SPONSORED LINKS

A/C switch causes motor to rev up

Tiny
TONYJR84
  • MEMBER
  • 1995 MITSUBISHI GALANT
  • 106,000 MILES
Can rev up and turn a/c off and it runs normal. Which sometimes if airs on and it starts revving up and down I have to turn blower switch to high for it to stop. Can u tell me exactly what part I need to fix my little car? I can get an a/c switch ordered tomorrow but dont know exactly what I need
SPONSORED LINKS
Saturday, October 19th, 2013 AT 8:06 PM

4 Replies

Tiny
TY ANDERSON
  • MECHANIC
  • 719 POSTS
What motor are you talking about engine or blower motor? Is the engine reving up and down or is the blower motor reving? I just need more specifics. Let me know
Was this
answer
helpful?
Yes
No
Saturday, October 19th, 2013 AT 8:33 PM
Tiny
TONYJR84
  • MEMBER
  • 2 POSTS
Sorry! It's the engine. 2.4 litre.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, October 19th, 2013 AT 9:14 PM
Tiny
TY ANDERSON
  • MECHANIC
  • 719 POSTS
You may have a charging system issue. Most retail auto parts suppliers will test the charging system for free so have it tested.
Was this
answer
helpful?
Yes
No
Tuesday, October 22nd, 2013 AT 9:23 AM
Tiny
TY ANDERSON
  • MECHANIC
  • 719 POSTS
It is normal for the engine RPMs to increase when the a/c is switched on. The a/c compressor adds a extra load on the engine so the the RPMs or engine speed increases to meet the demand of the compressor.
Was this
answer
helpful?
Yes
No
Tuesday, October 22nd, 2013 AT 9:26 AM

Please login or register to post a reply.

Related Air Conditioner Switch Content

How to Use a Test Light
VIDEO
How to Use a Test Light
Instructional repair video
VIEW MORE

Sponsored links