What are knock sensors and how much do they cost to replace?
The 02 WJ i am looking at has two codes stored in the odometer when i do the key trick to get the codes. P0325 and P0330. These are codes for knock sensors on both banks. There is no check engine light or anything, the codes just show up on the odometer when i do the key trick. It seems to run great. Its the 4.7 HO. How much do they cost and how crucial are these things? I really want this jeep and need to know if i need to back out because of these sensors. What does a knock sensor do? Thanks.
Gone: 97 Cherokee Sport