Hi, New to the group, but not to yahoo groups for my other vehicles - hope this site is like the others. I just bought a 95 F150 XL with the 300 I-6. After a few miles I noticed the engine stumbles/hesitates at different engine RPM's. There are times it runs fine, other times it stumbles - its very annoying. I have replaced: 1. Spark plugs (original one in cyl #3 was wrong plug type!) 2. Ignition wires 3. Cap and rotor (they needed replacing) 4. fuel filter 5. Pulled rear gas tank & checked filter on fuel pump - its fine 6. Checked coil - its fine 7. Ran 3 tanks of gas through with fuel cleaner additive These checks and mods have not helped the stumbling. Do any fellow gearheads have any ideas on what to look for? Thanks Jerry

PLEASE!! Let me know what you found with this. My 2000 4.6 Sport started a bit ago and seams to be getting worse. Fine when shifting manualy. Seams worse going up hill.Was thinking the trans is going, I put a heall of a load on her not to long ago and have been putting miles on it lately. Really cant aford any trans work and even tougher to find someone that wont screw me. Hope you got yours worked out! Thanks jim