A/C starts intermittently or @ high speeds only.

Asked by Sep 17, 2014 at 07:50 PM about the 2007 Nissan Sentra Base

Question type: Maintenance & Repair

My wife's Nissan sentra a/c is acting up.
After ignition and starting vehicle a/c will
sometimes work, sometimes not. If it
doesn't come out when car starts  she has
to drive at high speeds, a/c will come on
slowly, then full force or to dial setting. She
has already replaced blower, that wasn't it.

Could it be blower relay?

Why would this happen?

2 Answers


If it was the relay, resistor or fuse, then the issue would be on-off. I would suggest trying a third blower motor. Maybe the replacement one has also an issue.

2 of 2 people found this helpful.
Best Answer Mark helpful

Thank you much! I replaced the motor, and it is working now! ( I did it myself too!.... wow so many pieces to take apart. You think theyd make it easier!)

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