Multiple issues with 2004 Pontiac Grand Am, V6


Asked by Jun 08, 2014 at 10:04 PM about the 2004 Pontiac Grand Am

Question type: Maintenance & Repair

My Grand Am has started making a knocking noise in the last week when I turn on my AC.  I assume the compressor is going out but how can I be sure?  It still blows cold air (albeit only when I turn it up to max, a different problem?) but I don't want to wait on it to quit completely if it is going to do so I need to figure out how much it is going to cost to replace it.  Also, if I need to change the compressor how will it affect the rest of my AC system?  Meaning will I need a professional to adjust my cooling system if I have to change the compressor, or is this just a part swap?  Please advise, thank you.

2 Answers


If it is blowing cold ,and just starting to make the noise,you may need to go have it charged with a little ac oil,may save you from having to replace compressor.

1 out of 1 people think this is helpful.

To replace the compressor correctly you'll have to evacuate the refrigeration system, replace the compressor, orifice tube, and accumulator. Then vacuum, "sweep", and recharge the refrigeration system. HTH. -Jim

Your Answer

Add photo

Related Questions

Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
Reputation 7,080
#2 John Saffrahn
John Saffrahn
Reputation 1,480
#3 Tom Demyan
Tom Demyan
Reputation 1,240
View All

Related Models For Sale

Used Pontiac Grand Prix"
27 Great Deals out of 4,392 listings starting at $1,972
Used Chevrolet Impala"
939 Great Deals out of 35,889 listings starting at $700
Used Pontiac G6"
148 Great Deals out of 5,688 listings starting at $999
Used Ford Mustang"
728 Great Deals out of 41,499 listings starting at $900
Used Pontiac GTO"
8 Great Deals out of 515 listings starting at $5,995
Used Chevrolet Malibu"
1,181 Great Deals out of 72,977 listings starting at $695
Used Pontiac Bonneville"
861 listings starting at $1,450
Used Honda Civic"
1,173 Great Deals out of 59,023 listings starting at $1,300
Used Nissan Altima"
1,492 Great Deals out of 88,167 listings starting at $1,195
Used Honda Accord"
1,308 Great Deals out of 78,748 listings starting at $1,395
Used Jeep Grand Cherokee"
1,201 Great Deals out of 74,214 listings starting at $1,500

Used Cars For Sale

2004 Pontiac Grand Am For Sale
486 listings starting at $2,699