when i turn on my lights the dash lights up with turn singnals and bright beam indicator and the wait light for glow plug relay does anybody have any answers to my problem its a 1990 std cab long bed 2wd 6.2l diesel thank you

 

Bad ground.

 

ok bad ground but could you point to a source battery connection head lights tail light etc... thank you

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i belive it when the speedometer quits working the lights appear when i hit the dash and speedometer starts working again the lights go off no the fun begins in tearing the dash apart and finding what cause the short!!!