Mechanical Problems/Vehicle Issues and Fix-it Forum If you've got a problem you just can't figure out, a noise you can't diagnose, or a Check Engine Light that won't go away, ask about it here!

Suspicious of Alternator - Blinker Weirdness and Rough Idle

Thread Tools
 
Search this Thread
 
Old Jun 9, 2015
  #1  
jtdunn4life's Avatar
Thread Starter
Registered!!
 
Joined: Sep 2014
Posts: 15
Likes: 0
Rep Power: 0
jtdunn4life is an unknown quantity at this point
Suspicious of Alternator - Blinker Weirdness and Rough Idle

2000 Civic DX Coupe

Rough Idle and the left blinker (only left) varies speed depending on what else is going on. If no headlights and no brakes it blinks faster than normal. With headlights on or brakes applied it blinks slower than normal.

Wondering if diode(s) in alternator is going bad causing a/c ripple in the system. No?

Any way to test it without removing the alternator?

Last note... I do have an aftermarket audio system with amps, etc. but it has been installed for years without these symptoms.
Reply
Old Jun 9, 2015
  #2  
ezone's Avatar
If you think a good mechanic is expensive, try hiring a bad one
 
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519
ezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond repute
Re: Suspicious of Alternator - Blinker Weirdness and Rough Idle

Any way to test it without removing the alternator?
Any halfway decent shop should be able to test it in the car.
Reply
Old Jun 14, 2015
  #3  
Wankenstein's Avatar
OF top 99.5% creator (Formerly of the Puffinblunts variety)
 
Joined: May 2012
Posts: 3,634
Likes: 109
Rep Power: 211
Wankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud ofWankenstein has much to be proud of
Re: Suspicious of Alternator - Blinker Weirdness and Rough Idle

Have alternator checked.
Clean all ground locations.
Reset ECU... http://www.clubcivic.com/forum/threa...eset-ecu.1180/

If you do an ECU reset after disconnecting negative battery terminal: Instead of waiting 5 minutes..just turn on your headlights, flash brights, and push brake pedal a few times to drain residual charge,,reattach negative start car.
Reply
Old Oct 27, 2015
  #4  
shumatew's Avatar
Registered!!
 
Joined: Oct 2015
Posts: 1
Likes: 0
Rep Power: 0
shumatew is an unknown quantity at this point
Re: Suspicious of Alternator - Blinker Weirdness and Rough Idle

Originally Posted by jtdunn4life
2000 Civic DX Coupe

Rough Idle and the left blinker (only left) varies speed depending on what else is going on. If no headlights and no brakes it blinks faster than normal. With headlights on or brakes applied it blinks slower than normal.

Wondering if diode(s) in alternator is going bad causing a/c ripple in the system. No?

Any way to test it without removing the alternator?

Last note... I do have an aftermarket audio system with amps, etc. but it has been installed for years without these symptoms.
Just an fyi, the left blinker sounds more like a bad relay.
Reply
Related Topics
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
jzhartman
Mechanical Problems/Vehicle Issues and Fix-it Forum
22
Jul 23, 2015 10:42 PM
1khilari
6th Generation Civic 1996 - 2000
12
Jul 9, 2015 08:12 PM
jzhartman
6th Generation Civic 1996 - 2000
2
Jul 9, 2015 04:56 PM
trellex
Electrical
4
Jul 9, 2015 12:01 PM
cgavin1
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
Jul 7, 2015 07:10 AM




All times are GMT -5. The time now is 07:19 PM.