speedo jacked up

HMUSN · October 28th, 2008, 09:11 PM

01 3.6 5 speed.

4:10's and a speedcal installed.

recently had a spec stage 2 dropped in. by recent I mean 2 days ago.

Can't get the car past second gear because the speedo is hitting 120 mph causing the rev limiter to kick in.
Revs normally as well. is normal at idle.

this used to be my v6 mustang but it's in Wisconsin so I can't diagnose it properly.

I say VSS but my cousin ( new owner) says the mechanic at ford checked it and it's good.

The mechanic blames it on the speedcal but I call

on that and think it's the vss because even without the speedcal it wouldn't be off by that much.
I think something happened to the vss when they did the clutch and don't want to own up and replace the part.

what do you think?

GreenFaleen · October 28th, 2008, 09:17 PM

speed sensor in the tranny id put money on it

SWEET2KSTANG · October 28th, 2008, 09:18 PM

i would bypass speedcal to see if any difference.

White99stang · October 28th, 2008, 09:18 PM

actually think if something is shorted in the speed cal box that it can cause that. The easiest way i would think is to take off the speed cal and see if it still does it

HMUSN · October 28th, 2008, 09:19 PM

^ I thought of that as well.

WLJohnson05 · October 28th, 2008, 09:19 PM

Originally Posted by White99stang

actually think if something is shorted in the speed cal box that it can cause that. The easiest way i would think is to take off the speed cal and see if it still does it

+1

HMUSN · October 28th, 2008, 09:25 PM

He is reading this right now.

G.T. Rags · October 28th, 2008, 09:31 PM

disconnect the speedo sensor plug from the transmission..... if the car goes then it has something to do with the speed sensor

October 28th, 2008, 09:11 PM	#1
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	speedo jacked up 01 3.6 5 speed. 4:10's and a speedcal installed. recently had a spec stage 2 dropped in. by recent I mean 2 days ago. Can't get the car past second gear because the speedo is hitting 120 mph causing the rev limiter to kick in. Revs normally as well. is normal at idle. this used to be my v6 mustang but it's in Wisconsin so I can't diagnose it properly. I say VSS but my cousin ( new owner) says the mechanic at ford checked it and it's good. The mechanic blames it on the speedcal but I call on that and think it's the vss because even without the speedcal it wouldn't be off by that much. I think something happened to the vss when they did the clutch and don't want to own up and replace the part. what do you think? __________________ Last edited by HMUSN; October 28th, 2008 at 09:14 PM.

October 28th, 2008, 09:17 PM	#2
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	speed sensor in the tranny id put money on it __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

October 28th, 2008, 09:18 PM	#3
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,542 iTrader: 8 reviews	i would bypass speedcal to see if any difference. __________________ project warhorse under construction wagon burner under construction as well (04 lightning) being built by MP2 Performance

October 28th, 2008, 09:18 PM	#4
White99stang MM's nicest mod, :) Join Date: Aug 2005 Location: Apex, NC Posts: 3,771 iTrader: 0 reviews	actually think if something is shorted in the speed cal box that it can cause that. The easiest way i would think is to take off the speed cal and see if it still does it __________________ 06 Dodge MegaCab Diesel 455rwhp/815rwtq REAL TRUCKS DON'T USE SPARK PLUGS

October 28th, 2008, 09:19 PM	#5
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	^ I thought of that as well. __________________

October 28th, 2008, 09:25 PM	#7
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	He is reading this right now. __________________

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