Main IndexAuto Repair Home Search Posts SEARCH
POSTS 		Who's Online WHO'S
ONLINE 		Log in LOG
IN




Automotive Repair
Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:   
  Login
  Sign up here!



Latest Forum Post
with_replies.gif image   1989 toyota pickup 3.0 crank no start
I have a 1989 toyota pickup 3.0 crank no...

with_replies.gif image   Strut spring orientation and strut mount tension nut
2017 Nissan rogue awd 2.5 L Put in Monro...

with_replies.gif image   Transmission stuck in part, I have tried everything
So I'm working on my elderly fathers 201...

with_replies.gif image   2017 dodge journey LED headlights on/off randomly
Year of vehicle 2017 Make of vehicle dod...

with_replies.gif image   Kia Soul starter replacement issues!
Okay so my car is a 2010 Kia soul 2.0 en...

hot_with_replies.gif image   Please Help - Knock sound & engine fail
Hi all, Hoping to get some insight and ...

with_replies.gif image   multiple warning lights
2013 GMC Terrain 130,000 miles 4 cylinde...

with_replies.gif image   03 alero no low speed blower
Good day everyone, I have a 2003 Olds a...

with_replies.gif image   04 Chevy 2500hd tail light issues
Help!!! I have changed my combo switch...

with_replies.gif image   1999 Grand Caravan Sport not starting.
Hi. I'm new here. I hope someone can hel...




Car vent speed irregularities

Search for (search options)
 



JeremyJ
New User

Sep 5, 2019, 12:00 PM

Post #1 of 4 (890 views)
Car vent speed irregularities Sign In
I have a 2013 Chrysler 300 and I don't know how to pinpoint the issue that I'm having. The vent speed when on max A/C will sometimes decrease on it's own to about the lowest air speed possible and stay there for awhile before returning and then repeating the process, until it will either stay on the highest air speed or stay on the lowest speed.

Any help would be appreciated as even my father in-law that works on his own trucks and equipment doesn't know what the issue is.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 5, 2019, 12:16 PM

Post #2 of 4 (882 views)
Re: Car vent speed irregularities Sign In
Most likely an overheated connector causing a poor connection at either the blower motor or the blower motor resister.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



JeremyJ
New User

Sep 5, 2019, 12:50 PM

Post #3 of 4 (875 views)
Re: Car vent speed irregularities Sign In
So I need to check all the connections to see if it's receiving a poor connection at the motor or resistor? I was assuming it was something with the blower motor or resistor, but I wasn't sure what was happening. I have had a resistor go bad before, but it caused different issues in another vehicle where it was stuck on one speed.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 5, 2019, 1:09 PM

Post #4 of 4 (869 views)
Re: Car vent speed irregularities Sign In
The resister is not burned out. The contacts in the plug get hot and weaken the contact increasing resistance. With the blower turned on full speed, start pulling and pushing the connectors until you see the motor speed responds.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.






 
 
 






Search for (options) Privacy Sitemap