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I have a weird one/ M47 flaring 200 1990

posted by  machine man on  Thu Feb 24 08:50 CST 2022
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last visit: Wed Oct 22 15:40 CST 2014
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Hi,

I think you both may be correct in the question about the light.

He may have a MPG model computer system that came out in 1986 with the M46 with the electric hydraulic overdrive.
The light is an up shift indicator. It wants you to shift up to lower the RPMS.
IF the clutch is slipping the slight changes in RPM will extinguish the light. It can keep doing this repeatedly. It will on a M46 until it knows it is in overdrive with its OD LIGHT ON.

The M47 does not have the luxury of giving out that knowledge!
There is no overdrive per say as it is a fifth gear direct drive power train.

Maybe this car has a supplanted transmission or other ECU combination going on?

We have no history to work with so that is what makes everyone correct in their hypothesis!
In this case the light needs to be ignored if it’s a true M47 stick shift.

Phil






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New I have a weird one/ M47 flaring [200][1990]
posted by  rice240 subscriber  on Wed Feb 23 21:51 CST 2022 >


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