Re: erratic speedo problems HELP
okay, two things...
1) at first glance, I thought the thread said "erotic speedo problems", and I was going to suggest you go see a urologist. but, never mind that.
2) you say "speedo" twice in the body of your message and once in the thread title, but then you're talking about RPMs. The RPM indicator is a tachometer, the vehicle speed indicator is a speedometer.
. a) if, in fact, it's the tach that is showing erratic behavior between 3,000 and 4,000 RPM, it may be the tachometer itself, or the wiring going to the tach -- unless you simultaneously hear the engine revving up and down in an erratic fashion...
2001 Ranger XLT 4.0L SOHC
Silver Frost w/ Dark Graphite interior
Summit 3" Body Lift
31x10.50 A/T tires
Explorer overhead console
Explorer auto-dim mirror
Aux1 & Aux2 inputs on factory AM/FM/CD/Cassette
Door-dinger silencer button
Seamless retractable roof and passenger-side ejection seat with steering wheel mounted controls and safety interlock