Steady cruise stumble

[kjhansen]

Howdy! My '87 TR runs strong when accelerating and slows down OK, but at steady throttle will stumble. Wassup with that? Makes for irritating freeway drives, that's for sure.
New fuel pump, clean filters, fairly new coil pack and module, 350 MAF with Translator. Cleaned the battery terminals and checked the battery's ground.
Keith

 

[northern87gn]

How's your timing set? Had that happen on a diff car with a 3.8. drove me nuts for over a year. Chain was just about ready to jump on the trashed top sprocket.

 

[kjhansen]

Now that's a thought. 150,000 hard miles on the original timing gear and chain. Sigh.
Keith