Mechanics

DEVELOPED ROUGH IDLE OR MISS AT IDLE SPEED.

1994 Ford Ranger • 15,000 miles

94 Ranger, 2.3 with manual trans. Developed rough idle or miss. Runs good at hi rpm's. When warmed up rough idle at startup or miss. Really notice at stop sign when I take off sputters around till engine reaches higher RPM'S then runs good. I noticed if engine does idle normal then suddenly rpm's will drop & engine runs rough for a few minutes then takes off & runs normal. Thank you for any information on this problem.
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Superrat
December 21, 2011.




Check fuel pressure and scan for codes first

Hmac300
Dec 21, 2011.


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