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adrose211 07-28-2020 11:34 AM

speedo and brake pedal
So my 2004 F-250 speedo seems to be acting up...Whenever I'm stopped at a light, if I have the turn signal on, the speedo will jump along with the signal. Or, if I have my foot on the brake pedal, it will also cause the speedo needle to raise - take my foot off and the needle goes back down. Anyone have any insight?


dustybumpers 07-28-2020 03:12 PM

Sounds like a grounding problem somewhere in the dash

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adrose211 07-28-2020 06:03 PM

That sounds like loads of fun to find...

Thanks for the feedback!

dustybumpers 07-28-2020 06:32 PM

First, look at the back of the fuse panel for water intrusion. The windshields in these are known to leak. The body modual, or gem is right there too. There are about 4 grounds in that area.

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