A.C Revamp

413 Views 18 Replies 6 Participants Last post by ehbrown1, 24 d ago

NTnemo

TIME TO TALK ABOUT SOME A.C..... 🫠

So Bethany came to me with A.C Blowing hot and only working on High and not Low....I immediately assume the blower motor resistor not to mention the (Rear AC Switch) and connector is burnt...

(Amazons sending another,it arrived broken)

more recently now when turned on the compressor really has a noise to it.....so all in all this AC needs Tobe Revamped...

(one of the 1st shops i took her too when they gave me a new ECM, Dash Cluster and alternator, i asked them if they could look at for me, when picking the van up i asked again and the owner dished it off and told me i had a leak and it wasnt worth paying the money($2700+) required to fix it,but i honestly believe they didnt even really look and they dont wanta do the job)....

I have rear ac assembly as well (I'm praying that the rear is fine) cause I did't order anything for the rear except for a New Rear AC Switch, i had to take a picture and match up the burnt connector for the switch, with all my concern being directed up front.....

I do have a evaporator and rear blower motor and resistor on standby in my wishlist if that becomes something i have to handle

For now I ordered all the baseline components for the front:

-Delphi Compressor
- GM blower motor
-GM Dryer
-Acdelco office tube(Severe Duty)

Packing materials Wood Shipping box Plastic Electric blue

View attachment 290009

Gesture Finger Font Material property Thumb

Drinkware Shipping box Fluid Packing materials Wood

I had to go with a 4 seasons evaporator as they or the only manufacturers for our van at this time

They wanted $28-32 for acdelco o ring set....I grabbed the exact same set from 4 seasons for $5 on amazon

Instead of GM, i opted for the Dorman blower motor Resistor due to it also coming with a connector as well(which also might be affected)

Shipping box Art Creative arts Wrist Nail

My mechanic said nothing about a. Condenser but with my own study I went ahead and grabbed one(rather have it and not use it, and just return it)
I went with the spectrum premium model off Amazon($140) seem Tobe trusted with special attention given to anti-corrosive model(aluminum with coating)

Only thing I didn't purchase was hoses in which I feel like I should get just in case one of them has a Leak point

Idk.....I always try my best to set shi up so I can attack as much as I can at one time, or if anything comes up(discovered)ill have the part ready

Please tell me if Im missing something.....or advise me if I'm attacking this correctly.....I'm approaching this in away so I can avoid the pricey AC shops, but get this done before summer burns my azz alive

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NTnemo

Discussion Starter · #6 · 25 d ago

Not t

Big_kid said:
Is there an expansion valve in the rear? I'm not thoroughly familiar with them, but I've seen them recommended to be changed when servicing a system with rear AC. I'm getting to the point of wanting to get mine working for the first time since I've owned my van (15 years), so I'll be watching this thread for info.

not that I kno of just for the front. ..it's only the resistor but there are (2) different types depending on if you have rear ac controls or not

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NTnemo

Discussion Starter · #7 · 25 d ago

MechBob said:
Well, I recommend replacing the rear expansion valve, if the system has to be opened up, and especially if the system is "flat", meaning coolant leaked out. As, it corrodes easily, especially in air, and, is very easily blocked by even a small piece of debris.

OK, Im Ordering one unc

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NTnemo

Discussion Starter · #8 · 25 d ago

ehbrown1 said:
Well then, you came to the right place to talk about A/C.

Seems to me like you are grabbing a few too many parts for your problem.
Whenever you have a melting connector, 99 out of 100 its the blower motor overamping due to drying out of the bearings. The other 1 is the connector being loose.
If the connector is burnt, you cover your bases and replace that connector, the resistor pack and the blower motor at the same time. Problem gone.
Same for the rear A/C, if the connector is burnt, replace the motor.
Because a compressor is noisy does not mean you have to replace everything it's attached to.
If it's blowing hot air, is the compressor even turning? Is the clutch engaging when you turn the A/C on? Is the clutch the noisy part? You may simply have a leak and a noisy clutch.
There is absolutely no need to replace the condenser and evaporator.
Of the hundreds (if not thousands by now) of A/C systems I have ever worked on, I have never seen an evaporator or condenser needing to be replaced unless physically damaged. May need to be cleaned of debris, but never replaced. Same for orifice tubes. Unless damaged or clogged beyond recognition, clean the original and stick it back in.

So start from scratch and inspect everything - BEFORE replacing everything. You will find out you now have a supply of unneeded parts on hand.

Gotcha unc, I'll return'em to amazon

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NTnemo

Discussion Starter · #10 · 25 d ago

sixsix said:
Does everyone here already know what year / model, etc this Van is ?

I seem to be a tad slow here on the uptake - but would it be too much trouble to post your Van year at least in your sig or profile ?
One way appears under your Avatar info, the other appears under your posted text.
<---- here's the 1st one...

Sorry unc I kinda made my account dark....I got scared with the whole gun ordeal lmao....it's a 2003 astro (rwd)

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NTnemo

Discussion Starter · #12 · 25 d ago

NTnemo said:
TIME TO TALK ABOUT SOME A.C..... 🫠

So Bethany came to me with A.C Blowing hot and only working on High and not Low....I immediately assume the blower motor resistor not to mention the (Rear AC Switch) and connector is burnt...
View attachment 290013
(Amazons sending another,it arrived broken)

more recently now when turned on the compressor really has a noise to it.....so all in all this AC needs Tobe Revamped...

(one of the 1st shops i took her too when they gave me a new ECM, Dash Cluster and alternator, i asked them if they could look at for me, when picking the van up i asked again and the owner dished it off and told me i had a leak and it wasnt worth paying the money($2700+) required to fix it,but i honestly believe they didnt even really look and they dont wanta do the job)....

I have rear ac assembly as well (I'm praying that the rear is fine) cause I did't order anything for the rear except for a New Rear AC Switch, i had to take a picture and match up the burnt connector for the switch, with all my concern being directed up front.....

I do have a evaporator and rear blower motor and resistor on standby in my wishlist if that becomes something i have to handle

For now I ordered all the baseline components for the front:

-Delphi Compressor
- GM blower motor
-GM Dryer
-Acdelco office tube(Severe Duty) View attachment 290007
View attachment 290009
View attachment 290008
View attachment 290006

I had to go with a 4 seasons evaporator as they or the only manufacturers for our van at this time View attachment 290010

They wanted $28-32 for acdelco o ring set....I grabbed the exact same set from 4 seasons for $5 on amazon View attachment 290011

Instead of GM, i opted for the Dorman blower motor Resistor due to it also coming with a connector as well(which also might be affected) View attachment 290012

My mechanic said nothing about a. Condenser but with my own study I went ahead and grabbed one(rather have it and not use it, and just return it)
I went with the spectrum premium model off Amazon($140) seem Tobe trusted with special attention given to anti-corrosive model(aluminum with coating)

Only thing I didn't purchase was hoses in which I feel like I should get just in case one of them has a Leak point

Idk.....I always try my best to set shi up so I can attack as much as I can at one time, or if anything comes up(discovered)ill have the part ready

Please tell me if Im missing something.....or advise me if I'm attacking this correctly.....I'm approaching this in away so I can avoid the pricey AC shops, but get this done before summer burns my azz alive

Expansion valve came in today had to grab thru ebay....no other vendors had inventory

Automotive lighting Automotive fog light Packing materials Plastic Automotive light bulb

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NTnemo

Discussion Starter · #13 · 24 d ago

ehbrown1 said:
Well then, you came to the right place to talk

ehbrown1 said:

Well then, you came to the right place to talk about A/C.

Seems to me like you are grabbing a few too many parts for your problem.
Whenever you have a melting connector, 99 out of 100 its the blower motor overamping due to drying out of the bearings. The other 1 is the connector being loose.
If the connector is burnt, you cover your bases and replace that connector, the resistor pack and the blower motor at the same time. Problem gone.
Same for the rear A/C, if the connector is burnt, replace the motor.
Because a compressor is noisy does not mean you have to replace everything it's attached to.
If it's blowing hot air, is the compressor even turning? Is the clutch engaging when you turn the A/C on? Is the clutch the noisy part? You may simply have a leak and a noisy clutch.
There is absolutely no need to replace the condenser and evaporator.
Of the hundreds (if not thousands by now) of A/C systems I have ever worked on, I have never seen an evaporator or condenser needing to be replaced unless physically damaged. May need to be cleaned of debris, but never replaced. Same for orifice tubes. Unless damaged or clogged beyond recognition, clean the original and stick it back in.

So start from scratch and inspect everything - BEFORE replacing everything. You will find out you now have a supply of unneeded parts on hand.

Click to expand...

about A/C.

Seems to me like you are grabbing a few too many parts for your problem.
Whenever you have a melting connector, 99 out of 100 its the blower motor overamping due to drying out of the bearings. The other 1 is the connector being loose.
If the connector is burnt, you cover your bases and replace that connector, the resistor pack and the blower motor at the same time. Problem gone.
Same for the rear A/C, if the connector is burnt, replace the motor.
Because a compressor is noisy does not mean you have to replace everything it's attached to.
If it's blowing hot air, is the compressor even turning? Is the clutch engaging when you turn the A/C on? Is the clutch the noisy part? You may simply have a leak and a noisy clutch.
There is absolutely no need to replace the condenser and evaporator.
Of the hundreds (if not thousands by now) of A/C systems I have ever worked on, I have never seen an evaporator or condenser needing to be replaced unless physically damaged. May need to be cleaned of debris, but never replaced. Same for orifice tubes. Unless damaged or clogged beyond recognition, clean the original and stick it back in.

So start from scratch and inspect everything - BEFORE replacing everything. You will find out you now have a supply of unneeded parts on hand.

ehbrown1 said:
Well then, you came to the right place to talk about A/C.

Seems to me like you are grabbing a few too many parts for your problem.
Whenever you have a melting connector, 99 out of 100 its the blower motor overamping due to drying out of the bearings. The other 1 is the connector being loose.
If the connector is burnt, you cover your bases and replace that connector, the resistor pack and the blower motor at the same time. Problem gone.
Same for the rear A/C, if the connector is burnt, replace the motor.
Because a compressor is noisy does not mean you have to replace everything it's attached to.
If it's blowing hot air, is the compressor even turning? Is the clutch engaging when you turn the A/C on? Is the clutch the noisy part? You may simply have a leak and a noisy clutch.
There is absolutely no need to replace the condenser and evaporator.
Of the hundreds (if not thousands by now) of A/C systems I have ever worked on, I have never seen an evaporator or condenser needing to be replaced unless physically damaged. May need to be cleaned of debris, but never replaced. Same for orifice tubes. Unless damaged or clogged beyond recognition, clean the original and stick it back in.

So start from scratch and inspect everything - BEFORE replacing everything. You will find out you now have a supply of unneeded parts on hand.

Well you straight told me what was up lol Notes definitely taken, just kno I have no A.C Insight/Knowledge(Really)and I did a quick overnight study of the system and parts within....I'll go about spinning the clutch by hand.....and most likely return the evaporator & condenser .....I slightly have this thing for splurging on parts for the van (why not right lol)(Don't mind me lol)

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NTnemo

Discussion Starter · #14 · 24 d ago

Big_kid said:
Is there an expansion valve in the rear? I'm not thoroughly familiar with them, but I've seen them recommended to be changed when servicing a system with rear AC. I'm getting to the point of wanting to get mine working for the first time since I've owned my van (15 years), so I'll be watching this thread for info.

Your van deserves it unc....bet you'll be done in ah few hours tooo...

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NTnemo

Discussion Starter · #16 · 24 d ago

[/QUOTE]

ehbrown1 said:
Don't misunderstand. I have no problem replacing parts. If they need to be.
If there is nothing wrong with the original parts, I try to reuse them whenever possible.
At least most of those original parts were made here or in Canada, not china and are of a superior quality.
But if someone feels better installing new parts to prevent problems down the road, I don't blame them.
Said it before, it's your vehicle and you do whatever you want with it.
Party on brother.

I've gradually been believing more and more in the saying "if it ain't broke don't fix(mess) with it.....

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NTnemo

Discussion Starter · #18 · 24 d ago

ehbrown1 said:
You're learning.

All week I've been getting schooled....basic training all over agian....it's OK us millenials have the future in our hands LMAO

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