civic ex, tachometer jumps, problem? - Honda-Tech - Honda Forum Discussion


Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

civic ex, tachometer jumps, problem?

Reply
 
 
 
Thread Tools Search this Thread
Old 05-23-2009, 12:20 AM   #1
Honda-Tech Member
Thread Starter
 
iCollectStraws's Avatar
 
Join Date: Apr 2008
Posts: 77
Default civic ex, tachometer jumps, problem?

I don't know if it's a problem or not (my first stick shift and I used to never take cars to such a high rpm) but anywhere from 5500 to 6500rpm at times the tachometer will jump and on a side note; up until 3k the car seems to lack power. Just today I hit about 5800 and the tach jumped up to just under 7k and continued to rise, the motor stayed constant (acceleration felt smooth) and it was almost as if the tach didn't even match with the engines true rpm. It's not a constant jumping, sometimes it will and sometimes it won't. I tried to get it on video on the way home but of course, the tach didn't jump. Recently I replaced the spark plugs and spark plug wires with Accel 8mm wires, the jumping seemed to occur less often and not as extreme, it was much worse with the stock spark plug wires. Correct me if I'm wrong, but when accelerating even under full throttle the tachometer should be rather stable right?

Edit: The motor btw is the stock d16, it was rebuilt awhile ago though
iCollectStraws is offline   Reply With Quote
Old 05-23-2009, 03:12 AM   #2
Honda-Tech Member
 
760dc4's Avatar
 
Join Date: May 2009
Location: 760
Posts: 27
Default Re: civic ex, tachometer jumps, problem?

get alternator checked. had the same problem on my 98ex. alternator was bad.
760dc4 is offline   Reply With Quote
Old 05-23-2009, 03:26 AM   #3
Honda-Tech Member
 
1992Si's Avatar
 
Join Date: Aug 2003
Location: Tolland, CT, USA
Posts: 4,903
Default Re: civic ex, tachometer jumps, problem?

Go buy a re-built dizzy from the auto parts store. The tach jumping is the first sign of more dizzy issue to come.

Trust me, been there done this...the hard way.
1992Si is offline   Reply With Quote
Old 05-23-2009, 09:25 AM   #4
Honda-Tech Member
Thread Starter
 
iCollectStraws's Avatar
 
Join Date: Apr 2008
Posts: 77
Default Re: civic ex, tachometer jumps, problem?

Thats great, it's nice to know I could have a bad alternator or distributor cause of a small tach issue.

About the distributor; that could be the problem even though the engine runs/idles smoothly?
iCollectStraws is offline   Reply With Quote
Old 05-23-2009, 09:31 AM   #5
Honda-Tech Member
 
Join Date: Feb 2008
Posts: 45,260
Default Re: civic ex, tachometer jumps, problem?

Quote:
Originally Posted by iCollectStraws View Post
About the distributor; that could be the problem even though the engine runs/idles smoothly?
Yes. Unless this is a 99-00 Civic, the tach signal comes from the igniter unit/ICM in the distributor. Jumping tach signals can be an early sign that the ICM is on the way out.

What year Civic?
Former User is offline   Reply With Quote
Old 05-23-2009, 02:01 PM   #6
Honda-Tech Member
Thread Starter
 
iCollectStraws's Avatar
 
Join Date: Apr 2008
Posts: 77
Default Re: civic ex, tachometer jumps, problem?

Quote:
Originally Posted by [email protected] View Post
What year Civic?
1995 ex sedan
iCollectStraws is offline   Reply With Quote
Old 05-23-2009, 02:04 PM   #7
Honda-Tech Member
 
-Gambit-'s Avatar
 
Join Date: Nov 2001
Location: Las Vegas, u.s
Posts: 18,267
Default Re: civic ex, tachometer jumps, problem?

sounds like your ingnitor inside of your dizzy is going out
-Gambit- is offline   Reply With Quote
Old 05-23-2009, 02:09 PM   #8
Honda-Tech Member
 
92eg_h22's Avatar
 
Join Date: May 2008
Location: $WED $QUAD
Posts: 712
Default Re: civic ex, tachometer jumps, problem?

my temp gauge was jumping with the RPMs...the alternator tensioner was loose and it caused the cars electrical system to die...check the alternator then have it tested at auto dome for free.
92eg_h22 is offline   Reply With Quote
Old 05-23-2009, 02:29 PM   #9
Junior Member
 
shailoche's Avatar
 
Join Date: Dec 2006
Location: Austin, TX, USA
Posts: 257
Default Re: civic ex, tachometer jumps, problem?

I had a similar problem when clutch was going out. I would step on the gas and the rpms would rise but the engine stayed constant. This may be similar too what you have going on....maybe. Since if the clutch flywheel is slipping you will see a jump in the rpms and no noticeable speed increase.
shailoche is offline   Reply With Quote
Old 05-23-2009, 02:56 PM   #10
Honda-Tech Member
 
1992Si's Avatar
 
Join Date: Aug 2003
Location: Tolland, CT, USA
Posts: 4,903
Default Re: civic ex, tachometer jumps, problem?

GO BUY A REBUILT DIZZY.
1992Si is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
D16Z6 Weak spark, no voltage to ICM, Jumping TACH boozer Honda Civic / Del Sol (1992 - 2000) 3 09-14-2015 04:15 PM
Weak spark, no voltage to ICM. Jumping TACH. boozer Tech / Misc 0 09-14-2015 11:47 AM
B18A swap in Del Sol, trying to iron out some electronics bugs Ecky Honda Civic / Del Sol (1992 - 2000) 6 09-22-2011 07:38 PM
Stalls while driving; tach fluctuates 60grit All Motor / Naturally Aspirated 5 05-12-2011 01:59 PM
Tachometer Jumping l337h4l Tech / Misc 6 12-13-2009 08:52 PM


Tags
02, 2002, 99, civic, d16, honda, jumping, jumps, problem, problems, signal, start, tach, tachometer, wont

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 01:42 PM.


 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: