Question about 2002 Ford SVT Focus
My daughter's 2002 Ford Focus has developed a problem where the speedometer intermittently jumps all over the place - 0-90 and back, no matter what speed she is driving. The radio volume also intermittently jumps. Weather, speed, and cold start don't seem to make a difference in these incidents which occur sporadically but make it difficult for her to drive, especially commuting to work in 35-mph zones.
These problems developed AFTER she reported a problem with her blower which now only works on HIGH speed. (I suspect that the blower is a faulty relay-COULD THIS ALSO BE CAUSING THE OTHER PROBLEMS???).
She's a starving student and I can't help her out much either. Can anyone suggest what could be causing the speedometer and radio surges and can this be fixed at a reasonable cost? Thanks in advance for any suggestions!
Ford Focus's have a common problem with the instrument panel in the dashboard. My Speedo intermittently swicthes itself off all together occasionally and then comes back all on its own. I believe its related to the circuit board on the back of the instrument panel corroding over time. As a potential workaround you can take the panel out of the dash and spray the back with WD40, it might not last forever though.
Posted on Nov 17, 2008
The blower problem is caused by a blower motor resister pack. That resister pack is what causes the blower motor to have more than one speed. The other problems could be related to circuits that also connect to the resister pack or use a common ground but I'm not totally convinced of that. Remember, the speedometer is electricly driven (there is no cable from the transmission to the speedometer on this car). It could also be a faulty ground going to the radio/speedometer. Do the problems seem to happen when you hit a bump?
Much good luck!
Posted on Nov 12, 2008
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How to trouble shoot
-----------speedometer not working? http://technoanswers.blogspot.com/2012/01/1996-fiat-bravo-speedometer-not-working.html
---------Speedometer runs backward?
Warning lights on and speedometer died? http://howtobyme.blogspot.com/2011/08/warning-lights-on-and-speedometer-died.html
--------Odometer works properly but speedometer works intermittently? http://technoanswers.blogspot.com/2012/01/odometer-works-properly-but-speedometer.html
----------speedometer is jumping? http://schematicsdiagram.blogspot.com/2012/01/isuzu-rodeo-speedometer-is-jumping.html
-----------This will help.Thanks.
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