CorvetteForum - Chevrolet Corvette Forum Discussion

C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

A/C compressor turns off below 500RPM

Thread Tools
 
Search this Thread
 
Old 06-20-2018, 05:49 PM
  #1  
Andres Delapaz
Intermediate
Thread Starter
 
Andres Delapaz's Avatar
 
Member Since: Jan 2018
Posts: 39
Received 10 Likes on 6 Posts
Default A/C compressor turns off below 500RPM
My AC compressor turns off if my RPMs drop below 500. Is this normal for the C7 M7?
Andres Delapaz is offline  
Reply Like
Old 06-20-2018, 06:04 PM
  #2  
JJLAI724
Pro
 
JJLAI724's Avatar
 
Member Since: Nov 2014
Location: Milpitas CA
Posts: 648
Received 146 Likes on 99 Posts
Default
When do you go below 500 RPM? Idle is a 700-800 RPM? The AC compressor does cycle on and off at low RPM's to prevent engine overheating.
JJLAI724 is offline  
Reply Like
The following users liked this post:
Avanti (06-20-2018)
Old 06-20-2018, 06:49 PM
  #3  
Andres Delapaz
Intermediate
Thread Starter
 
Andres Delapaz's Avatar
 
Member Since: Jan 2018
Posts: 39
Received 10 Likes on 6 Posts
Default
Usually happens when I don't blip the throttle to take off in 1st gear.
Andres Delapaz is offline  
Reply Like
Old 06-20-2018, 06:54 PM
  #4  
Jaykoh-Z51
Drifting
 
Jaykoh-Z51's Avatar
 
Member Since: Oct 2014
Location: Atlanta, GA
Posts: 1,712
Likes: 0
Received 376 Likes on 265 Posts
Default
Yep. Normal. When the engine gets to a certain threshold where it sorta gets in that lugging range, the compressor will drop offline too remove engine drag
Jaykoh-Z51 is offline  
Reply Like
Old 06-20-2018, 06:55 PM
  #5  
PatternDayTrader
Race Director
 
PatternDayTrader's Avatar
 
Member Since: Oct 2008
Location: Lansing MI
Posts: 17,982
Received 1,056 Likes on 769 Posts

Default
Originally Posted by Andres Delapaz
Usually happens when I don't blip the throttle to take off in 1st gear.
Sounds normal.
I'm sure the pcm is trying to reduce the load on the engine so it wont stall.
PatternDayTrader is offline  
Reply Like
Old 06-21-2018, 02:00 AM
  #6  
jimmbbo
Melting Slicks

 
jimmbbo's Avatar
 
Member Since: Dec 2017
Location: Central Commiefornia
Posts: 2,011
Received 950 Likes on 609 Posts
Default
Normal - Protection to keep engine running without lugging or dying...
Since idle is 600-700 RPM, unsure how it would see 500 RPM unless driving out of normal RPM range..
jimmbbo is offline  
Reply Like
Old 06-21-2018, 03:24 AM
  #7  
UsernameProtected
Burning Brakes
 
UsernameProtected's Avatar
 
Member Since: Mar 2014
Location: Greater Cincinnati Area
Posts: 1,140
Received 405 Likes on 248 Posts

Default
I didn't know the engine would even run that slowly.
UsernameProtected is offline  
Reply Like
Old 06-21-2018, 06:41 AM
  #8  
JerryU
E-Ray, 3LZ, ZER, LIFT
Support Corvetteforum!
 
JerryU's Avatar
 
Member Since: Sep 2007
Location: NE South Carolina
Posts: 29,492
Received 9,622 Likes on 6,626 Posts

Default
Originally Posted by Andres Delapaz
My AC compressor turns off if my RPMs drop below 500. Is this normal for the C7 M7?
First I have heard of that happening! But if I were the engine sure would want them to remove that ~3 hp and shut off the alternator as well! If not I'd show you and stall!
Last edited by JerryU; 06-21-2018 at 07:42 AM.
JerryU is online now  
Reply Like

Get notified of new replies

To A/C compressor turns off below 500RPM

Back to Subforum
C7 General Discussion
View Next Unread
Broken valve springs




Click for Advanced Search
Quick Reply: A/C compressor turns off below 500RPM


Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 11:35 AM.