Go Back   Chevrolet Forum - Chevy Enthusiasts Forums > Current Chevrolet Car Models > Impala
Sign in using an external account
Register Forgot Password?
Search

Impala While undergoing many facelifts in its history, the Impala has proved itself to both civilians and police forces as one of the most capable 4-door cars GM has ever offered. Currently moving towards its 10th generation the Impala is one of the longest lasting and popular models.

2014 Chevrolet Impala
Includes: Bel-air
Platform: B-body & W-body

Reply
 
 
 
 
LinkBack Thread Tools
  #1  
Old 01-31-2007, 12:16 PM
 
Join Date: Jan 2007
Posts: 3
Default Speedo and Tach haywire!!! 2004 Impala

o.k. how to explain....after driving for 45 min to an hour, my tach and speedo loose track of what is going on. They do not respond properly and give false readings. The tack will keep climbing pasttop rangealmost all the way back to zero like it forgets where home is. The speedo will either lock into a random location or steadily read less and less in proportion to the actual speed. At one point it was reading 5 mph when I know I was going at least 45 mph. Normally, shutting the car down for a period of tim will reset both guages. Today, cruising down the freeway, I was traveling along at approx. 77 mph when I came upon a state patrol. I backed the speed down, but the tach and the speedo stayed in that position. They didn't even move when I came to a complete stop. I've found that I can get them back to "home" position (after sitting for a half hour or so) by turning the ignition on and off about 20 times without firing the engine. Each time I turn the key, the guages drop a little toward "home".

Also, all other guages work properly. No check engine light or performance problems.

ANY IDEAS???
Register today for free or log-in if already registered to remove this ad!
Reply With Quote
  #2  
Old 02-24-2007, 11:36 PM
 
Join Date: Feb 2007
Location:
Posts: 5
Default RE: Speedo and Tach haywire!!! 2004 Impala

I just bought my 2004 and im having the sameproblems. I'll be sitting still and it reads i'm going 120 or faster. I dont have a tach so i dont know what you mean by that either. I could use some imput too. If you find anything out let me know and if I find out anything I'll let you know.
__________________
Eric B Carson
Reply With Quote
  #3  
Old 05-08-2007, 12:29 AM
 
Join Date: May 2007
Location:
Posts: 1
Default RE: Speedo and Tach haywire!!! 2004 Impala

Hey,

I was having a smilar problem. I have a 2004, I was driving back to New Jersey from Florida in October. In North Carolina I am doing about 70 and happened to look down and say my speedometer needle was at 25...So I played with the gas, slowing down speeding up, and it kept going down.

Next morning, started up hit the highway, worked fine. About 20 mintues later I lost the speedometer again. Rest of the ride was long. I couldn't take it to the shop yet, had no money. So the past few months it would work about 5 mintues at the beginning of the day.

The other day I was pulling out of the drive way and it said I was doing 110!!!

Put it in the shop finally today. They said the instrument cluster needed to be replaced. I have no choice I had to get it done, and I dont want to mess with electronics on my own. Costing $480!!!

I had the car almsot 3 years, and besides from replacing the breaks this is the most major headache with it. Other than that this is the best car I have ever owned!

Rob

Click the image to open in full size.
__________________
Now Playing On:
Reply With Quote
  #4  
Old 08-05-2009, 10:17 PM
CF Beginner
 
Join Date: Jul 2009
Posts: 6
Default Solution for the speedometer failiure

I had the same problem in my 2003 Chevrolet impalaI found a website where I had my speedometer fixed for $95, They rebuild the entire cluster for $150. here is the address in case you wana check it out: http://www.speedometergaugerepair.com
Reply With Quote
  #5  
Old 08-06-2009, 01:30 PM
HotSauce6226's Avatar
Impala Super Moderator
 
Join Date: Jan 2008
Location: Shelbyville, KY
Posts: 813
HotSauce6226
Default

BCM could be a problem. I know someone else that can fix it at welll.
__________________
2003 Chevy Impala - Base 3400 - Few Mods
2004 Chevy Impala SS Indy Edition - 3800 Supercharged - Alot of Mods
Contact me for LED interior conversions
Reply With Quote
Old 08-06-2009, 01:30 PM
 
 
 
Reply

Tags
04, 2004, chevy, computer, dont, fast, haywire, ignition, impala, problem, problems, reads, reset, speedometer, work


Thread Tools

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Join Chevroletforum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 10:33 PM.

Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.

Emails Backup