Speedo only works sometimes. Replace it? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

neverrain · 07-08-2008, 06:08 PM

Hey all,

I have been "accepting" of a problem with my speedometer that doesn't really bug me, but I'm to the point where I want to correct it.

My speedometer only works about 50% of the time. Sometimes it works perfectly, sometimes it sits at zero, sometimes it just does whatever it wants and bounces all over the gauge.

Is this something that can be fixed or would it be easier just to replace the cluster? I plan to swap out my dash in the near future (cracked dash ftw) and if I need to simply replace it I would like to do it then.

Anyone else have this issue before?

*DALAZ_68* · 07-08-2008, 06:11 PM

Quote:

Originally Posted by neverrain

Hey all,

I have been "accepting" of a problem with my speedometer that doesn't really bug me, but I'm to the point where I want to correct it.

My speedometer only works about 50% of the time. Sometimes it works perfectly, sometimes it sits at zero, sometimes it just does whatever it wants and bounces all over the gauge.

Is this something that can be fixed or would it be easier just to replace the cluster? I plan to swap out my dash in the near future (cracked dash ftw) and if I need to simply replace it I would like to do it then.

Anyone else have this issue before?

i dunno about cluster, but u can change the gauge itself and its not that hard...

***dorkidori_s13*** · 07-08-2008, 06:11 PM

sounds like u have a short or a bad ground...pull the cluster and check the sub harness between the back of the cluster and the dash harness (it unplugs in 2 spots under the dash behind the cluster)

the dash wires get old and very brittle and CAN crack and cause cluster problems

or the speedo itself could just be going bad...but theyre cheap enough to find around (like 20-30 bux for the unit...if that)

neverrain · 07-08-2008, 06:36 PM

Yea i was actually wondering if it was wire related or not, but ive been lazy approaching it. Just figured I should probably look into it when I pull my dash. Thanks for the info.

kevinphan · 07-08-2008, 08:15 PM

If you want I have a mint cluster for sale.

neverrain · 07-08-2008, 08:23 PM

How much? shipped to 91402?

Also, another thing I didn't think about at the time was that my odometer and trip odometer don't always work (which isn't a bad thing). Although this likely doesn't change what the problems could be.

kevinphan · 07-08-2008, 09:15 PM

44$ shipped?

Ready to ship whenever.

krazydriver · 07-08-2008, 09:17 PM

Quote:

Originally Posted by neverrain

How much? shipped to 91402?

Also, another thing I didn't think about at the time was that my odometer and trip odometer don't always work (which isn't a bad thing). Although this likely doesn't change what the problems could be.

Definitely a grounding issue if it's affecting the whole cluster like that. You really just need to check it. It'll be a simple fix.

reccakun08 · 07-08-2008, 10:44 PM

kevinphan has a sohc gauge cluster.
What engine do you have?

kevinphan · 07-09-2008, 02:00 PM

Yeah that cluster came from a SOHC

Jordn · 07-09-2008, 02:23 PM

Is it *just* the speedo? Or rev counter too?

Check the speed sensor on the gearbox. If its not reading right your speedo won't work and neither will your odo.

Check the wires coming off the sensor to make sure they are't fubared. Pull the sensor out of the box and check it visually too. Some of the teeth can snap as the cog is plastic and give hit and miss readings.

fromxtor · 07-10-2008, 07:44 PM

^^ Speaking of that, when I bought my hatch the speedo would be intermittent like that. Well I decided to pull the speed sensor out before I sodl the tranny a few weeks ago, and the clip that help the gear onto the sensor fell off due to being bent.

07-08-2008, 06:08 PM	#1
neverrain Zilvia Addict Join Date: Jun 2008 Location: SoCal 818 Age: 44 Posts: 901 Trader Rating: (12) Feedback Score: 12 reviews	Speedo only works sometimes. Replace it? Hey all, I have been "accepting" of a problem with my speedometer that doesn't really bug me, but I'm to the point where I want to correct it. My speedometer only works about 50% of the time. Sometimes it works perfectly, sometimes it sits at zero, sometimes it just does whatever it wants and bounces all over the gauge. Is this something that can be fixed or would it be easier just to replace the cluster? I plan to swap out my dash in the near future (cracked dash ftw) and if I need to simply replace it I would like to do it then. Anyone else have this issue before?

07-08-2008, 06:11 PM	#3
*dorkidori_s13* ITS LISA'S FAULT!!! Join Date: Jun 2003 Location: Las Vegas Age: 43 Posts: 7,496 Trader Rating: (41) Feedback Score: 41 reviews	sounds like u have a short or a bad ground...pull the cluster and check the sub harness between the back of the cluster and the dash harness (it unplugs in 2 spots under the dash behind the cluster) the dash wires get old and very brittle and CAN crack and cause cluster problems or the speedo itself could just be going bad...but theyre cheap enough to find around (like 20-30 bux for the unit...if that) __________________ Check out my IG for what I'm up to! DORKIDORI INSTAGRAM!!!

07-10-2008, 07:44 PM	#12
fromxtor Post Whore! Join Date: Aug 2005 Location: NC Age: 44 Posts: 3,012 Trader Rating: (23) Feedback Score: 23 reviews	^^ Speaking of that, when I bought my hatch the speedo would be intermittent like that. Well I decided to pull the speed sensor out before I sodl the tranny a few weeks ago, and the clip that help the gear onto the sensor fell off due to being bent. __________________ Seller feedback>>http://www.zilvia.net/f/showthread.p...light=fromxtor

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07-08-2008, 06:36 PM	#4
neverrain Zilvia Addict Join Date: Jun 2008 Location: SoCal 818 Age: 44 Posts: 901 Trader Rating: (12) Feedback Score: 12 reviews	Yea i was actually wondering if it was wire related or not, but ive been lazy approaching it. Just figured I should probably look into it when I pull my dash. Thanks for the info.

07-08-2008, 08:15 PM	#5
kevinphan Zilvia Member Join Date: May 2008 Location: Massachusetts Age: 36 Posts: 180 Trader Rating: (1) Feedback Score: 1 reviews	If you want I have a mint cluster for sale.

07-08-2008, 08:23 PM	#6
neverrain Zilvia Addict Join Date: Jun 2008 Location: SoCal 818 Age: 44 Posts: 901 Trader Rating: (12) Feedback Score: 12 reviews	How much? shipped to 91402? Also, another thing I didn't think about at the time was that my odometer and trip odometer don't always work (which isn't a bad thing). Although this likely doesn't change what the problems could be.

07-08-2008, 09:15 PM	#7
kevinphan Zilvia Member Join Date: May 2008 Location: Massachusetts Age: 36 Posts: 180 Trader Rating: (1) Feedback Score: 1 reviews	44$ shipped? Ready to ship whenever.

07-08-2008, 10:44 PM	#9
reccakun08 Zilvia FREAK! Join Date: Jun 2003 Location: Rockville, Maryland Age: 40 Posts: 1,090 Trader Rating: (5) Feedback Score: 5 reviews	kevinphan has a sohc gauge cluster. What engine do you have?

07-09-2008, 02:00 PM	#10
kevinphan Zilvia Member Join Date: May 2008 Location: Massachusetts Age: 36 Posts: 180 Trader Rating: (1) Feedback Score: 1 reviews	Yeah that cluster came from a SOHC

07-09-2008, 02:23 PM	#11
Jordn Zilvia Junkie Join Date: Jun 2008 Location: Peterborough, England, UK, Across the pond. Age: 42 Posts: 304 Trader Rating: (1) Feedback Score: 1 reviews	Is it just the speedo? Or rev counter too? Check the speed sensor on the gearbox. If its not reading right your speedo won't work and neither will your odo. Check the wires coming off the sensor to make sure they are't fubared. Pull the sensor out of the box and check it visually too. Some of the teeth can snap as the cog is plastic and give hit and miss readings.