mercury cougar,1991. 3.8 auto.... I feel it is running a little rough, when idling..?

1991 MERCURY COUGAR
90,000 MILES
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TOBY1TOBY2
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Running rough in idle, seems like, and also a few more times when I start it it runs rough and I press gas pedal to clear it out, but I do not run it very high, just a little gas does it. but seems like a rough idle, but then not all the time, I think. Saw here, have other people had "vacuum leaks" and if so where?? i could check that. also should I change plugs again, they were changed about 6 months age. Car has like 90,000 on it. changed cap, rotor and wires and plugs 6 mos. ago.thinking maybe engine valves? need adjusting?? or oxygen sensors??. Thanks.
Nov 22, 2011 at 8:44 AM
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RASMATAZ
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Try cleaning out the idle air control valve and EGR valve when done do the MAF sensor with an electronic cleaner CRC type
Nov 22, 2011 at 8:50 AM
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