C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

91 Tach Filter Identification

Thread Tools
 
Search this Thread
 
Old Nov 11, 2007 | 12:05 AM
  #1  
aklim's Avatar
aklim
Thread Starter
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,343
Likes: 3,252
From: Hartford WI
Default 91 Tach Filter Identification

I seem to have an issue with my tach. I am going to try the tach filer. Problem is I went with an HSR so I don't have the same setup. In any case, I found a couple of wires that go from my distributor. One is pink and the other is white. It goes to my remote coil. Well, that white from the coil leads to a rectangular box. One white going in, one white going out and a black. Sounds like a tach filter to me. However, it is rectangular and not round like others are saying. Is that it?
Reply
Old Nov 11, 2007 | 09:52 AM
  #2  
mseven's Avatar
mseven
Le Mans Master
 
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
Default

on my 90 it has only one white in and out and it is round.
It will be hard to see w/out taking off the dist. cap. Look on the top bolt of the trans case to the bloclk at approx. the 1 oclock position.
Reply
Old Nov 11, 2007 | 10:01 AM
  #3  
aklim's Avatar
aklim
Thread Starter
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,343
Likes: 3,252
From: Hartford WI
Default

According to the schematics there is a wire going in and one going out with a ground.
Reply
Old Nov 11, 2007 | 10:35 AM
  #4  
mseven's Avatar
mseven
Le Mans Master
 
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
Default

Originally Posted by aklim
According to the schematics there is a wire going in and one going out with a ground.
intersting, always thought the 90 and 91 to be the same. In my FSM they don't even show the tach filter as such, however the white tach wire at the dist. was directly wired to the filter, then to the main harness.
Reply
Old Nov 11, 2007 | 12:51 PM
  #5  
aklim's Avatar
aklim
Thread Starter
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,343
Likes: 3,252
From: Hartford WI
Default

Originally Posted by mseven
intersting, always thought the 90 and 91 to be the same. In my FSM they don't even show the tach filter as such, however the white tach wire at the dist. was directly wired to the filter, then to the main harness.
My 91 FSM shows it. Section 8A-20-5
Reply

Get notified of new replies

To 91 Tach Filter Identification





All times are GMT -4. The time now is 09:03 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE