AC going hot during idle

[AN292]

My coolant temp also rises.

I have a new:

Water pump
Thermostat
Fan clutch

any ideas?

 

[Tonyrodz]

My coolant temp also rises.

I have a new:

Water pump
Thermostat
Fan clutch

any ideas?

Has it been doing this for awhile or has it just started recently? Which coolant and how old is it? Could be an internal blockage. Last thing is your radiator, how's the condition of that? Having any coolant loss? How high is the temp getting?

 

[AN292]

Has it been doing this for awhile or has it just started recently? Which coolant and how old is it? Could be an internal blockage. Last thing is your radiator, how's the condition of that? Having any coolant loss? How high is the temp getting?

It’s a very new problem. Orange dex, water pump, thermostat, and coolant are less than a month old. I had coolant loss with my old water pump, new one is not leaking a drop. The temp goes about 3/4 of the way to max and the AC is uncomfortably hot.

When I drive it’s ice cold though

 

[Tonyrodz]

It’s a very new problem. Orange dex, water pump, thermostat, and coolant are less than a month old. I had coolant loss with my old water pump, new one is not leaking a drop. The temp goes about 3/4 of the way to max and the AC is uncomfortably hot.

When I drive it’s ice cold though

What brand water pump? Brand of the clutch fan? Possible to get bad parts out of the box. You usually get what you pay for with that cheap crap.

 

[AN292]

What brand water pump? Brand of the clutch fan? Possible to get bad parts out of the box. You usually get what you pay for with that cheap crap.

acdelco everything, fluid was prestone

I almost never use aftermarket parts for anything

 

[S33k3r]

acdelco everything, fluid was prestone

I almost never use aftermarket parts for anything

Which AC Delco did you use? https://gmauthority.com/blog/2021/03/acdelco-facing-lawsuit-over-made-in-usa-claim-on-packaging/

 

[AN292]

Which AC Delco did you use? https://gmauthority.com/blog/2021/03/acdelco-facing-lawsuit-over-made-in-usa-claim-on-packaging/

They all said made in Mexico

 

[corvette744]

My coolant temp also rises.

I have a new:

Water pump
Thermostat
Fan clutch

any ideas?

When engine is cold pop hood and try to spin the fan clutch does it spin freely or have tension.

 

[AN292]

When engine is cold pop hood and try to spin the fan clutch does it spin freely or have tension.

Has tension

 

[Fless]

Fan shroud in place and complete?

 

[swathdiver]

My coolant temp also rises.

I have a new:

Water pump
Thermostat
Fan clutch

any ideas?

Could be a couple of things. First is the fan clutch and then there may be a small leak to where it's time to add some refrigerant to the system. Replacing the service ports on two different vehicles solved the slow leaks and made them cold again. When the condenser and compressors wear out, they will also make the AC hot at low or no speed. Do the cheap and easy stuff first.

 

[corvette744]

Has tension

Is the ac clutch engaged or off.Is it cycling .

 

[AN292]

Is the ac clutch engaged or off.Is it cycling .

I will check and get back to this thread

Could be a couple of things. First is the fan clutch and then there may be a small leak to where it's time to add some refrigerant to the system. Replacing the service ports on two different vehicles solved the slow leaks and made them cold again. When the condenser and compressors wear out, they will also make the AC hot at low or no speed. Do the cheap and easy stuff first.

Thank you for the help, Im going to check the 134 charge first, and then my ac clutch

Fan shroud in place and complete?

Actually no, its not. I forgot the bottom shroud when I replaced my water pump. Definitely didn't feel like taking my fan clutch off again and putting it on.

 

[AN292]

The AC clutch is spinning, been staring at it for about 5 minutes. Never disengages.

 

[Rocket Man]

The AC on my 02 does that if it’s over about 90 and I’m stuck in traffic, even with an electric fan conversion. The NBS don’t have the best condensers. You can check for leaves and stuff in the condenser and radiator and also check to see if your clutch fan is operating when the ac gets hot. Does the snowflake symbol blink 3 times and not stay lit?

 

[Rocket Man]

I will check and get back to this thread


Thank you for the help, Im going to check the 134 charge first, and then my ac clutch



Actually no, its not. I forgot the bottom shroud when I replaced my water pump. Definitely didn't feel like taking my fan clutch off again and putting it on.

There’s your problem, the shroud is important.

 

[AN292]

There’s your problem, the shroud is important.

Well shit. I’ll put it back on then. I was just tired and I did the water pump in the rain, I was freezing and couldn’t feel my hands haha. Never got around to getting that back on. Thank you very much

 

[swathdiver]

Well shit. I’ll put it back on then. I was just tired and I did the water pump in the rain, I was freezing and couldn’t feel my hands haha. Never got around to getting that back on. Thank you very much

Did your generation come with baffling on either side of the radiator and condenser? Mine did and the material was rotting away and my coolant temperature went up slightly and that may also explain why my AC was not quite as cool as it once was, maybe. I went ahead and purchased all 4 NOS pieces to keep mine in top form.

 

[SUMTOY2]

My coolant temp also rises.

I have a new:

Water pump
Thermostat
Fan clutch

any ideas?

Air in the system

 

[Rocket Man]

Any update @AN292 ?