Crossfire Heating problems

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Nov 16, 2022 | 01:26 AM

#21 (permalink)

Iskender

Thread Starter

Joined: Feb 2022

Posts: 8

Likes: 0

From: Baku

Re: Crossfire Heating problems

Dear Forum members,

Thank you all for support and valuable answers - highly appreciate. Regarding heating I have disassembled duo valve and found that one of valve simply stacked - lubricant and some force help me solve issue completely and hope forever. However there is still problem with blower fan - it is operating as follow (no matter what regime is selected "HEAT" or "COOL"):

1. once start engine and turn on fan **** within 3 second fan begins to operate as normal
2. after 1 minute it is stops for next 5-10 minutes
3. operation return to normal for next 1 minutes and stops again for 5-10 minutes
4. after this "preheating" fan become working at normal (even if I turn off fan or turn off engine and then start it again)

it is seems that something should be "preheating" before normal operation. Could you please help?

Thank you
Iskender

Oct 19, 2023 | 02:42 PM

#22 (permalink)

dedwards0323

Senior Member

Joined: Nov 2008

Posts: 8,469

Likes: 841

From: Upstate SC

Re: Crossfire Heating problems

Quote:

Originally Posted by DTMenace

Iskender
Welcome to the forum from Baku Azerbaijan....
Before we attempt to correct your heating problem, try this as a possible solution to your heating problem by taking these steps

Start your car
Adjust the interior heater controls to these settings
1. Set the thumb wheels on the highest heat settings to maximum red
2. Set the fan speed to maximum speed
3. Exit the car and close the doors, do not open the windows
4. Permit the car to run for 20-30 minutes
After the run time, enter the car and turnoff all of the heater settings
Adjust the heater controls to your normal settings and turn the heater to the #2 setting speed and see if the vents work properly

I hope this works for you; it has worked for me in the past...
Dennis
DTMenace

Quote:

Originally Posted by Ronman

How often do you have to do this? It has worked for me too. Why do you say do not open the windows?

While running with the 'big dogs" this past weekend, the HVAC system started acting up. Whenever I switched on the A/C, the wife got cold air on the PS, but I was still getting warm air on the DS. After a few minutes, I moved the temp wheel on the DS to maybe a midpoint setting, left it there for a few minutes and then returned it to the cold setting. I started to get cold air on the DS vents. Found your posts above & sounded like the issue I was having.

So today I started the car, put the HVAC system in the wide-open heating settings, got out & let the car run for 25 minutes with the windows up. When this was finished, I set the HVAC system back to max cool and the system performed just like it should have. Saved this in my Crossfire library for future reference. I figure this is a Preventive Maintenance task that I need to do every year or 2. After all, it's been 16 years since my coupe was born, 15 since I've owned it, and I haven't done this operating task until today!

Thanks, Dennis E.

Last edited by dedwards0323; Oct 19, 2023 at 05:23 PM.

Oct 30, 2023 | 05:37 PM

#23 (permalink)

DTMenace

Senior Member

Joined: Apr 2006

Posts: 2,509

Likes: 205

From: West Chester, PA.

Re: Crossfire Heating problems

Thank you doubting "Thomas"...
From one Dennis to another Dennis!
Dennis
DTMenace

Oct 30, 2023 | 06:50 PM

#24 (permalink)

dedwards0323

Senior Member

Joined: Nov 2008

Posts: 8,469

Likes: 841

From: Upstate SC

Re: Crossfire Heating problems

Quote:

Originally Posted by dedwards0323

So today I started the car, put the HVAC system in the wide-open heating settings, got out & let the car run for 25 minutes with the windows up. When this was finished, I set the HVAC system back to max cool and the system performed just like it should have. Saved this in my Crossfire library for future reference. I figure this is a Preventive Maintenance task that I need to do every year or 2. After all, it's been 16 years since my coupe was born, 15 since I've owned it, and I haven't done this operating task until today!

Thanks, Dennis E.

Took the time over the past weekend to check the operation of the HVAC in the 2007 Coupe. System still performs like it's supposed to. Looks like the heater duo valves have been cleared of any blockage for now.

Last edited by dedwards0323; Oct 30, 2023 at 06:53 PM.