I have a 2005 Touring model with 185k on it. AC was running like a champ until about 2 months ago. It was blowing warm air after a recharge which gave it 3 months of cold air. Mechanic diagnosed the issue as a faulty hose.
Now that the hose is replaced, about 15 minutes into running the AC, it abruptly stops blowing cold air. I can tell the compressor or condenser is kicking on and the MDX will shudder as if it knows there is an error in the system and shuts the compressor off. My mechanic once again took a look and said I had a dirty air inlet/condenser?? I am not sure what it is, but it sits in front of the radiator in the car. So, he hosed it down and almost immediately the car got cold again. He suggested I power wash it at a car wash. Just before arriving at the car wash, the AC started blowing warm again. The shuddering started. I left the car on while I power washed the front of the car and within a minute it was blowing ice cold air again and continued to for 15 minutes.
When the mechanic had the gauges hooked up to the AC system, he noticed a big pressure drop in the system after that 15 minute period would end. When you hit that front of the car with the water, the pressure lept up again.
He is baffled. What's going on here? Thanks!!
Now that the hose is replaced, about 15 minutes into running the AC, it abruptly stops blowing cold air. I can tell the compressor or condenser is kicking on and the MDX will shudder as if it knows there is an error in the system and shuts the compressor off. My mechanic once again took a look and said I had a dirty air inlet/condenser?? I am not sure what it is, but it sits in front of the radiator in the car. So, he hosed it down and almost immediately the car got cold again. He suggested I power wash it at a car wash. Just before arriving at the car wash, the AC started blowing warm again. The shuddering started. I left the car on while I power washed the front of the car and within a minute it was blowing ice cold air again and continued to for 15 minutes.
When the mechanic had the gauges hooked up to the AC system, he noticed a big pressure drop in the system after that 15 minute period would end. When you hit that front of the car with the water, the pressure lept up again.
He is baffled. What's going on here? Thanks!!