Ranger bucking at 15k rpm

[Singer]

Sorry, I think I'll just shut up from here in on this thread, it's already confusing enough as it is. ??

Appreciate your help

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[Singer]

Wasn't there a thread about the EGR thingy causing similar issues ?

We'll, they changed the EGR thingy and problem is solved. Ford spent over 10,000 dollars trying to find the problem. Got to hand it to those guys.