DieselSlug
Well-Known Member
Hello all,
I have had an issue for a year or two now with something in my heater box. The issue has come and gone about 2-3 times and is back again.
When I start the truck something in the box makes a "flapping" sound. This sound will go on for 20-30 seconds and then stop. But if I hit the recirc button it will stop, but then start again a few seconds later. It does the exact same thing when you shut the truck off.
Its been doing this for 2 weeks now and is driving me nuts! Every time I start or stop the truck everyone around me looks at me like its a ticking time bomb.
You can hear it in the passenger cowl area too under the wiper as well as inside where it is the loudest.
I wonder if it has anything to do with the recirc door as when iI mess with the buttons it stops the noise momentarily. All heater functions work normally.
I am going to try and get a video of this tonight to help explain.
Thanks!
I have had an issue for a year or two now with something in my heater box. The issue has come and gone about 2-3 times and is back again.
When I start the truck something in the box makes a "flapping" sound. This sound will go on for 20-30 seconds and then stop. But if I hit the recirc button it will stop, but then start again a few seconds later. It does the exact same thing when you shut the truck off.
Its been doing this for 2 weeks now and is driving me nuts! Every time I start or stop the truck everyone around me looks at me like its a ticking time bomb.
You can hear it in the passenger cowl area too under the wiper as well as inside where it is the loudest.
I wonder if it has anything to do with the recirc door as when iI mess with the buttons it stops the noise momentarily. All heater functions work normally.
I am going to try and get a video of this tonight to help explain.
Thanks!
