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1993 Dodge Dakota 3.9L Tachometer Erratic
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smi889
Novice
Jun 11, 2011, 8:14 AM
Post #1 of 2
(2870 views)
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1993 Dodge Dakota 3.9L Tachometer Erratic
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Yesterday my tachometer (OEM) started acting up. The RPM is much higher than normal. Auto transmission shifts normally even in overdrive. I have a Haynes Manual and cannot find out where you pick up the signal. I know it goes through the PCM and some use the distributor as a source. Anyone know exactly where the signal source comes from?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 11, 2011, 8:21 AM
Post #2 of 2
(2866 views)
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Re: 1993 Dodge Dakota 3.9L Tachometer Erratic
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The PCM uses the same reference signal that it uses to run the engine with.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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