shanegtr
Full Access Member
- Joined
- Sep 29, 2018
- Posts
- 324
- Reaction score
- 315
- Location
- Perth, Australia
- First Name
- Shane
- Truck Year
- 1989
- Truck Model
- R2500 Suburban
- Engine Size
- 454
Hi all, just wondering where abouts I could find the knock sensor on a 454 TBI? My water pump is shot and it knocking quite badly from the failed bearing (another one on order
) but around the time the water pump got worse I also experienced a big loss of power. Just wondering if the knock sensor could be picking up the water pump? Running the engine with the drive belt off to isolate the water pump the engine runs noticibly smoother at idle and when giving it some revs - however I havent gone for a run with no water pump so I dont know if the power would be back to normal or not. Thinking that unplugging the knock sensor might work to test the theory of the power loss