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1990 tack not working

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Old Jul 10, 2006 | 02:55 PM
  #1  
hill's Avatar
hill
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From: tullahoma tn
Default 1990 tack not working

the tack does not work when you start the car the tack jumps up to 6 then back down the 0 i hooked my scaner up and it gives me the RPM any ideas thanks
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Old Jul 10, 2006 | 06:27 PM
  #2  
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VAHROOM
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From: Chandler AZ
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Do a search on "tach filter" and you should get some good ideas. There is a/should be a filter that goes from the "TACH" terminal on the distributor to the instrument panel. Make sure it is connected and grounded properly. It looks like a condensor with a long white lead.
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Old Jul 10, 2006 | 07:50 PM
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Tommy T-Bone's Avatar
Tommy T-Bone
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From: Homestead Fl
St. Jude Donor '06-'07-'10-'11-'12-'13-'14
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While your on the subject ..... How accurate is the tach in the 1990 with a six speed. When I run the rpms up they spike beyond the numbers. Whats up with that?
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Old Jul 10, 2006 | 08:52 PM
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From: OBAMA IS HITLER
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they are notoriously inaccurate. mine reads about 200 rpms high.
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