MopaR&D
Nerd Member
I'm doing some minor repairs and lots of catch-up maintenance on a coworker's 2000 Durango with a 5.9L Magnum. She made the classic mistake of letting her oil go roughly 8,000 miles since the last change and the engine seems to have (from what I've found on YouTube of similar noises) a very light rod knock. I tried to explain that it COULD be serious but she might be able to get by for a while. She knows nothing about cars it just happened to be the family SUV that got passed down to her when she went to college and is in otherwise great shape for having 170k miles on the clock. Have you guys ran SBMs with light rod knock for a while, or is it guaranteed to throw a rod out the side of the block after 100 miles? It's a very light but noticeable knocking that only shows up around 2000-3000 RPM when it's not under load i.e. about to shift or free-revving in Park. Definitely not valvetrain noise I'm familiar with that, plus this is at a higher frequency (rattles more rapidly than a lifter tick/tap).
I also stopped by the parts store to grab codes for a CEL and it came up with P0132 - Oxygen Sensor Bank 1 Sensor 1 Shorted to Voltage; P0135 O2 sensor heater for same; and P0171 - Fuel System (same bank/sensor) Lean. Think I should throw a new O2 sensor in there? It is averaging around 13-14 MPG and it has part-time 4x4 I'm thinking it could be a bit better?
I'll try to get a video up tomorrow or Sunday when I'm off work...
I also stopped by the parts store to grab codes for a CEL and it came up with P0132 - Oxygen Sensor Bank 1 Sensor 1 Shorted to Voltage; P0135 O2 sensor heater for same; and P0171 - Fuel System (same bank/sensor) Lean. Think I should throw a new O2 sensor in there? It is averaging around 13-14 MPG and it has part-time 4x4 I'm thinking it could be a bit better?
I'll try to get a video up tomorrow or Sunday when I'm off work...