Knock sensor needs replacing

JOSHUA ALGER

MEMBER
2009 NISSAN PATHFINDER
141,500 MILES

I am looking in to purchasing the vehicle listed above. It looks to be in really good shape, but the seller says it needs a knock sensor. Should I avoid this vehicle? What problems would I encounter if I got this vehicle and replaced the sensor right away?

Thursday, March 28th, 2019 AT 2:15 PM

5 Replies

ASEMASTER6371

MECHANIC
52,796 POSTS

Good afternoon,

What motor do you have in the truck?

Roy

Was this

answer

helpful?

Yes

No

Thursday, March 28th, 2019 AT 3:07 PM

JOSHUA ALGER

MEMBER
3 POSTS

The 4.0L V6.

Was this

answer

helpful?

Yes

No

Thursday, March 28th, 2019 AT 3:13 PM

ASEMASTER6371

MECHANIC
52,796 POSTS

Okay, Why are you replacing them? Are there codes for the sensors? Were there other codes as well?

The intake manifold has to be removed to gain access to the sensors.

Roy

Image (Click to make bigger)

Was this

answer

helpful?

Yes

No

Thursday, March 28th, 2019 AT 3:21 PM

JOSHUA ALGER

MEMBER
3 POSTS

Please reread the original post.

Was this

answer

helpful?

Yes

No

Thursday, March 28th, 2019 AT 3:22 PM

ASEMASTER6371

MECHANIC
52,796 POSTS

I read the post. I am trying to get a background to see if there is a history.

I would not purchase this vehicle until this issue is resolved by the seller. This may be the reason it is being sold. Otherwise, it is your headache.

Roy

Was this

answer

helpful?

Yes

No

Thursday, March 28th, 2019 AT 3:27 PM