speedometer problem
#1
Coolant everywhere!
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Join Date: Sep 2003
Location: bay area, ca
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speedometer problem
i bought my 87 gxl a few months ago and 10 days after i got it, the tranny blew up cuz all the fluid leaked out the screwed up front seal(prolly why the guy wanted to sell it). so i went down the junkyard and found a 89 GTUs stripped to the bone :'-(, except the tranny. so i bought it and swapped it with my blown one. as per my friends instructions i swapped the speedo gears as well. the other day i was following my friend and he infromed me that we were doing 75 mph but my speedometer said i was doing 80. how do i fix this problem, do i need a non-GTUs s5 speedo or is there something i need to do in the dash/cpu/whatever in my car. thanks for any help.
#7
Former Moderator. RIP Icemark.
up to 5 MPH more than actual speed is within stock variences.
If it is a real concern you need to have the speedo checked at a speedo shop.
I would not be taking a "friends" report of speed as being correct. If his is off 2.5 miles off and yours is also off 2.5... there is your 5 MPH.
If it is a real concern you need to have the speedo checked at a speedo shop.
I would not be taking a "friends" report of speed as being correct. If his is off 2.5 miles off and yours is also off 2.5... there is your 5 MPH.
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