 listings starting at $7,980
Used Chevrolet Tahoe
1,064 Great Deals out of 32,231 listings starting at $1,495
Used Buick LaCrosse
414 Great Deals out of 20,564 listings starting at $1,495
Used Nissan Altima
1,129 Great Deals out of 85,763 listings starting at $695
Used Toyota Camry
1,482 Great Deals out of 100,777 listings starting at $700
Used Ford Fusion
1,223 Great Deals out of 72,693 listings starting at $1,295
Used Chevrolet Silverado 1500
2,600 Great Deals out of 149,097 listings starting at $1,800
Used Ford Mustang
724 Great Deals out of 38,313 listings starting at $1,750
Used Ford Taurus
349 Great Deals out of 22,303 listings starting at $1,499

Used Cars For Sale

2017 Chevrolet Impala LS For Sale
3 Great Deals out of 1,459 listings starting at $19,441
2016 Chevrolet Impala LS For Sale
39 Great Deals out of 1,023 listings starting at $14,999
2015 Chevrolet Impala LS For Sale
13 Great Deals out of 528 listings starting at $12,995
2014 Chevrolet Impala LS For Sale
13 Great Deals out of 387 listings starting at $11,985
2013 Chevrolet Impala LS For Sale
38 listings starting at $5,895