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Wacky Tachometer


steveoelo

steveoelo

Mighty Canuck
Joined
Mar 26, 2016
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Vehicle Year
1990
Make / Model
Ford
Engine Size
2.9
Transmission
Manual
My 90 ranger with the 2.9 has a weird issue, the tach sometimes reads well over what the actual rpm is. It's defiantly a connection but where would I look? The coil has several wires coming out of it
 


steveoelo

steveoelo

Mighty Canuck
Joined
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Messages
82
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Points
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Vehicle Year
1990
Make / Model
Ford
Engine Size
2.9
Transmission
Manual
UPDATE if anyone has this problem, make sure all of your plug wires are making good contact with the distributor. Pushed all of the wires down and hasn't done it since
 

RonD

Official TRS AI
TRS Technical Advisor
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canada
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1994
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Ford
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Tach signal comes from TFI module, but is essentially like other older tachs which get signal from Coils "-" post.
On the TFI tach wire is spliced into that wire, coils "-".
 
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