BrewCalhoun

Hello,
My engine light came on, and I got this code: P0325. Apparently my knock sensor needs attention. Anyway, can someone tell me where it is on my truck? Its an 05 FX4.

Thanks!

nickpatton_189

iTrader: (2)

I know on my 2006 silverado it was in the valley of the motor between the heads. Under the intake manifold

Sam P.

I had to replace one . Was "malfunctioning " come to find out the wires were cut . But you got 2 of them under the intake manifold bank 1 passanger side on top of engine block and bank 2 drivers side top of engine more toward the front . Quick connects back by the firewall.

BrewCalhoun

Thank you, Gentlemen!

BrewCalhoun

Just one follow up question. Do I have to remove the intake to remove the knock sensors? I finally popped the hood tonight and I couldn't see anything resembling the sensor, hence my question.

0hsiks_crewcab

Unfortunately yes. Good luck with it.

Dsherman

I just finished with the R&R of my intake. The connectors that are against the firewall are a bitch. especially the vacuum for the brake booster. (driver side close to block) Took 2 days to finish.

BrewCalhoun

Yay, thanks for the tip D! Any other mods or maintenance I should consider taking advantage of while having the intake off? I know a supercharger is one, but not sure if I could sneak it past the wife!

CurtSr

If you haven't tried to reset the code, I would try that first and see if the code returns. I had the same code so I disconnected the battery for 10 minutes and it cleared. Its been a month and hasn't returned.

BrewCalhoun

Cleared it for the 4th time yesterday with my SuperChips tuner. I was hoping it would disappear after the first time but that was a no go.....