Diesel Place banner
1 - 1 of 1 Posts

·
Administrator
Joined
·
20,774 Posts
Hey y'all I have a 98' ck2500 4x4 with the 6.5 I believe it's a 4l80e trans my grandfather gave me the truck it has 194k miles the truck maybe sat for close.to two years and it would start but then shut off. I picked it up took it to my buddy's diesel shop and they found the tank and lines were clogged up with sludge they got it all cleaned out and got it back up and running. It runs really well and shifts fine but on the hwy running about 20miles home it burned just under a 1/4 tank at 65-70mph. Rpms were around 2500 it just seems like its not hitting overdrive. Also it got up to around 230degress. It's going back to the shop tomorrow to get a new t-stat and coolant flush. I looked at rear end to see if there was a tag but I'm guessing it's possibly the 4:10 does this sound normal for that speed. I pushed it past 70 and it never shifted past where it was it just doesn't seem right. It really feels like I'm not getting into overdrive any and all help with this is appreciated
From the Trans section of the forum: Info: - The most common problem facing the 4L80-E NO...
This may help (y)
 
1 - 1 of 1 Posts
Top