Erratic Tach Display

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Sep 14, 2009 | 11:31 AM

jimg's'93

Thread Starter

Drifting

Joined: Nov 2005

Posts: 1,324

Likes: 5

From: Charlotte NC

Erratic Tach Display

I've got a new issue for me that is not affecting performance at all, but is for obvious reasons annoying as heck. Once in a while, my display goes on the fritz and sometimes I can give a good rap on the dash to correct it. This leads me to believe there is a faulty connection in the display itself, but before I tear into it and search, I thought maybe someone else out there has had this symptom and found a resolution. This is a '93 coupe.

Thanks All!

Sep 14, 2009 | 01:47 PM

jispr

Instructor

Joined: Sep 2004

Posts: 208

Likes: 1

From: Lawrenceville GA

I had same problem. Sent dash to ???? and all has been well for 2 years.
This guys name is posted on the forum maybe Gene Taber? Someone will know. Sorry best I can do.

Jim

Sep 14, 2009 | 02:56 PM

jimg's'93

Thread Starter

Drifting

Joined: Nov 2005

Posts: 1,324

Likes: 5

From: Charlotte NC

Quote:

Originally Posted by jispr

I had same problem. Sent dash to ???? and all has been well for 2 years.
This guys name is posted on the forum maybe Gene Taber? Someone will know. Sorry best I can do.

Jim

I appreciate the response. I think I may pull the cluster tonight and see if there are any contacts/solders etc. that may have come apart or need obvious cleaning. It look s as though the cluster removal is pretty straightforward.

Do you recall if it's sealed or can it be opened to gain access?

Thanks - Jim

Sep 15, 2009 | 12:00 PM

josephf31

Pro

Joined: Mar 2008

Posts: 579

Likes: 2

From: High Bridge New Jersey

Do not use taber

Quote:

Originally Posted by jispr

I had same problem. Sent dash to ???? and all has been well for 2 years.
This guys name is posted on the forum maybe Gene Taber? Someone will know. Sorry best I can do.

Jim

There are MANY bad reports about these guys, find someone else if you need to rebuild your cluster. I don't have the link handy but it was another 'Vette forum and there were dozens of posts by people who
had nothing but trouble from Taber.

Apparently they used to OK a few years back but not anymore.

Sep 17, 2009 | 03:30 PM

elkprairie

Advanced

Joined: Dec 2008

Posts: 82

Likes: 2

I had a very erratic tach reading on my 84. I disconnected the wire on the distributor, reattached it and the reading was stable.

Feb 17, 2013 | 04:09 PM

corvetero

Pro

Joined: Dec 2011

Posts: 626

Likes: 15

From: Austin, TX

Refloating this thread since I'm having same issue on my 92.

any idea??

Feb 18, 2013 | 02:11 PM

josephf31

Pro

Joined: Mar 2008

Posts: 579

Likes: 2

From: High Bridge New Jersey

Quote:

Originally Posted by corvetero

Refloating this thread since I'm having same issue on my 92.

any idea??

I replaced my '91 with a used one from either eBay or vette2vette (can't remember which one) and issued resolved. Didn't use the impossible to find resistor/capacitor either and it's been working perfectly.

Feb 18, 2013 | 04:13 PM

devilfish

Melting Slicks

Joined: Oct 2000

Posts: 3,010

Likes: 1

From: Sweden/Stockholm

Hade the same problem on my 91. I hade a loose ground wire behind the dis.

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Feb 19, 2013 | 01:32 PM

corvetero

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Joined: Dec 2011

Posts: 626

Likes: 15

From: Austin, TX

Quote:

Originally Posted by devilfish

Hade the same problem on my 91. I hade a loose ground wire behind the dis.

Where exactly??

Feb 22, 2013 | 11:29 AM

#10

devilfish

Melting Slicks

Joined: Oct 2000

Posts: 3,010

Likes: 1

From: Sweden/Stockholm

Sorry for the late reply. It whas behind the distrubitor, not inside the cluster. A gounde wire whas loose, when I fix it my tach whas fine.

Feb 24, 2013 | 03:04 PM

#11

corvetero

Pro

Joined: Dec 2011

Posts: 626

Likes: 15

From: Austin, TX

Quote:

Originally Posted by devilfish

Sorry for the late reply. It whas behind the distrubitor, not inside the cluster. A gounde wire whas loose, when I fix it my tach whas fine.

Thanks for the reply. I guess my car has not the same wire since mine is a 92 with optispark and yours is a 91 with a different distribuitor. Nevertheless i'll appreaciate if you post a picture of such wire.

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