Background info, A/C blows cool. In the morning on a cloud covered day, it will eventually cool the cabin. On a heat soaked, 95F afternoon in stop and go traffic, it will never keep up.
Yesterday I removed the blower motor and visually inspected the evaporator and flushed it with some degreaser and the water hose; it was surprising clean with very little debris.
Changing the temperature lever definitely adjusts the temperature from cool to hot and the water control valve seems to be fully closed.
Looking for someone with experience to tell me what I'm reading on the A/C manifold gauges.
Ambient temp 90F with 60% humidity.
Static pressures with the engine off were similar on the low and high side:
I followed the FSM steps shown below and converted the normal readings via Google:
The last picture is after I let the A/C run for 5 minutes on max, recirculate on, with RPMs at 1500.
LOW = 20 PSI, HIGH = 235 PSI.
When I look up these numbers on other A/C gauge reading sites, it seems they're both low, but according to the FSM I'm just barely out of spec in each direction. I think with the 60% humidity I should be seeing higher numbers from both, indicated a low charge? Any other thoughts?
Yesterday I removed the blower motor and visually inspected the evaporator and flushed it with some degreaser and the water hose; it was surprising clean with very little debris.
Changing the temperature lever definitely adjusts the temperature from cool to hot and the water control valve seems to be fully closed.
Looking for someone with experience to tell me what I'm reading on the A/C manifold gauges.
Ambient temp 90F with 60% humidity.
Static pressures with the engine off were similar on the low and high side:
I followed the FSM steps shown below and converted the normal readings via Google:
The last picture is after I let the A/C run for 5 minutes on max, recirculate on, with RPMs at 1500.
LOW = 20 PSI, HIGH = 235 PSI.
When I look up these numbers on other A/C gauge reading sites, it seems they're both low, but according to the FSM I'm just barely out of spec in each direction. I think with the 60% humidity I should be seeing higher numbers from both, indicated a low charge? Any other thoughts?