I have to ask this in a different way.

Tiny
ANONYMOUS
  • MEMBER
  • 1991 FORD THUNDERBIRD
  • 200,000 MILES
I have to ask this in a different way 91thunderbird 3.8 no turbo I put a tach in it to know how high my engine is running when engine is at normal temp and in park what should rpm on tach be reading
Saturday, January 12th, 2013 AT 5:06 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
At an idle, it should be around 900 RPM's
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Saturday, January 12th, 2013 AT 5:53 AM

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