Question about 2003 Nissan Altima

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2003 Nissan altima 2,5 litter, can the knock censor cause it not to start

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Knock sensor will not prevent car from starting.

Posted on Sep 24, 2017


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Posted on Jan 02, 2017


SOURCE: 2003 Nissan Altima?

Where is the sensor placed on the car?

Posted on Oct 07, 2008

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SOURCE: crankshaft and camshaft sensors location in nissan altima 2003

You are incorrect sir. There is a very good Youtube video showing you exactly where it is that is how I changed mine. The Crankshaft is located behind the engine block below and around from the cam sensor which is easly spotted looking at the engine. The crankshaft is in a difficult spot but once you figure out where it is it's easy...ish hope this helps

Posted on Dec 10, 2009

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SOURCE: how to replace knock sensor in 1995 nissan altima

remove the intake manifold ,remove radiator ,remove radiator intake and outake housing, remove fan ,remove all belts: power steering, alternator and if you have a/c, remove harmonic balancer ,remove timing belt covers, remove timing belt remove intake housinng once you have remove all the above, your freaken engine will look naked, you can see the location of the knock sensor is locate in the engine valley

Posted on Feb 19, 2010

  • 23 Answers

SOURCE: 2003 nissan altima

First of all, you'll have to clarify which belt it is you're talking about. Is it a SERPENTINE drive belt or a Timing belt? Two totally different belts.
If its a timing belt, you're in luck as Nissan Altimas have timing chains on the engines which shouldn't need replacing for at the very least 100,000 miles. If you're talking about the serpentine drive belt on the other hand, there's really only one way it can go over the pulleys. One side of the belt it grooved, and one side is smooth. There's only one way it can go over all of the pulleys while having the grooved face sitting on grooved pulley surfaces,... should be really easy to figure out.

Posted on Mar 25, 2010

  • 237 Answers

SOURCE: engine is misfiring. 2.5L 2003

one of the small screws that secure the plates to the shaft of the swirl control system inside of intake manifold mostlikely fell out and wound up in the cylinder of the damged plug causing the damage to the plug.there was a recall by nissan to remedy this by replacing screw with your local dealer for info.

Posted on Feb 20, 2011

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1 Answer

2002 Nissan Altima crank shaft censor located bank 2

there is only one crankshaft sensor so you will be looking for a CAM shaft sensor for it to be on bank 2
go google and type in --location of cam shaft sensors on nissan altima engine ---

Dec 18, 2016 | Nissan Cars & Trucks

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Oil is seeping into coil packs in my 2003 2.5 Nissan Altima. what can be causing this?

Hi Brianna,check your valve cover gaskets,you have 2,they could be leaking causing this,Nissan is know for this,yes I have one too.

Dec 01, 2013 | 2003 Nissan Altima

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Code P0330 ( CKP sensor) ,what is that on Nissan almera 1.4

This is a Knock sensor bank 2 code. I would replace the knock sensor and also the harness to the sensor.

Feb 02, 2011 | 2003 Nissan Altima

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Where is the knock censor located at


Aug 06, 2010 | 1999 Nissan Altima

1 Answer

I need the torck specks for torcking the head to the block on a 2004 nissan altima 2.5 litter

step 1- 72 ft bls
step 2- loosen 0 ft bls
step 3- 32 ft bls
step 4- 75 o ( degrees )
step 5- 75 o ( degrees )

Mar 13, 2010 | 2004 Nissan Altima

1 Answer

Where is the knock sensor located on an 03 nissan altima

Hello and thank you for using FixYa!

The knock sensor is located on the back side of the engine block by the oil pressure switch, under the intake, but accessible from underneath the car.

Thanks Jay!

Jul 10, 2009 | 2003 Nissan Altima

1 Answer

My 2003 Nissan Altima 2.5s just started to smoke & knock

what colour smoke? if white, you may have a blown head gasket, remove the radiator cap look for signs of oil in coolant, if low top up with water and start engine,if coolant is trown from radiator this confirms same, also look for external coolant and oil leakk on cylinder can also check cylinders by re moving spark plugs cank engine and see if coolant srays out holes

Jul 09, 2009 | 2003 Nissan Altima

3 Answers

2003 Nissan Altima 2.5S, Check Engine Light Problem.

this problem could be caused by the mass air flow censor, i had the same problem with my car. it is really pricey at the dealer so you might want to check elsewhere for this part. I found one at a scrap yard for 85% less that the dealer and i also got life time warranty, the dealer does not offer any warranty on this part.

Oct 22, 2008 | 2003 Nissan Altima

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