INSTRUMENT CLUSTER pcm
Hi, 2004 sport trac(the Issue) Instrument cluster works intermittently. If I reset the pcm it works well for a short while but then all goes haywire again. Speedometer sticks or doesn't work and the odometer only has green lines, the overdrive light wont change when pushed, check engine light goes on. This all starts when I turn the key on. sometimes if I drive for a while it corrects its self. Fuses look good. I have had my speedometer tested and it works fine. At that time i was told either a loose connection or the pcm needs replaced.also where would the ground wire from pcm on my frame be located? Any ideas. and once in a while I hear a strange noise from the junction box where the fuses and relays are.Thank You I really appreciate the help.