manowar77 Posted November 25, 2009 Report Share Posted November 25, 2009 Hi guys! I am thinking of removing the entire ac system on my STS 95, i dont use it or have any use for it! I had to replace the bearing in the ac compressor in january after that the bearing failed and the axle got bent with the result that the engine didnt crank over cause of the drivebelt was stuck! This ac system crap that are on every car i never had figured out whats the use for, in the short summers we have here in Sweden you dont want to sit in cold car when you have waited for the summer through the cold winter. Is it possible to remove compressor,all lines, expansion tube and just throw this crap in the garbage container? Then just get the shorter belt to bypass the compressor pulley? What about the electrical fittings...will it set a code when the compressor is removed? Should be easier to replace the alternator if its neccesary in the future with the ac compressor gone! Roger Roger Martinsen Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 25, 2009 Report Share Posted November 25, 2009 For about a year, I had by-passed my compressor with a shorter belt and the freon was low and it just set a low freon code, not a big deal. I think you could easily remove the AC system especially on an OBD1 system. The only possible drawback would be that your cooling fans would simply run in cycling mode and they would not be commanded to HIGH when you had turned on your AC. Having the AC on commands the cooling fans to high and the temps are more leveled The only other issue would be that you would not have dehumidified defroster air, which might fog up your windshield given certain conditions We can provide you with the length of the belt to by pass the compressor Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
manowar77 Posted November 25, 2009 Author Report Share Posted November 25, 2009 Thanks BBF! Do you know where i can get a exploded view of the ac system on a northstar? I am thinking of completly removing all components of the ac system, would likely be more room in the engine compartment after that when working on the engine! Can you take out the compressor from the right wheel house? Roger Roger Martinsen Link to comment Share on other sites More sharing options...
KHE Posted November 25, 2009 Report Share Posted November 25, 2009 The compressor will come out through the wheel well but you're not going to open up much room in the engine compartment by removing the compressor. Unless you plan on keeping the car until the wheels fall off, the next person to buy your car might want the A/C system functioning. Just some thoughts. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
manowar77 Posted November 25, 2009 Author Report Share Posted November 25, 2009 The compressor needs to be replaced anyway due to the bent axle in it! With the compressor removed,would it gain access to remove the alternator from the wheel house after unbolting it from the back? Roger Martinsen Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 25, 2009 Report Share Posted November 25, 2009 Here is an exploded view of the AC system, I would imagine that you could leave the evaporator in place Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
manowar77 Posted November 25, 2009 Author Report Share Posted November 25, 2009 Thanks BBF! That helped me alot:) What about the "thing" mounted on the top of the coolant recovery tank, is it unscrewable or is it stuck with the tank? Roger Martinsen Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 25, 2009 Report Share Posted November 25, 2009 Thanks BBF! That helped me alot:) What about the "thing" mounted on the top of the coolant recovery tank, is it unscrewable or is it stuck with the tank? That is the accumulator/dryer, it is held in place by a clamp and inlet and out let tubing, it comes right off... Its not on top of the tank, its shaped like a coffee can, and extends down. The condenser comes off also Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
manowar77 Posted November 25, 2009 Author Report Share Posted November 25, 2009 what do you suggest..shorter belt AC Delco part nr 6K739 or the bypass pulley(which seems like a little weak construction)? Roger Martinsen Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 25, 2009 Report Share Posted November 25, 2009 what do you suggest..shorter belt AC Delco part nr 6K739 or the bypass pulley(which seems like a little weak construction)? I used that belt with no trouble at all for over a year, you might want to try going to the very next size larger, if its not too much, I found that belt to be a little tight, but it did work Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
jackaroo12 Posted November 27, 2009 Report Share Posted November 27, 2009 thanks for the diagram of the ac system. it is very handy when i decide but need instructions on how to do this. anyone knows? Link to comment Share on other sites More sharing options...
manowar77 Posted November 28, 2009 Author Report Share Posted November 28, 2009 Just checking... The ac system doesnt include in any part of the coolant system,does it? You dont have to drain the coolant system or interfear with it to remove the ac system? Or am i wrong? Roger Roger Martinsen Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 28, 2009 Report Share Posted November 28, 2009 Just checking... The ac system doesnt include in any part of the coolant system,does it? You dont have to drain the coolant system or interfear with it to remove the ac system? Or am i wrong? Roger Nope, no connection at all, other than the electrical connection to turn on the cooling fans, but nothing related to coolant Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
manowar77 Posted November 28, 2009 Author Report Share Posted November 28, 2009 Thanks BBF! Its nice when you have experts online.. Roger Roger Martinsen Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 29, 2009 Report Share Posted November 29, 2009 Thanks BBF! Its nice when you have experts online.. Roger Well I dont know about expert, LOL, but I am glad I could help Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
manowar77 Posted December 12, 2009 Author Report Share Posted December 12, 2009 Question: What is the easiest way to remove the condenser? Do i have to remove the radiator to gain access to the condenser? I am doing this job during the christmas holidays so i still need some advice! Thanks Roger Roger Martinsen Link to comment Share on other sites More sharing options...
KHE Posted December 14, 2009 Report Share Posted December 14, 2009 You should be able to remove it by taking out the upper radiator cover. You might be better off just leaving it in place and sealing off the tubing connections. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
joeb Posted December 15, 2009 Report Share Posted December 15, 2009 but it weighs 11lbs. think of the performance gain from removing that extra weight. take out the trunk carpet too. that will help. Link to comment Share on other sites More sharing options...
manowar77 Posted December 15, 2009 Author Report Share Posted December 15, 2009 Yes...maybe that will help on the auto tax that we pay every year, it depends on how much the car weighs! Roger Martinsen Link to comment Share on other sites More sharing options...
BodybyFisher Posted December 15, 2009 Report Share Posted December 15, 2009 Yes...maybe that will help on the auto tax that we pay every year, it depends on how much the car weighs! Did you get the condenser off?, if I recall there is a left and right bracket that you can remove the condenser from, but that is from a 96 Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
manowar77 Posted December 16, 2009 Author Report Share Posted December 16, 2009 Yes...maybe that will help on the auto tax that we pay every year, it depends on how much the car weighs! Did you get the condenser off?, if I recall there is a left and right bracket that you can remove the condenser from, but that is from a 96 I havent done the job yet, next week i will start pulling this ac crap out.. Ive bought a bypass-pulley from Rockauto that i will put in instead of the compressor! Roger Roger Martinsen Link to comment Share on other sites More sharing options...
manowar77 Posted December 23, 2009 Author Report Share Posted December 23, 2009 Update! I have now removed the ac system successfully! Started with the pipes from the evapoator that goes along the fire wall along each side of the front, just to cut and throw out! To get out the condenser i had to remove the headlight assembly (6 screws) and unscrew the condenser from the bracket(4 screws), Then just pry out it from the sides and then cut the pipe fittings witha metalsaw that goes in to the condenser! Then its free to remove! After that i unscrewed the dryer,came off very easy, and cut the pipe as near to the compressor as possible! To get the compressor out wasnt easy...removed the 3 screws from the inner shield, but it was fastened in the back also with 2 screws that were nearly impossible to reach...removed the oil filter to get to the screw that hold the pipeline bracket, didnt get it off!! Was no space to remove it!! So it was to use the saw again,cut the pipes as closely to the compressor that i could..so it cleared from the alternator! After using major force it finally came out.. Now the whole ac system was removed except for the evapoator who was left in place..just plugged the connections with 2 closed nuts! I had to drill up the 3 holes in the bypass pulley that i bought because the holes were threaded?? Drilled them up with a 10mm drill and screwed it in place where the compressor was before..fit just fine! Mounted the belt back on and the battery,then back with the headlight assembly and the job was done! Removed the ac system fuse, checked the oil level and everything else before starting up the engine! All worked just fine...no codes appered! Now its a little more room in the engine compartment along the batteriside, and finally one less thing to worry about:) I will post some pics soon when i transfered the pics from my cellphone! Roger Roger Martinsen Link to comment Share on other sites More sharing options...
dmk9561 Posted December 23, 2009 Report Share Posted December 23, 2009 Update! I have now removed the ac system successfully! Started with the pipes from the evapoator that goes along the fire wall along each side of the front, just to cut and throw out! To get out the condenser i had to remove the headlight assembly (6 screws) and unscrew the condenser from the bracket(4 screws), Then just pry out it from the sides and then cut the pipe fittings witha metalsaw that goes in to the condenser! Then its free to remove! After that i unscrewed the dryer,came off very easy, and cut the pipe as near to the compressor as possible! To get the compressor out wasnt easy...removed the 3 screws from the inner shield, but it was fastened in the back also with 2 screws that were nearly impossible to reach...removed the oil filter to get to the screw that hold the pipeline bracket, didnt get it off!! Was no space to remove it!! So it was to use the saw again,cut the pipes as closely to the compressor that i could..so it cleared from the alternator! After using major force it finally came out.. Now the whole ac system was removed except for the evapoator who was left in place..just plugged the connections with 2 closed nuts! I had to drill up the 3 holes in the bypass pulley that i bought because the holes were threaded?? Drilled them up with a 10mm drill and screwed it in place where the compressor was before..fit just fine! Mounted the belt back on and the battery,then back with the headlight assembly and the job was done! Removed the ac system fuse, checked the oil level and everything else before starting up the engine! All worked just fine...no codes appered! Now its a little more room in the engine compartment along the batteriside, and finally one less thing to worry about:) I will post some pics soon when i transfered the pics from my cellphone! Roger My AC compressor gave out and is making a nasty noise even when off. I'll probably bypass it with a short belt until it gets warmer and I need it. When you removed the AC fuse, can you still run the fan and get heat? It's cool here right now, and I do still need to have heat and/or fresh air even without running the AC. Link to comment Share on other sites More sharing options...
manowar77 Posted December 24, 2009 Author Report Share Posted December 24, 2009 Yes, it works without the fuse! Dont wait to long to bypass the compressor...my compressor was also making noise before it finally gave up and stopped turning due to the failed bearing/axle! I couldnt start the engine because the belt was unable to turn the compressor so i had to get the car towed to a mechanic! So..bypass it as soon as possible! I have no use for ac so i simply removed all components and put a bypass pulley there instead! Roger Martinsen Link to comment Share on other sites More sharing options...
dmk9561 Posted December 27, 2009 Report Share Posted December 27, 2009 Yes, it works without the fuse! Dont wait to long to bypass the compressor...my compressor was also making noise before it finally gave up and stopped turning due to the failed bearing/axle! I couldnt start the engine because the belt was unable to turn the compressor so i had to get the car towed to a mechanic! So..bypass it as soon as possible! I have no use for ac so i simply removed all components and put a bypass pulley there instead! Too late. I wrote that message at work, and the compressor locked and broke the belt on the way home from work that day. The short belt is on the car right now, and I'll have the air done in a couple of months when it starts to get warm. It gets in the high 30s © here in the summer, so AC is not a luxury but a necessity. The humidity is awful, too. That said, the car is quiet and smooth right now... I'll pull the AC fuse in a little while. Driving it right now with the fuse in has the service engine light on, but it does say "MONITORED SYSTEMS OK" anyway. Link to comment Share on other sites More sharing options...
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