Climate Control problem?

[RaelOM]

So last night on my way home from class, I hit traffic and was at a 2mph crawl and the climate control went from 72 degree's and heat to pumping out COLD air. I tried turnign off the AC, then the system, then the car, none of it worked.

Eventually I was able to hit a turn around in the highway and got out of the traffic and as soon as I accelerated significantly the heat came back on?

What gives? That obviously can't be normal.

[M4T5]

That is strange. How cold was it outside when this happened?The cooling system could have possibly closed the coolant loop at the thermostat until the proper running temp was achieved. You could have a bad thermostat, but I'm just throwing stuff out there. It sounds more like a malfunctioning sensor in the HVAC system. You should bring this issue to your local Infiniti service managers attention. He may know what could have happened and have a remedy for it.

J

[M4T5]

Not sure is this link will work, but it will help you do self diagnostics: http://www.nicoclub.com/FSM/M/2007_M45-M35/atc.pdf

J

[M4T5]

Link works!Good luck!

J

[ArbitrageMan]

So last night on my way home from class, I hit traffic and was at a 2mph crawl and the climate control went from 72 degree's and heat to pumping out COLD air. I tried turnign off the AC, then the system, then the car, none of it worked.

Eventually I was able to hit a turn around in the highway and got out of the traffic and as soon as I accelerated significantly the heat came back on?

What gives? That obviously can't be normal.

Definitely sounds like your cars thermostat. If it does it again, take a look at your coolant temp gauge, see if its lower than normal operating temp.

When I lived in Buffalo, I had an issue on a car where the car would be warm driving, but as soon as I slowed down or stopped, where the car wasnt producing power, the warm air would turn to cold.

[brudje]

I have the same issue with my 2006.

I am going to make an appointment with the dealer on this one...

[RaelOM]

Definitely sounds like your cars thermostat. If it does it again, take a look at your coolant temp gauge, see if its lower than normal operating temp.

When I lived in Buffalo, I had an issue on a car where the car would be warm driving, but as soon as I slowed down or stopped, where the car wasnt producing power, the warm air would turn to cold.

I did look at my engine temp thinking it could be the t-stat (Which it still could be) and the gauge was where I expected it to be.

So I have no idea what it could be.

[Excellent09]

A month ago i have experience the same thing with my 06 M35x,I took it in to the dealer and they performed a radiator flush(bleed the system) I was told it happen because i had an air pocket in the radiator

[M4T5]

That's a good post and thought in reference to this issue. I thought about it too, but didn't post that possibility. How many miles are on you M raelOM? Have you had your 30,000mi service done yet? I believe the coolant flush is recommended at that mileage. Might be something to consider doing if you have not yet done it.

J

[RaelOM]

A month ago i have experience the same thing with my 06 M35x,I took it in to the dealer and they performed a radiator flush(bleed the system) I was told it happen because i had an air pocket in the radiator

My tech just told me the same exact thing. So hopefully that is it.

I'm also going to try to negotiate the steering wheel again and now my power steering is acting goofy.

It'll make a hum when I turn it and sometimes I lose PS all togeather, so we're going to go over that as well.

(trying to replace as much crap as I can. )

[RaelOM]

51670 miles. All service performed at recommended intervals.

Next on the block is the 60K

[M4T5]

A month ago i have experience the same thing with my 06 M35x,I took it in to the dealer and they performed a radiator flush(bleed the system) I was told it happen because i had an air pocket in the radiator

What I want to know is, how in the he11 does an air pocket just form up out of the blue???? I've never had cars that had coolant issues. I mean, you guys are changing the coolant out at 30K mi intervals! What's the deal? Maybe those intervals are too soon. I have always done 60-75K mi intervals for coolant flushes on my previous vehicles without a hitch. Is it really imperative to change the coolant out at 30K mi?

J

[gigatt]

06 M35 55K>When trying to warm the inside, I was getting warm air on drivers side and cool air on pass side, even when I had the temp set to 90* on pass side, it will blow cool air and when trying to cool the car, same thing on drivers side works fine, cools accordingly and pass side warms up even when temp set to 60*Took it to dealer and they had my car for 11 days, was pissed coz they missed to not know what they were doing....eventually they told me they got it fixed after 17hrs "warranty repair" of labor, they got it resolved ....Last night going back home, problem reappeared again, im taking it in tomorrow, I called the Service Manager and expressed my frustration and said will look into it.....I asked him, last time "2 weeks ago" when they claim to have fixed it, they replace a/c control air box, sensors and who know what and now again im having same problem.....Not a happy camper right now