Chevy Venture 2000 lights flicker


Old 09-25-16, 06:33 AM
Thread Starter
Join Date: Nov 2007
Location: USA
Posts: 215
Chevy Venture 2000 lights flicker

A mechanic checked the alternator and said it was working fine. Dash light, head lights all flicker constantly. Also, the fan speed coincides with the flicker.

Any ideas?
Sponsored Links
Old 09-25-16, 06:43 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,968
Check the main connection from the battery to the fuse box at the fender well. Also check the ground connection not only to the engine, but to the body. Remove them, clean them and the surface to which it is attached with a wire brush and reattach them.
Old 09-25-16, 07:01 AM
ukrbyk's Avatar
Join Date: Mar 2010
Location: USA/ Pacific NW
Posts: 3,339
One of your electric relays is bad or going bad or has bad contact.
BTW, does it flicker with engine running only or with engine turned off too?
Old 10-03-16, 03:57 PM
Thread Starter
Join Date: Nov 2007
Location: USA
Posts: 215
no, it only flickers when the engine is running. when engine is turned off, lights appear to work fine. Mechanic believes it's the alternator. Says if it's the ground, the battery would be going dead. The flickering has been going on for several months now, at least 5 months.

He said his alternator checker is not a good one (sophisticated??).
Old 10-03-16, 04:23 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 46,721
Actually the lights flickering on a GM truck is pretty common. Usually the flicker is very noticeable at idle but as the engine speed increases it's no longer noticeable as the alternator output increases.
Old 10-03-16, 04:25 PM
pugsl's Avatar
Forum Topic Moderator
Join Date: Mar 2008
Location: Raleigh, NC
Posts: 7,955
In less your mechanic is a electrical specialist I would not trust him with this problem. Find a auto electrical shop. May not be a cheap problem.

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

Thread Tools
Search this Thread
Display Modes