Do Not Sell My Personal Information Jump to content

Repaired Ac/ Now Very Cool When Cold Out. When Hot Out Air Is Barely C


newlexman
 Share

Recommended Posts

Hey guys,

I had a friend work on my air. We replaced compressor with reman, expansion valve, ac drier, and condensor. First I had it checked for leaks. He checked with dye to make sure we had no leaks. Made sure we were clear of r12 and we are doing 134a.

For some reason, it is very cold in the evening when the temp is lower(60-70), but when its hot in the day(85- 100), it seems to not get cold enough to make the car comfortable. I turned the car from heat to cold and they both work, also seems you can here the blend door changing over.

He hot wired the condensor fans because they were not coming on so now they stay on when the car is on. Also when the air on, the car idles up a notch on the rpms noticebly.

Is this how it is suppose to work. And is there any suggestions to check to see what is wrong with the cool. With all new equipment i would think this thing should run magnificently.

Link to comment
Share on other sites


Hey guys,

I had a friend work on my air. We replaced compressor with reman, expansion valve, ac drier, and condensor. First I had it checked for leaks. He checked with dye to make sure we had no leaks. Made sure we were clear of r12 and we are doing 134a.

For some reason, it is very cold in the evening when the temp is lower(60-70), but when its hot in the day(85- 100), it seems to not get cold enough to make the car comfortable. I turned the car from heat to cold and they both work, also seems you can here the blend door changing over.

He hot wired the condensor fans because they were not coming on so now they stay on when the car is on. Also when the air on, the car idles up a notch on the rpms noticebly.

Is this how it is suppose to work. And is there any suggestions to check to see what is wrong with the cool. With all new equipment i would think this thing should run magnificently.

You can see, watch, the blend door position, positioning, cycling, via watching the movement of the coolant control valve in the engine compartment at the top center of the firewall. There is a push/pull cable that comes through the firewall, non-visible end is attached to the blend vane/door servomotor.

I always remove the push/pull cable from the HOT water flow control valve during the summer and tie-wrap the water flow valve TIGHTLY shut.

Link to comment
Share on other sites

Need to know the preasures of low/high.

Did you put the correct amount of oil?

And finally were the fans working before you did the work, if so you shouldn't need to hot wire them, also it's not recomended because your not letting the engine come up to operating temp.

Sounds to me your just a little short of r134.

Link to comment
Share on other sites

Need to know the preasures of low/high.

Did you put the correct amount of oil?

And finally were the fans working before you did the work, if so you shouldn't need to hot wire them, also it's not recomended because your not letting the engine come up to operating temp.

Sounds to me your just a little short of r134.

I dont know the pressure, but the guy was pretty knowledgeble who put it in about high side low side pressure. we put a used compressor on and he had to take it off because of the low , high thing. He said he made sure he put oil and i think 5 cans of freon in all. It must be a bit of knowledge on something he is missing that would solve this final issues. Can the hotwired fans be causing this. I believe the fans worked before. I bought the car with the air not working. at one time we put 134 a in it it was cold for two days then it was cold no more.

Link to comment
Share on other sites

If he put 5 cans in that 1 lb. per can if it's the small cans so it would total to 5 lbs. That's a bit to much.

Go to any auto parts store and get a A/C fill hose with a gauge, they are not that expensive.

I was wrong, he put 3 cans in. ALso i was just driving and it started to make a wierd noise as if something was trying to get through somewhere every coupl of seconds. I turned off the air , and a burst of smoke came from under the hood. then i turned it on and it came on again. It did it about 15 minutes later again. I turned it off. ?????????? This air is driving me insane.

Link to comment
Share on other sites

Thats the high side relief vavle opening. When preasure on the high side goes through the roof it opens so that nothing else blows up. Again the fans or incorrect amount of gas.

Take it to a A/C mechanic to have the whole system checked and to make the fans work corretly.

Sorry I wish I could help more.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...

Forums


News


Membership