A/C not working - intermittant
- Thread starter Dormammu
- Start date
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taatt2girl
New Member
Hey I've had the same is happening to me lately in my 11, before it happened I was getting, a knocking noise whenever I put the air on. The knocking noise turned out to be the blower box, the little thin plastic fan on it was the issue, the pieces crack off . They have to replace with a newer stronger fan. But you haven't keep.an eye on the drainage lines as well. Good luck!! I know what a pain in the ass it is good luck.
Mike Wolfe
Full Access Members
When it is blowing hot air, open the hood & see if the compressor is running.
If not then you may have an electrical issue, if the compressor is running then there may be a blend door stuck or mispositioned
If not then you may have an electrical issue, if the compressor is running then there may be a blend door stuck or mispositioned
When it is blowing hot air, open the hood & see if the compressor is running.
If not then you may have an electrical issue, if the compressor is running then there may be a blend door stuck or mispositioned
I'll do that, thank you!
We haven't taken ours to the dealer yet. We're going to take Mike's suggestion above and see if the compressor is running when it happens.
I also fully expect the dealer to say they couldn't recreate so we've bought a digital thermometer with a wire with plans to video tape the system behavior while operating normally, then video tape the system temperature when it's blowing hot.
stamp11127
Full Access Members
Next time it acts up take a voltage reading at the battery with the engine at idle.
There is a valid reason for this, the ecm will cut the electrical load if the alternator quits or isn't charging enough. One of the first to go is the ac.
There is a valid reason for this, the ecm will cut the electrical load if the alternator quits or isn't charging enough. One of the first to go is the ac.
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DCS_express
Active Member
I think making a video is a good idea - having a video of my problem saved me from having the "we couldn't recreate the problem" discussion with the dealer. My dealer requested I post the video on YouTube and sent a link to some group in Dearborn, MI.
Just thought I'd give an update....
I did get a digital thermometer and was able to get a video of the system operating normally and another with the system blowing hot air for 15 mins.
And then it stopped doing it. No joke.
So the video that I have which was almost a month ago now is the last time it blew hot for the extended period of time.
Now what it does is blow hot for a few minutes every so often. Otherwise it blows cold immediately.
I haven't taken it to the dealer at this point. I think I can live with it the way it's operating now.