96 q45 knock sensor

A Q45 forum / Cima forum for the President of Infiniti's lineup. Brought to you by Infiniti Parts USA, your OEM source for Q45 parts!
98q45t
Posts: 6
Joined: Wed Feb 15, 2012 1:50 pm
Car: 96 Infiniti Q45t

Post

hey guys iv been told the knock sensors are a common problem on these q's. so here i am and i need to replace it. could someone send me a url or point in the right direction of where to find a step by step process and how to replace it. i have decently mechanically inclined so i wont have any problems once i get going. thanx in advance


qship96
Posts: 6624
Joined: Sun Nov 24, 2002 11:31 am
Car: 1996 Infiniti Q45

Post

I am assuming you are talking about a 1996 q45 { even though your screen name is 98q45t} if so, the entire upper intake manifold {plenum} must be removed to get to the knock sensors.....and the jist is, there is 35+ rubber hoses under there for coolant,vacuum,and fuel carrying purposes that will be old, hard, and brittle from years of being subject to the massive heat from the engine, and as you remove the upper plenum, many seemingly OK hoses will crack and need replacement. Wise owners always purchase the entire kit and replace every single hose while plenum is off to get to the knock sensors. this is a long, tedious, back breaking job to do the knock sensors,4-6 hours easily for a first timer. The entire kit including all hoses ,knock sensors, and new electrical harness needed is slightly over $1,000 for the parts at discount......you supply the labor.

this topic is discussed many,many times on this forum, some posts with good pictures too....search "plenum" or "knock sensor replacement" and there is a wealth of info....just be sure the threads you read refer to the 90-96Q, as the job on later {1997+} q models is different.

98q45t
Posts: 6
Joined: Wed Feb 15, 2012 1:50 pm
Car: 96 Infiniti Q45t

Post

ok and yes i am talking about the 96 i must have hit the 8 instead of 6. my bad and woo didnt think there would be that much underneath the plenum but ok then so can u hook me up with a site where i could get this kit at

qship96
Posts: 6624
Joined: Sun Nov 24, 2002 11:31 am
Car: 1996 Infiniti Q45

Post

Here is where most of us bought our kit from http://www.infinitipartsusa.com/partloc ... logid=3221

User avatar
Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Post

98q45t wrote:ok and yes i am talking about the 96 i must have hit the 8 instead of 6
Would you like for me to change your name?

Heath

98q45t
Posts: 6
Joined: Wed Feb 15, 2012 1:50 pm
Car: 96 Infiniti Q45t

Post

if u would like i guess its not that big of a deal

User avatar
Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Post

Up to you... if you're cool with it, it doesn't bother me. :D

Heath


Return to “Q45 Forum / Cima Forum”