Weird tachometer action - Ford Mustang Forum
 
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post #1 of 7 (permalink) Old 02-12-2014 Thread Starter
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Weird tachometer action

Started my car for the first time in a month yesterday and immediately heard a strange rattling noise coming from the dash. Looked down and the needle on my tachometer was stuck on ZERO and wildly fluctuating up and down about 1/16". Then suddenly it became unstuck and resumed the normal cold fast idle reading. Has not happened since, so probably just some electronic gremlin that came and went.

Just thought I would throw it out here and see if anyone else has had this happen.

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post #2 of 7 (permalink) Old 02-12-2014
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Originally Posted by stevegt2012 View Post
Started my car for the first time in a month yesterday and immediately heard a strange rattling noise coming from the dash. Looked down and the needle on my tachometer was stuck on ZERO and wildly fluctuating up and down about 1/16". Then suddenly it became unstuck and resumed the normal cold fast idle reading. Has not happened since, so probably just some electronic gremlin that came and went.

Just thought I would throw it out here and see if anyone else has had this happen.
I think it has some thing to do with the needles finding zero. My car does that every time the battery is disconnected or the ecu is flashed. Did you disconnect the battery when storing it?


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post #3 of 7 (permalink) Old 02-12-2014
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Mine does this every time I shut the car off. It goes below the zeros, bounces and goes back to zero. Never saw that happen with the engine running though.

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post #4 of 7 (permalink) Old 02-12-2014 Thread Starter
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Mine does this every time I shut the car off. It goes below the zeros, bounces and goes back to zero. Never saw that happen with the engine running though.
That's normal. This was a very fast quivering sort of action at zero that lasted a few seconds after the engine was started.

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I think it has some thing to do with the needles finding zero. My car does that every time the battery is disconnected or the ecu is flashed. Did you disconnect the battery when storing it?
Battery was not disconnected. Your calibration theory is interesting.
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post #5 of 7 (permalink) Old 02-12-2014
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Originally Posted by stevegt2012 View Post
Started my car for the first time in a month yesterday and immediately heard a strange rattling noise coming from the dash. Looked down and the needle on my tachometer was stuck on ZERO and wildly fluctuating up and down about 1/16". Then suddenly it became unstuck and resumed the normal cold fast idle reading. Has not happened since, so probably just some electronic gremlin that came and went.

Just thought I would throw it out here and see if anyone else has had this happen.
Hey stevegt2012,

I think you should have it checked out by your dealer and speaking to your service manager about this concern. He is in the best position to look into this for you and can check into any warranty, assistance, recalls, or customer satisfaction programs that may apply to your vehicle.

Also, remember repairs done at a Ford Dealer come with a 24 months/unlimited miles warranty. You can schedule an appointment online here.

Deysha
post #6 of 7 (permalink) Old 02-12-2014 Thread Starter
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Hey stevegt2012,

I think you should have it checked out by your dealer and speaking to your service manager about this concern. He is in the best position to look into this for you and can check into any warranty, assistance, recalls, or customer satisfaction programs that may apply to your vehicle.

Also, remember repairs done at a Ford Dealer come with a 24 months/unlimited miles warranty. You can schedule an appointment online here.

Deysha
Thanks Deysha, I will keep that in mind if it happens again. Right now I'm thinking it was just a blip on the radar.

Regarding the comment on the 24 months warranty. I have a 7 year (extended) bumper to bumper warranty, so wouldn't a repeat occurrence of a previous repair be covered under that?
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post #7 of 7 (permalink) Old 02-13-2014
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Thanks Deysha, I will keep that in mind if it happens again. Right now I'm thinking it was just a blip on the radar.

Regarding the comment on the 24 months warranty. I have a 7 year (extended) bumper to bumper warranty, so wouldn't a repeat occurrence of a previous repair be covered under that?
Youíre very welcome, stevegt2012. It would be covered by whichever one is longer. If the repair was originally covered by your Ford ESP, it may be covered again under it if itís still active; or the parts and service warranty if itís still within 2 years. Your dealer will be able to provide more specific info about it.

Deysha
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