Speedometer off by 10mph

[Redrocket0788]

Hey guys I bought a 1g gst I noticed when I'n going 25 that I'm going 35 idk what to do

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[Redrocket0788]

Any help will be apprixiated

 

[Bud92gsx]

You can get your spedometer reset..Take it to a shop and tell them after the wheels you nhave on your car are making your spedo off..

 

[LiquidX]

You could pop the needle off and put it on to the corresponding speed you are traveling. Will need to be done while driving so an open empty parking lot would be best.

 

[94_TSi]

You could pop the needle off and put it on to the corresponding speed you are traveling. Will need to be done while driving so an open empty parking lot would be best.

Yep pull the cluster out and adjust the needle by hand until you get it right.

 

[Redrocket0788]

Ok so pretty much I can drive with a gps hit cruise control and adjust it too what the gps says

 

[Aceman]

Just like that actually. It took me a couple trys to get it right, but I just popped it off and set it and ive checked it with multiple gps speedo's and its like within .5 mph every time I check.

 

[TurboATM]

i re-did my guages, and i ended up putting the temp needle in the wrong spot, it reads a little hot now...its damn annoying. That is a little more involved to get that right!

 

[Redrocket0788]

well ill get out and fix it, ill let you guys know what the outcome is. thanks

 

[dsm03]

I was driving on the highway yesterday, doing about 55mph, I was approaching construction zone and they had a digital speedometer reader up. I was actually going slower by like 3mph, than what my gauge was reading. Anyways, I like it this way because I am always doing below the speed limit according to the radar

 

[dpun3]

My 1g had the same problem but never felt it was worth fixing.

 

[tenn-gsx]

The faster you go the further off it will be. Or if you move the needleWTF Then your speedo will be off both ways. The only speed that will be correct will be the speed you set it at.

 

[yukiz]

remove the cluster. then remove the clear case, remove the needle. put back the speedometer without the clear case. get a gps and cruise about 60. and match your speedometer with gps. or if you have dsmlink, you can use that as reference.

 

[jtmcinder]

The faster you go the further off it will be. Or if you move the needleWTF Then your speedo will be off both ways. The only speed that will be correct will be the speed you set it at.

Yea! Someone is paying attention.

I'm also somewhat disappointed that no-one has yet asked the thread-starter what size tires he has (although Bud came close).

 

[dsm03]

OP, What size wheels and tires are you running?

 

[Redrocket0788]

205/40/zr17

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[jtmcinder]

DSM speedometers already run a tad high on stock-sized tires. And then you went and put some itsy-bitsy tires on your car.

shut down thread, pls

 

[Redrocket0788]

This I's how I bought it I just didn't know what was up

 

[dsm1990]

does the needle bounce a lot at low speeds? if so i would check your speed-o cable or possibly gear. otherwise i would think you could get another cluster from a junk yard easy enough.

 

[Frickadella]

Assuming 205/55/16 was stock, the 205/40/17 is about 1.4" less in dia. and changes speedo by 2 mph at that speed.

Check your speed by using mile markers or have a friend drive next to you at a constant speed.

 

[Redrocket0788]

Ok I'll do that but no matter what speed I go it's off around 10 mph