Nissan

Nissan repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

Is the knock sensor for a 2000 Nissan Altima SE under

Customer Question
Hello Mike Is the knock...
Hello Mike Is the knock sensor for a 2000 Nissan Altima SE under manifold? I am having a problem getting thru emission test . I've replaced the EGR , what is suggested next to complete the project? The print out says P0720-Evap leak(0.080") detected /P0455_and P0720. I'm a woman so be easy, do I need to replace everything to pass NOW? Thanks!!! Deborah
Submitted: 3 months ago.Category: Nissan
Show More
Show Less
Ask Your Own Nissan Question
Answered in 44 minutes by:
3/13/2018
Nissan Mechanic: Jay, Nissan Technician replied 3 months ago
Jay
Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 21,595
Experience: 20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
Verified
Hello my name is ***** ***** thank you for your question.Please give me a few moments to review your question
Ask Your Own Nissan Question
Nissan Mechanic: Jay, Nissan Technician replied 3 months ago

Ok, So the knock sensor is located on the back side of the engine block above the oil filter. But neither of these codes are for that.

The P0455 is a evap gross leak code. Most commonly caused by the Evap Vent control valve. But the Canister that the valve is mounted to also cracks normally when trying to remove it. So you would need a vent control valve and canister to resolve that code.

The P0720 is a Revolution Sensor on the Transmission. That would need to be properly checked to determine if it's wiring issue or a sensor issue. Or if there is a internal transmission issue causing that code.

Ask Your Own Nissan Question
Nissan Mechanic: Jay, Nissan Technician replied 3 months ago

Where did you come up with the knock sensor?

Ask Your Own Nissan Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a nissan mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Jay Your Own Question
Jay
Jay
Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 21,595
21,595 Satisfied Customers
Experience: 20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer

Jay is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro!

cjazLexington, KY

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

< Previous | Next >

Meet the Experts:

Chris(aka-Moose)

Chris(aka-Moose)

Nissan Technician

676 satisfied customers

16 years of experience

Tim Mohr

Tim Mohr

ASE MASTER TECH

589 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Marty

Marty

ASE Certified Technician

154 satisfied customers

ASE & Bosch master tech. 30 years experience.

Mike V.

Mike V.

Nissan Technician

9,365 satisfied customers

Nissan factory trained and Certified Subaru Technician.

Ron

Ron

ASE Certified Technician

562 satisfied customers

34 years of automotive Repair

Anthony

Anthony

ASE Certified Technician

332 satisfied customers

ASE Master Automobile Technician with over 18 years exp. in this field.

Richard

Richard

ASE Certified Technician

92 satisfied customers

Nissan Tech ASE certified technician

< Previous | Next >

Related Nissan Questions
my 2000 xterra wont start...cranks but does not start,,code
my 2000 xterra wont start...cranks but does not start,,code knock sensor replaced it and replaced fuel pump and filter....still no start and sometimes starts but wont keep idling...can anyone help me… read more
Jay
Jay
Nissan Technician
21,595 satisfied customers
1999 nissan quest: Knock sensor..flow..van..the egr valve hooks
I have a 1999 Nissian Quest - I have been getting a code P325 Knock sensor and P400 insufficient flow detected - I had put a new intake gasket on the van - I might have got some vac lines crossed woul… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
My short term fuel trim are reading between -25 and +25
My short term fuel trim are reading between -25 and +25. STFT1 is oscillates between 0 and -25. STFT2 oscillates between 0 and +25. It has a slight stumble or miss at idle. It runs fine when driving e… read more
Jay
Jay
Nissan Technician
21,595 satisfied customers
2004 xterra: control valve..says failed canister vent solenoid..evap
I am having too many problems with my canister vent control valve on my 2004 xterra. says failed canister vent solenoid, and failed evap pressure sensor. I recently replaced teh knock sensor, as it wa… read more
jazzmaster
jazzmaster
LEAD AUTO TECH
Vocational, Technical or Trade Scho
1,124 satisfied customers
Where is the knock sensor located on a 2003 Nissan Altima 2.5 S?
Where is the knock sensor located on a 2003 Nissan Altima 2.5 S?… read more
Jay
Jay
Nissan Technician
21,595 satisfied customers
I have a Nissan Xterra 3.3L supercharged and for the first
I have a Nissan Xterra 3.3L supercharged and for the first 5 minutes or so when the car is cold it has good power (acceleration) but once it warms up it can harley get out of its own way (still drivab… read more
Jay
Jay
Nissan Technician
21,595 satisfied customers
where is the knock sensor on a 2003 nissan altima 3.5l engine?
where is the knock sensor on a 2003 nissan altima 3.5l engine?… read more
brownjeff
brownjeff
Associate Degree
13,873 satisfied customers
Nissan xterra: a P0328 PD and a p300 on OBD...knock sensor
04 Nissan xterra showing a P0328 PD and a PO300 on OBD. Trying to get to knock sensor to test it!!… read more
Roy
Roy
Vocational, Technical or Trade Scho
5,421 satisfied customers
Mike, I took my 2008 SE V-6 to the dealer because my air
Mike,I took my 2008 SE V-6 to the dealer because my air conditioner was not blowing cool air. They did a diagnostic test wwith a dye and said the test revealed a leak from a hole in the evaperator. Th… read more
3pac2222
3pac2222
nissan master auto tech
Associate Degree
2 satisfied customers
I recently had a tune up on my 97 Nissan Altima and the
I recently had a tune up on my 97 Nissan Altima and the error codes and ecu were reset. It has been over a week and two of my emissions readiness tests (Catalyst and EGR) are still not completed and I… read more
Jay
Jay
Nissan Technician
21,595 satisfied customers
My nissan-pathfinder 2005 failed the emission test due to
my nissan-pathfinder 2005 failed the emission test due to oxygen sensor monitor not ready...… read more
Jay
Jay
Nissan Technician
21,595 satisfied customers
Pathfinder LE: 1997 Pathfinder 4WD. SES light on with P0400
1997 Pathfinder 4WD. SES light on with P0400 code. EGR control solenoid and vacuum valve have been replaced,as well as Evap control. Light still illuminated, any ideas?… read more
XtraTech
XtraTech
Sr. Technician
Bachelor's Degree
149 satisfied customers
1998 nissan altima 2.4l gxe.........engine at idle is spuratic, sputtering as if it wants
1998 nissan altima 2.4l gxe.........engine at idle is spuratic, sputtering as if it wants to die out .....have to give it gas to start...runs great when being driven...would this be caused by the knoc… read more
HondaPlatinum
HondaPlatinum
High School or GED
148 satisfied customers
1998 Nissan Altima: drove..000 miles..catalytic converter.., egr Flow
I recently had the Evap hose on my 1998 Nissan Altima replaced, after which, at the mechanic's suggestion, I drove the car extensively (for 2,000 miles) to get the car's system monitors to kick in so … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
My check engine light is on and the mechanic..knock sensor..evap..vent
i went to the shop today because my check engine light is on and the mechanic told me it read these codes... 400 exhaust gas recirculation flow, 325 knock sensor, 446 evap emission system vent control… read more
3pac2222
3pac2222
nissan master auto tech
Associate Degree
2 satisfied customers
1999 Nissan Pathfinder: I got a fail since the check engine light was
I just got back from smogging my 1999 Nissan Pathfinder. All of the tests passed but I got a fail since the check engine light was on and the technian read the codes as PO400, PO450, and PO325. How mu… read more
Roy
Roy
Vocational, Technical or Trade Scho
5,421 satisfied customers
2003 Altima: knock sensor..SE...front of the oil filter..autozone
I am trying to replace the knock sensor on my 2003 Altima 3.5 SE. Can you tell me where it is? Everything I've read says the sensor should be in front of the oil filter, however what is there does not… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
1996 Nissan Maxima: The check engine light is on, I..P0325
I have a 1996 Nissan Maxima GLE. The check engine light is on, I erased the codes and they came back, P0325 and PO443. I initially had a PO120 which has not come back yet. I did replace the rear Oxyge… read more
Infiniti Nissan Specialist
Infiniti Nissan Specialist
Master Technician
Vocational, Technical or Trade Scho
915 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x