Go Back   Team-BHP > Under the Hood > Technical Stuff


Reply
 
Thread Tools Search this Thread
Old 25th March 2008, 16:34   #1
BHPian
 
Join Date: May 2007
Location: Chandigarh,Patiala ,Rohtak ,Gurgaon
Posts: 78
Thanked: 3 Times
Default Tachometer Needle Vibrates at High Revs - Help

hi guys,

I own a 2001 esteem vx ,clocked 130000km, for some last 2000-3000 km the tachometer needle starts vibrating if the engine rpm go high. I have no clue to why this happens.

I had observed the same phenomena in Peugeot 309 but it was from the very beginning. so did not do anything.

Somebody can please throw some light on th issue and help me retify it.
amannarwal is offline   Reply With Quote
Old 25th March 2008, 16:36   #2
Senior - BHPian
 
Join Date: May 2007
Location: Bangalore
Posts: 3,652
Thanked: 244 Times
Default

Perhaps the tacho cable needs a change. Does it wobble at idling too.
dadu is offline   Reply With Quote
Old 25th March 2008, 22:47   #3
BHPian
 
Join Date: May 2007
Location: Chandigarh,Patiala ,Rohtak ,Gurgaon
Posts: 78
Thanked: 3 Times
Default

no it doesnt wobble while idling
amannarwal is offline   Reply With Quote
Old 26th March 2008, 08:00   #4
BHPian
 
simplythebest's Avatar
 
Join Date: Feb 2008
Location: Coimbatore
Posts: 118
Thanked: 5 Times
Default

Your spark plugs or coil wires could be shot, causing wierd currents in the system.

Just get it checked with a mechanic
simplythebest is offline   Reply With Quote
Old 26th March 2008, 11:12   #5
Senior - BHPian
 
sushrutha's Avatar
 
Join Date: Mar 2006
Location: Chikmagalur/Ban
Posts: 1,702
Thanked: 324 Times
Default

Quote:
Originally Posted by simplythebest View Post
Your spark plugs or coil wires could be shot, causing wierd currents in the system.

Just get it checked with a mechanic
Rightly said .. This might be one of the cause.
Replace those faulty spark plug chords ..
sushrutha is offline   Reply With Quote
Old 26th March 2008, 12:11   #6
GTO
Team-BHP Support
 
GTO's Avatar
 
Join Date: Feb 2004
Location: Bombay
Posts: 47,735
Thanked: 89,313 Times
Default

Could be a problem with the ignition coil too?
GTO is offline   Reply With Quote
Old 26th March 2008, 12:14   #7
Senior - BHPian
 
abhibh's Avatar
 
Join Date: Sep 2005
Location: Back in the HOOD near you!
Posts: 2,767
Thanked: 33 Times
Default

Does the cable wobble when you go over the potholes ?
abhibh is offline   Reply With Quote
Old 26th March 2008, 12:25   #8
Team-BHP Support
 
Vid6639's Avatar
 
Join Date: Jul 2006
Location: Bangalore
Posts: 14,468
Thanked: 19,377 Times
Default

Is it just the cabble or do you actually feel the rpm changing?
Vid6639 is offline   Reply With Quote
Old 26th March 2008, 13:03   #9
BHPian
 
kapilsharma80's Avatar
 
Join Date: Jul 2007
Location: Chandigarh
Posts: 177
Thanked: 25 Times
Default

most likely the curlprit is tacho cable..... also look for any loose joints on either ends of the cable.
kapilsharma80 is offline   Reply With Quote
Old 26th March 2008, 13:10   #10
Senior - BHPian
 
gd1418's Avatar
 
Join Date: May 2006
Location: Gurgaon
Posts: 3,578
Thanked: 655 Times
Default

Precisely at or after what RPM does this wobble occur?

Quote:
Originally Posted by amannarwal View Post
hi guys,

I own a 2001 esteem vx ,clocked 130000km, for some last 2000-3000 km the tachometer needle starts vibrating if the engine rpm go high. I have no clue to why this happens.

I had observed the same phenomena in Peugeot 309 but it was from the very beginning. so did not do anything.

Somebody can please throw some light on th issue and help me retify it.
gd1418 is offline   Reply With Quote
Old 26th March 2008, 16:03   #11
BHPian
 
Join Date: May 2007
Location: Chandigarh,Patiala ,Rohtak ,Gurgaon
Posts: 78
Thanked: 3 Times
Default

i observed yesterday, actually the wobbling occurs at high rpms like 1700 or low rpms of about 800-900 gets a bit stable at the middle.
amannarwal is offline   Reply With Quote
Old 26th March 2008, 17:09   #12
BHPian
 
Join Date: May 2007
Location: Chandigarh,Patiala ,Rohtak ,Gurgaon
Posts: 78
Thanked: 3 Times
Default

sorry guys its the speedometer cable that i was talking of.
amannarwal is offline   Reply With Quote
Old 26th March 2008, 18:20   #13
BHPian
 
Pankaj401's Avatar
 
Join Date: Mar 2006
Location: Bangalore, India
Posts: 216
Thanked: 4 Times
Default

What RPM and at what speeds?

Most likely the speedo cable. The other thing could be the drive gear in the gear-box or the speedo assembly in the instrument cluster..

Last edited by Pankaj401 : 26th March 2008 at 18:21.
Pankaj401 is offline   Reply With Quote
Old 26th March 2008, 22:39   #14
Distinguished - BHPian
 
Join Date: May 2005
Location: KL
Posts: 4,680
Thanked: 3,508 Times
Default

Quote:
Originally Posted by amannarwal View Post
the tachometer needle starts vibrating if the engine rpm go high. I have no clue to why this happens.
Quote:
Originally Posted by amannarwal View Post
sorry guys its the speedometer cable that i was talking of.
Is it the tachometer needle or is it the speedometer needle that is vibrating?

If speedo needle then at what speeds does it vibrate? Does the vibrations stop once you cross a particular speed?
Sankar is offline   Reply With Quote
Old 27th March 2008, 11:01   #15
Newbie
 
msandeep's Avatar
 
Join Date: Dec 2005
Location: Bangalore
Posts: 13
Thanked: 0 Times
Default

Replace the speedometer cable, the vibrations will stop
msandeep is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Zen exhaust spitting lots of carbon powder at high revs after cold start!! devrajman Technical Stuff 32 20th June 2010 08:28
HH Hunk, Bike revs high on it own amtak Motorbikes 20 29th April 2009 16:23
Car Vibrates at high speeds neo316 Technical Stuff 1 4th September 2007 11:56
revs too high during fst 5 mins... babe_on_wheels Technical Stuff 4 16th March 2006 17:09
Clutch Problem - Revs shooting up (Baleno) zaphod Technical Stuff 18 1st April 2005 13:49


All times are GMT +5.5. The time now is 09:14.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks