A/C troubles

[00V8]

I have a couple problems with my HVAC system in my 00 Explorer.

First, The A/C just doesn't seem to be cold anymore, its just cool.
It has always been the coldest a/c of all my cars until this year. I took it in and had it charged but it didn't change anything at all so obviously that wasn't the only problem.

Second, it seems to have a vacuum leak because when the engine is under load the blower defaults back to defrost for a few minutes.

Does anyone have a vacuum diagram for a 5.0 explorer? Where are common vacuum leaks? Does vacuum control the hot/cold air mix also?

Could my vacuum leak be the whole problem?

 

[1992fordgreen]

Your A/C was recharged. Still not cool. That would mean, (imo) one thing. The condenser is clogged. Has your A/C shop looked at the condenser because I guarantee it's clogged.

Go to Ford.com and they should have a vac diagram. Fordfleet maybe as well.

 

[00V8]

is there a way to flush the condesor or do you have to replace it?

 

[1992fordgreen]

I'm still trying to figure that out myself. (flushing it that is) Miata has the same problem, slightly and the Sequoia had the problem. Shop diagnosed it as ta clogged condenser.

 

[drdoom]

I would check the heater bypass valve too (if that model has it) and the vacuum line that controls it.

 

[bill06447]

Loss of ac efficiency due to airflow restrictions isn't uncommon. Try this: (With the engine off) direct a jet of water through the engine side of the radiator aiming outward to remove gunk and debris from the condenser fins.

Bill