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        General >> Problems >> speedo not reading correctly
        
(Message started by: borneobob on Oct 20^th, 2004, 7:18pm)

Title: speedo not reading correctly
Post by borneobob on Oct 20^th, 2004, 7:18pm

i have just bought a 2.0 ultima 1995 from a friend and the speedo dosn't read correctly, it reads lower all the time . He said it as done this since he bought it 4 years ago but he put up with it . Anyone got any ideas?

Title: Re: speedo not reading correctly
Post by SaveTheNight on Oct 20^th, 2004, 9:11pm

I would imagine that someone has fitted a second hand speedo transducer in the gearbox ...and its the wrong one .. there are several and the cost may have been prohibitive therefore encouraging a previous owner to get whatever was available at the time ... cure ?? well .. the right one ......regards .....STN

Title: Re: speedo not reading correctly
Post by Danny_R on Oct 21^st, 2004, 10:22pm

Hi mate,

STN is right. The VSS or Vehicle Speed Sensor is a little device which sits at the very end of the gearbox. It has three wires going into a multiplug which send signals to the cars computer, instrument cluster etc.. of the vehicles speed.

Go down to your local Ford dealer and have them look up a vehicle speed sensor for the AUTO box. They have been the same design since the sierra and granada so you should'nt have any problems getting one. Mine cost me £58 from Ford.

HTH

Danny R

Title: Re: speedo not reading correctly
Post by jyrxx on Oct 25^th, 2004, 7:49am

How much less does it read?
My car does it also (about 6 km/h) but if I go to the diagnostic mode, hold the trip reset button, the digital one reads correctly, I think its suppose to do that.

Title: Re: speedo not reading correctly
Post by borneobob on Oct 28^th, 2004, 3:48pm

:) cheers guys , had a new vss fitted and speedo is spot on now . also smoother gear changes , gearbox behaving really well now. bought part from fords £60, and local garage fitted it for £25. the old sensor was almost impossible to turn when he took it off .

Title: Re: speedo not reading correctly
Post by Snoopy on Oct 28^th, 2004, 5:18pm

Great news Glad it was as easy as that...