Here is a weird issue on a 07 Nissan Altima. Just recently, the air conditioning started blowing weak when I hit highway speeds (around 60+). It still blows cold…, but is very faint no matter what speed the blower is on. I can still hear the blower cranking away, but very little air coming out of the vents. If i turn the a/c button off…it takes a little bit, like 20 seconds, but the air starts blowing through the vents again. Wait a bit and hit the a/c button and blammo - a/c. It lasts for about 10 minutes and happens all over again. Only at high speeds. at low speeds, everything works like a champ.
Thoughts? I have a hunch…but would like some feedback before I start tinkering.