rough idle and more???

[Gt44]

ok........ a Few things.......
1. my car makes a buzzing/rubbing noise under 75%-100% throttle
2. i my idle sounds like i have a lumpy cam when i put the car in gear...i idle at about 900rpm, but when its in neutral it idles at 1400rpm...i checked timing, seems good... just changed wires(8.5mm) and plugs(autolites 25's gapped to .052) and changed my o2 sensors
i have a 1988 lincoln mark VII but it has the same 5.0L as the stang.

 

[jrichker]

Dump the codes and see what the computer says is wrong…

Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great.

See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html