Tachometer question
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Posting Guru
Joined: Mar 2005
Posts: 1,533
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From: Dexter, MI
Tachometer question
Can someone tell me if a tachometer for a four cylinder engine (89 - 92 models) is the same as the six cylinder one. I have the 4 cyl. engine and tach in my truck - It's reading slow. I also have an instrument panel from a 92 Explorer. Would switching tachs work?
Cargo Master
Joined: May 2004
Posts: 3,007
Likes: 5
I think the tach gets an electronic signal from the pcm (powertrain control module). Does anyone really need a tach? I mean what is it good for, really? Sure it's all hot roddy and whatever, but is it necessary to know exactly how many rpm's you're turning? In a four banger? afterall. If you're going over 2 grand, don't.
