engine

455

Asked by Sep 06, 2007 at 03:09 PM about the 1980 Ford F-150

Question type: Maintenance & Repair

what would make a trucks engind jumpie? it has sit for 2 1/2 years and it was started ever now and then, then when i got home from being deployed in south korea, the truck jumps in idle. And also what is a good replacement transmission for a 1984 AOD transmission out of a LTD for the truck?

1 Answer

15,135

Hi snake42787, Up front, I have no idea about a good replacement transmission. But several things could be causing the engine to have a "jumpie idle". Mostly common would be the crystalizing of the existing fuel. Unfortunately, this is a messy job to empty the tank and clean it out, replace the filters and possibly the fuel pump. You may want to run a good quality fuel cleaner (like Lucas) through the fuel system for a while to clean it out once it's been reassembled. Another possibility could be the timing and/or points, cap and rotor, spark plugs and/or plug wires. I would suggest that all of these items be replaced/adjusted accordingly. Just because nothing changed on the vehicle since it was last driven doesn't mean that something didn't go bad during that time. Hope this helps!

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