Tach works backwards

[Glorywagon]

New to this Forum ok 1995 model the tack when you step on the throttle the tack runs backwards. Could this possibly be a ground problem.

also I don't have this problem yet. But on me 88 TC I replaced the heater core. On a MarkVIII do yo have to remove the dash to replace it also. Thank Danny

[cason1]

I have no idea about the tach but I'm about 99% certain the dash has to come down to get to the heater core. Every Ford I have ever had experience with has been like that.

[Glorywagon]

I have no idea about the tach but I'm about 99% certain the dash has to come down to get to the heater core. Every Ford I have ever had experience with has been like that.

Was a heck of a job in that 88 TC this looks 100 times worse

[bojo68]

Tack works backwards??? Does that mean that instead of going into your tire and deflating it it comes out of your tire and the tire seals up?? :)
Hey, did you get an owners manual with yours?? If so, can you tell me how to reset my clock??:)

[Glorywagon]

Tack works backwards??? Does that mean that instead of going into your tire and deflating it it comes out of your tire and the tire seals up?? :)
Hey, did you get an owners manual with yours?? If so, can you tell me how to reset my clock??:)
Yes but heres a link that will tell you all about your Mark vIII and how to set all your electronics,

It is in 4 part video ;)


http://www.youtube.com/watch?v=TunXdVgV0T0

[Fordace]

is there a needle stop on the tacometer?

[bojo68]

Yes but heres a link that will tell you all about your Mark vIII and how to set all your electronics,

It is in 4 part video ;)


http://www.youtube.com/watch?v=TunXdVgV0T0

Holy snot, no wonder I like the radio, 130 watts, 8 speakers...it ROCKS!:)

[8494]

My 1994 does the same thing. The needle climbs to about 2000rpm then as engine speed increases the tach needle drops to a pointing straight down position. I've taken out the cluster and checked the usual suspects 1) guage face slides down (nope) 2) Tach needle touching clear plastic (nope).

Looks like I'll have to try a new cluster/tach unit or install an after market tach and adapter if I really want a tach. For now I just hold it to the floor till the rpm's stop climbing and then shift somewhere around 7000. 4.6's can handle it. ;<)

Suggestions welcome. (before I fry my engine) :confused:
Thanks!!

[Glorywagon]

is there a needle stop on the tacometer?

didn't see any .

[Glorywagon]

My 1994 does the same thing. The needle climbs to about 2000rpm then as engine speed increases the tach needle drops to a pointing straight down position. I've taken out the cluster and checked the usual suspects 1) guage face slides down (nope) 2) Tach needle touching clear plastic (nope).

Looks like I'll have to try a new cluster/tach unit or install an after market tach and adapter if I really want a tach. For now I just hold it to the floor till the rpm's stop climbing and then shift somewhere around 7000. 4.6's can handle it. ;<)

Suggestions welcome. (before I fry my engine) :confused:
Thanks!!

thats what mine does too. Least Of my worries.;)

[Philip]

Holy snot, no wonder I like the radio, 130 watts, 8 speakers...it ROCKS!:)

that's 132 watts...lol. Yes it rocks solid even after all these years of sound "improvements."

That is so weird about the tach. But nothing in the cluster has a mechanical link, it's electronic/analog hybrid.

[bojo68]

that's 132 watts...lol. Yes it rocks solid even after all these years of sound "improvements."

I hear ya. I had an old(72, and NO, it wasn't tubes) Benz and it had a "Becker Mexico" in it, with factory amp also. Admittedly it had lots of problems, but I'd stack up it's midrange performance up against anything I've heard short of a cd player. Seems a lot of people pay more attention to hype than performance. I get all kinds of kids tellin me their 1000w whatever is better than mine. I doubt it, but mine's damn sure good enough for me.

[mikemark8]

that's bizarre-it goes up to 2000 rpm's and then goes down??? Into 'negative' territory??? Has it always done that?
Not like it'd help, but have you disconnected the battery and let it sit, I know it makes no sense, but these things get electrical gremlins like nobodies business and I have cured mad IAC's like that.
That is really strange, and especially since others have the same problem-:confused::confused::confused: