2nd Generation S-series (1995-2005) Tech Discuss 2nd generation S-series (1995-2005) general tech topics here.

rpm

Thread Tools
 
Search this Thread
 
Old Jan 21, 2011 | 11:03 PM
  #1  
chevycrazy2011's Avatar
Thread Starter
|
Beginning Member
Joined: Jan 2011
Posts: 45
From: live oak,fl
chevycrazy2011 is on a distinguished road
Default rpm

i have a 96 4 door 4x4 is 2500rpm normal for 60 mph?
 
Old Jan 22, 2011 | 12:19 AM
  #2  
AJBert's Avatar
BF Veteran
Joined: Oct 2007
Posts: 2,871
From: In the Colorado mountains
AJBert is just really niceAJBert is just really niceAJBert is just really niceAJBert is just really nice
Default

Depends.

What size tires and gears do you have?
 
Old Jan 22, 2011 | 12:23 AM
  #3  
racsan's Avatar
Junior Member
Joined: Jun 2010
Posts: 310
From: central ohio
racsan is on a distinguished road
Default

like it was stated, depends on tire size/gear ratio, but that seems rather high to me, mine in overdrive at 55 mph is only about 1,600 rpm in 3rd its somewhere around 2,100 rpm thats with 3.42 gears and 235-70-15 tires. maybe youve lost overdrive?
 
Old Jan 22, 2011 | 09:59 AM
  #4  
chevycrazy2011's Avatar
Thread Starter
|
Beginning Member
Joined: Jan 2011
Posts: 45
From: live oak,fl
chevycrazy2011 is on a distinguished road
Default

Originally Posted by racsan
like it was stated, depends on tire size/gear ratio, but that seems rather high to me, mine in overdrive at 55 mph is only about 1,600 rpm in 3rd its somewhere around 2,100 rpm thats with 3.42 gears and 235-70-15 tires. maybe youve lost overdrive?

i have 235-75-15 i dont know the gear rotio what ever came in it stock the tranny was rebuilt at one time so i wouldn't think the od would be out but something to check out.
 
Old Jan 22, 2011 | 01:14 PM
  #5  
blazinloud's Avatar
BF Veteran
Joined: Feb 2006
Posts: 3,333
From: Saskatoon, Canada
blazinloud is an unknown quantity at this point
Default

sounds high, torque converter not locking in?
 
Old Jan 22, 2011 | 04:11 PM
  #6  
AJBert's Avatar
BF Veteran
Joined: Oct 2007
Posts: 2,871
From: In the Colorado mountains
AJBert is just really niceAJBert is just really niceAJBert is just really niceAJBert is just really nice
Default

Sure sounds like it isn't even getting into 4th gear if everything is stock.
 
Old Jan 23, 2011 | 10:38 AM
  #7  
hcii's Avatar
Beginning Member
Joined: Nov 2008
Posts: 17
From:
hcii is an unknown quantity at this point
Default

Originally Posted by blazinloud
sounds high, torque converter not locking in?
You can check the torque converter by gently pressing the brake pedal - just enough to make the brake lights come on - and see if your rpm increases about 200 - 300 rpm. If it does, then the converter is locking up properly, and overdrive is working. The torque won't lock up if it's failed, obviously, nor will it work if the tranny isn't going into overdrive either.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mcaanda
Engine & Transmission
1
Dec 15, 2009 08:31 PM
budiblazer
General Tech Help
4
Jun 21, 2006 10:01 PM
Blazer96
General Tech Help
4
Mar 18, 2006 02:09 AM
burcham
2nd Generation S-series (1995-2005) Tech
4
Nov 22, 2005 05:21 PM
2001Blazer4x4
2nd Generation S-series (1995-2005) Tech
2
Apr 20, 2005 12:09 AM




All times are GMT -5. The time now is 09:55 AM.