Re: sticky EA speedo needle.
Under the car, you will see a red tube with three wires in it. There will be a plug about halfway down the box joining one half (from the speedo sender) to the other half (to the body loom). This can get wet, dirty, or just plain loose and cause symptoms like what you describe.
Proud TQE Operator and President of SEFAG - the Society for the Elimination of Ford Automatic Gearboxes
Pacemaker headers + 2.5" exhaust
EF Fairmont interior
Lowered King springs
5 speed manual
Newest mod: EF Ghia wiring loom and dash