Speedometer lagging

[tanpathy1995]

My speedometer lags at certain speeds, it lags between 24-27mph, 30-36mph, and 63-70mph. What is the cause of this problem, and how can i fix it?

Edited January 28, 2015 by tanpathy1995

[SpecialWarr]

I've been told that there is a voltage regulator in the back of the dash that tends to go funny after some years of service, but I would think that taking a look in the "Garage" section on here should get you to a downloadable Service Manual. You may find the answer in there.

[bcti]

I've had two Nissan pickups do that to me. The cause for both of them was the speedo needle had sagged and was dragging on the gauge face. When I tried to straighten them, they both broke. I fabricated new ones by trimming a piece of white plastic to the same(ish) shape and hot glueing it to the part of the needle that was left over.

[Slartibartfast]

^ That makes a lot of sense. You might try heating the needle before bending it to see if it'll go without snapping.

 

Or find something amusing to use as a needle. Miniature lightsaber?

Edited February 7, 2015 by Slartibartfast

[bcti]

^ That makes a lot of sense. You might try heating the needle before bending it to see if it'll go without snapping.

 

Or find something amusing to use as a needle. Miniature lightsaber?

 

I've some light sabers left over from Star Wars action figures that I long ago lost. If I EVER need to replace an indicator needle, light saber it shall be! Just so you know, I'm going to claim your idea as mine.

[Slartibartfast]

I am entirely alright with that so long as you post pictures.

[Bubbley11]

You better stick a small led bar to it so it looks lit up.

[Terranovation]

I fixed mine by heating it up in a mug of hot (not boiling) water. Hold the needle at one end and stick the other end in the hot water for a couple of minutes. Then take the needle end and stick between a couple of popsicle sticks, wrap tight around that with lacky bands. Doesn't have to be exactly this, you could also put the needle end between a couple of big heavy books, anything that is heavy and flat basically. I left mine for a couple of days and then I found it was finally straight. If not, repeat the process. Heat it up in hot water, then put between something heavy to straighten it out. Patience is the key.