This morning while driving home from work , I noticed my tachometer bouncing around , idle was fine , driving fine , revs normally , but around 2-3k rpm the tach was bouncing back and forth , 97 fzj80 181k miles , any advice helps !
Broken tachometer 97 fzj80 (1 Viewer)
- Thread starter William839
- Start date
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- Thread starter
- #2
Anyone?
There's been a few reports of this happening randomly, then going back to normal on it's own.
What year/model 80 do you drive?
You said the Tach was (past tense) bouncing around, did this just happen once on a cold engine when you first started out ?? What was the termperature outside when this happened, how often does it happen, ---??
Try some searches in the 80 forum (magnifying glass icon top right corner of any page) using some or all of these terms: bouncing jumpy tach tachometer
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Here's one:
forum.ih8mud.com
What year/model 80 do you drive?
You said the Tach was (past tense) bouncing around, did this just happen once on a cold engine when you first started out ?? What was the termperature outside when this happened, how often does it happen, ---??
Try some searches in the 80 forum (magnifying glass icon top right corner of any page) using some or all of these terms: bouncing jumpy tach tachometer
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Here's one:
Jumpy tachometer, any fixes
Recently, I have notced that my tachometer jumps around erratically. Sometimes at idle it sits really low, around 400 rpm when the engine speed apears to be normal. Other times when travling steady or accelerating, the tach will bounce around by a couple of hundred RPM. Anyone have this same...
forum.ih8mud.com
Last edited:
- Thread starter
- #4
Tried searching but maybe didn’t search hard enough
Engine warm
Outside temp 40 degrees F on the freeway at 60-65
Engine warm
Outside temp 40 degrees F on the freeway at 60-65
I think the technical term is "Wacko Taco"
Mine does this some times then it will stop for months. Most recently I gave the dash a good thwump when my D light went out for the 2nd time. D light came back and the tachometer has been behaving since them.
That's the long way of asking "did you try hitting it till it works?"
Mine does this some times then it will stop for months. Most recently I gave the dash a good thwump when my D light went out for the 2nd time. D light came back and the tachometer has been behaving since them.
That's the long way of asking "did you try hitting it till it works?"
