Join Date: Sep 2010
Location: Huntington In.
Thanked 2,180 Times in 2,037 Posts
Mine did that a few years ago when I took a 150 mile interstate trip at 75 MPH, I never worried about it just figured it was because it had a chance to open up and run like it's made to do. It's used to short trips and stop and go driving, eventually it idled down to where it was.
84 K5 Blazer 97 12v, 47re with E-TransControl, Dodge Dana 60 with free spin hubs, Dana 70, B&M Mega shifter
96 F350 SC dually zf5, 4x4, 92 Cummins, THD 5x12's, THD fuel pin, THD HVLP with adjustable fuel pressure mod, WM, h1c 60/60/12cm WG wired