Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

1989 camaro rpm issues

Old 09-16-2015, 03:17 PM
  #1  
Junior Member
Thread Starter
 
wisemanz28's Avatar
 
Join Date: Apr 2014
Posts: 46
Likes: 0
Received 1 Like on 1 Post
1989 camaro rpm issues

I recently had my radiator go bad on the way to work. By the time I got pulled off the road my temp gauge was at 260 and my engine light just came on when I was able to shut off the car. After changing the radiator while driving the car I noticed at 70 mph my rpm was 3800. I'm sure the transmission is in overdrive. The car runs and drives fine but it seems like the rpm's are running high. Before the cooling issue the car was at about 2000 rpm at 70 mph. Does anyone know what could of happened?

Last edited by wisemanz28; 09-16-2015 at 07:04 PM.
Old 09-16-2015, 06:32 PM
  #2  
Supreme Member

iTrader: (1)
 
sofakingdom's Avatar
 
Join Date: Sep 2005
Posts: 26,027
Received 1,662 Likes on 1,261 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 1989 camaro rpm issues

Sounds like the "tach" (trim package in dash with wavy pointer, loosely correlated at times with engine RPM, designed and intended to promote "sporty" image) broke.

Not related to the cooling system issue.
Old 09-20-2015, 01:09 PM
  #3  
Junior Member
Thread Starter
 
wisemanz28's Avatar
 
Join Date: Apr 2014
Posts: 46
Likes: 0
Received 1 Like on 1 Post
Re: 1989 camaro rpm issues

Is there a way to check the tach ?
Old 09-20-2015, 01:26 PM
  #4  
Supreme Member

iTrader: (1)
 
sofakingdom's Avatar
 
Join Date: Sep 2005
Posts: 26,027
Received 1,662 Likes on 1,261 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 1989 camaro rpm issues

Check it against a piece of actual test equipment. Some timing lights include a tach for example.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
camaro11j
Transmissions and Drivetrain
4
09-19-2018 08:49 AM
84z96L31vortec
Tech / General Engine
7
08-20-2017 12:16 AM
84z96L31vortec
North East Region
1
08-10-2015 08:27 PM
Rustyweb7
Tech / General Engine
6
08-09-2015 03:05 AM
antares57
History / Originality
4
08-06-2015 07:47 AM


Thread Tools
Search this Thread
Quick Reply: 1989 camaro rpm issues



All times are GMT -5. The time now is 08:08 AM.