Possible Tachometer Fix

[fastblackmerc]

I'm investigating a possible DIY fix for the intermittently working tach.

I need one or two instrument clusters that exhibit the intermittently working tach.

In return you will get back your instrument cluster hopefully with a working tach.

Thanks Guys!

[MercRauder03]

Mine has this Glitch i've been searching for a Fix did anyone send you a unit to try it on. I'd be more than happy to send you mine

[boatmangc]

I have one too Jim
PM if you want to give it a try

[Vortech347]

Get anywhere on this? My tach just went a little bonkers at idle today.

[cunaginc]

Mine had that issue when I bought it and we just fixed a connection right up against the tach.

[MENINBLK]

It is a loose connection that is causing the problem.
Mine has been doing it for years...
I need a little time to fix it.

[whitey]

Please post more info. Ive taken the cluster out only to find/see nothing out of the norm.

[Zack]

I beat on the dash, easy fix

[maineiac]

I just beat on the car in general

[screamn]

I beat on the dash, easy fix

+1 ^^^ on this!!

Persuasion always works and relieves stress.....

[Charlie5liter]

Was anyone able to zero in on the solution to this? I would be interested in a diy write-up, my newly acquired manual swap marauder is exhibiting the intermittent tach issues and I want to ensure I don't miss shifts. I have some decent soldering skills I can put to work

[Peace2Peep]

+1 on this!

[justbob]

Was anyone able to zero in on the solution to this? I would be interested in a diy write-up, my newly acquired manual swap marauder is exhibiting the intermittent tach issues and I want to ensure I don't miss shifts. I have some decent soldering skills I can put to work

Meh. That’s what my ears are for. [emoji1303]

Another Illinois and manual swap guy! I’m in Wheaton.


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[Mr. Man]

You need to drive a GT 350 Bob it will blow your mind.

[justbob]

You need to drive a GT 350 Bob it will blow your mind.

I’m sure it would!


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[decipha]

This is the first Ive ever heard of faulty tachs on a marauder. Interesting enough about 3 months I started my car and the tach took a second before it came alive. I chalked it up to a glitch in the matrix but perhaps my jewel is showing early signs.

[BLACKMARAUDER04]

Mine will work intermittently. If I accelerate it works, then goes to zero.


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[Zee1nonly]

My tach will sometimes stay at zero and sometimes will lag way behind actual RPM.

When I lightly tap the face of the cluster, the needle returns to normal operation.

More of an annoyance for me however, it’s enough to make my eye twitch out of frustration.


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[BLACKMARAUDER04]

Bump! Any update? I'll be pulling my speedometer this week for light bulb replacement.
I'm tired of the tach working wrong.

[fastblackmerc]

I've fixed 2 tachs, So far the reports have been good. Will update once I get more results.

[Zee1nonly]

I've fixed 2 tachs, So far the reports have been good. Will update once I get more results.

Are you providing this service? If so how much? Mine is getting worse the more I drive it.


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[fastblackmerc]

Are you providing this service? If so how much? Mine is getting worse the more I drive it.


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I've got another one on the way. If it works, yes, I'll provide the service.

[8UWITH6]

This thread was started 9 years ago. Come on FBM hurry up already! :)

[fastblackmerc]

This thread was started 9 years ago. Come on FBM hurry up already! :)

Had to perfect the fix, then make sure it worked.

[J D]

Bumping to check to see if FBM now fixes these.

[Zee1nonly]

Very interested! If I go over 4500 rpm it drops all the way to the right


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[fastblackmerc]

Yes, I can fix the tach. Will need the entire instrument cluster.

PM me for details.