JGrantPlain
Junior Member
so I picked up my truck up yesterday and it was in 4wd high which I didn’t notice until I got on highway at about 45 mph the truck started to clunk and shake bad. I switched to 2 wd and it went away but check engine line came on and has not gone off. Drove about 5 miles in 2wd with no problem, stopped and put in 4 wd high and again about 45 mph I got the same clunk and shake. Truck only has 800 miles and last night was first time I’ve used 4wd at speed over 25 mph. I did put Bilstien strutS in front at 2.8 and Icon dual rate springs earlier in the week but have had no issues until using 4wd at speed. Any ideas what this might be?