Variable airflow AC problems

[AV8R4AA]

I changed out my FSR to a new.
I was getting variable AC volume of air.

I can hit max blower and it seems to straighten out.
And blow normal flow.

I am NOT hearing the blower RPM decrease.
It seems as if the ducting is becoming blocked.
The air flow volume decreases without the fan RPM dropping.

After about 30 or 40 minutes the flow seems to
decrease to a trickle.
And the process starts over.

Any thoughts on where to start?

[Zulu95]

Had the same problem. Needed the AC recharged. Take it to an AC shop and have them do the job right including leak testing.

[X53Jay4.8is]

Originally Posted by AV8R4AA

I changed out my FSR to a new.
I was getting variable AC volume of air.

I can hit max blower and it seems to straighten out.
And blow normal flow.

I am NOT hearing the blower RPM decrease.
It seems as if the ducting is becoming blocked.
The air flow volume decreases without the fan RPM dropping.

After about 30 or 40 minutes the flow seems to
decrease to a trickle.
And the process starts over.

Any thoughts on where to start?

Mine did the same thing 6 months after I got it . May be the dreaded AC evaporator leak. As suggested have the AC leaked checked and take it from there.

[AV8R4AA]

Had the AC recharged.
Meat locker now

[Zulu95]

[X53Jay4.8is]

Originally Posted by AV8R4AA

Had the AC recharged.
Meat locker now

Thats good but if the evaporator is leaking in a couple of months it will be the same again. Anyway get through this charge and see how it goes. These X5 are know for the slow evap leak.

[AV8R4AA]

Thanks Guys