Corrosion of the Fuel Tank Harness Due to Water Leak on Buick Terraza

Corrosion at the fuel tank to body harness may cause the Check Engine Light to illuminate or a crank no start condition. This corrosion issue is most commonly caused by a water leak inside the vehicle. Any damaged wiring or connectors will require replacement.

RepairPal Verified
Average mileage: 108,500 (81,000–136,000)
2 model years affected: 2005, 2006
4 people reported this problem
2 people shared problem details
2006 Buick Terraza136,000
Check engine light came on. Was repaired by replacing the harness for EVAP system and fuel system. Also connection in floor.
1 person likes thisFlag inappropiate
2006 Buick Terraza81,000
Awaiting repair
Related Items:
After we fill up with gas the service engine light comes on,low fuel light appears and the tank...
fuel gauge on empty-check engine lite on - low fuel message - fuel tank is full
the check engine light was on i had it checked and the code po449came up
The light is on after the car ran out of fuel. Now the light remains on. I just bought the c...
The ac drain hose has been checked by 2 different professionals and it is clear. The water intr...