ducrider123
Junior Member
- Joined
- Jul 31, 2022
- Posts
- 3
- Reaction score
- 0
- Location
- janesville, wi
- First Name
- chris
- Truck Year
- 1983
- Truck Model
- c10
- Engine Size
- 5.3
Thanks for the add. I’ve read tons of posts and have learn all a lot of stuff, but I’m having a problem with my first engine swap.
I swapped a 2002 5.3 LM7 DBC into a 1983 c10. 140,000 mile engine. All stock. Factory computer VATS deleted by LT1swap. I reworked the harness (first time), Doug Thorly mid length headers, original o2 sensors, knock sensors, air cleaner and box, ep381 fuel pump. 4l60e tranny (unknown condition supposedly good)
The engine starts up and comes down to idle. Revs ok with in park, except it takes a second after throttling up for it to come down to idle. When test driving it to test the transmission it does not have any power. Scanned and there are no codes. The exhaust is two pieces of 16” pipe past the O2 sensors. Also, not sure if related but it shift kinda weird. Coming to a stop it doesn’t go down to first gear.
Any help would be appreciated
I swapped a 2002 5.3 LM7 DBC into a 1983 c10. 140,000 mile engine. All stock. Factory computer VATS deleted by LT1swap. I reworked the harness (first time), Doug Thorly mid length headers, original o2 sensors, knock sensors, air cleaner and box, ep381 fuel pump. 4l60e tranny (unknown condition supposedly good)
The engine starts up and comes down to idle. Revs ok with in park, except it takes a second after throttling up for it to come down to idle. When test driving it to test the transmission it does not have any power. Scanned and there are no codes. The exhaust is two pieces of 16” pipe past the O2 sensors. Also, not sure if related but it shift kinda weird. Coming to a stop it doesn’t go down to first gear.
Any help would be appreciated