How many RPM's should a 1990 F150 Idle at?

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Old 12-13-08, 05:39 PM
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How many RPM's should a 1990 F150 Idle at?

How many RPM's should a 1990 F150 Idle at, it has the 5.0 engine?

Also how many RPM's should a 1990 Geo Prizm with a 1.6 engine idle at?

Both of these are A/T.

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Old 12-13-08, 09:43 PM
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both should idle in the 650 to 750 rpm range, there should be a decal under the hood with the exact range listed

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