Interesting Tach Issue
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Junior User
Joined: Sep 2004
Posts: 61
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From: No fixed address
Interesting Tach Issue
Interesting thing happened to me the other day in my 2006 PS.
I was driving home form work and as the tranny was about to shift into high gear at 55mph which would normally have me at approx 1500rpm, the tac dropped way down to 700ish. At first I thought I found a miraculous [higher] gear that I hand't used before, but when I came to a stop the tac was showing idel at approx 200rpm, when it normally is 700.
It was obviously just a tac issue as the engine was sounding and performing as normal. Next straight stretch I hit I put it in neutral and turned off and on which solved the problem.
Anyone have this happen to them?
I was driving home form work and as the tranny was about to shift into high gear at 55mph which would normally have me at approx 1500rpm, the tac dropped way down to 700ish. At first I thought I found a miraculous [higher] gear that I hand't used before, but when I came to a stop the tac was showing idel at approx 200rpm, when it normally is 700.
It was obviously just a tac issue as the engine was sounding and performing as normal. Next straight stretch I hit I put it in neutral and turned off and on which solved the problem.
Anyone have this happen to them?
Elder User
Joined: Jul 2004
Posts: 811
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Isn't that what they said just before one of the space shuttles went poof ? I have a similar problem with the tach bouncing to 0 and then the ABS light comes on. It resets by the time Ford looks at it and they won't do anything unless they see the problem. I'm not impressed with their response, as several people have told me it's the sensor on the rear axle. I'm debating now if I'm going to take an extended warranty. What good is it if they won't address the problems?
Junior User
Joined: Feb 2006
Posts: 50
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im having the same thing my tack will some times be thousand rpms to high or to low just varries also when my truck sits for a couple days or over night in the cold "-20 through -40" the speedo will freeze at 0 so i took it in and they are goin to replace the hole cluster but it just happends that the cluster is on back order till the 9th of feb so yea good luck with your guys
Post Fiend
Joined: Sep 2006
Posts: 6,634
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From: bricktown NJ
I had same problem with speedo tach was ok. truck sat a few days temp was about 20 in morning noticed while driving 2500 rpm highway, speedo was not going past 15. truck was running about 20 min so it was warm.I hit the brake than gas went back to normal.seams ok now.only did it one time in year 1 1/2.
06 6.0
06 6.0
Senior User
Joined: Nov 2005
Posts: 382
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From: Big Red country
I haven't seen the TSB, but mine did it first with both gauges erratic then just the speedo. Took it in the second time with the speedo off 0 when stopped. They have to replace the cluster. Yes, the things are back ordered till later in Feb. They told me there wasn't a TSB out, whatever. They are supposed to keep the truck but they felt they couldn't, do to it being that long for parts. This means that by the time I get the new cluster it will be reading the mileage from when I took it in.
