Nissan

Nissan repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

2.4l truck: fluctations and hesitations withacceleration and…

Customer Question
fluctations and hesitations withacceleration and...
fluctations and hesitations withacceleration and idling modes
Submitted: 3 years ago.Category: Nissan
Show More
Show Less
Ask Your Own Nissan Question
Answered in 15 minutes by:
6/28/2015
Nissan Mechanic: Matt, Engineer replied 3 years ago
Matt
Matt, Engineer
Category: Nissan
Satisfied Customers: 23,472
Experience: BEng hons Mech engineering, worked in auto industry for 22 years on engine, transmission and suspension design
Verified
Hello I'm assuming that this is the petrol engineso this could be an airleak after the airflow meter, any air dragged in here isn't 'seen' by the ECU and so not compensated for and can lean the engine out and can also allow the engine to rev up when not desired causing rough running.As its a mechanical fault it tends not to turn on the fault light and you can sometimes hear a 'hissing' noise with the enginerunning. Check the hoseclips for tightness and inspect the trunking for any cracks or splits and also all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best way to locate a leak is to have the engine running and warm and then spray lighter gas/propane around each joint in turn. If the engine rev's up you've found your leak.Now you might think that spraying lighter gas around a hot engine isn’t wise, however the flash /ignition point of gas is about 400°C so you need a naked flame or sparkto set it off and I’ve used this method for many years without incident.Work your way through each possible joint one at a time and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to provide a spraying 'wand' and allow a direct blast of gas into each area, especially those difficult to reach with large implements.
Ask Your Own Nissan Question
Nissan Mechanic: Matt, Engineer replied 3 years ago
Hi
do you still need help?
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 Matt Your Own Question
Matt
Matt
Matt, Engineer
Category: Nissan
Satisfied Customers: 23,472
23,472 Satisfied Customers
Experience: BEng hons Mech engineering, worked in auto industry for 22 years on engine, transmission and suspension design

Matt 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

747 satisfied customers

16 years of experience

Tim Mohr

Tim Mohr

ASE MASTER TECH

602 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Marty

Marty

ASE Certified Technician

161 satisfied customers

ASE & Bosch master tech. 30 years experience.

Mike V.

Mike V.

Nissan Technician

9,482 satisfied customers

Nissan factory trained and Certified Subaru Technician.

Ron

Ron

ASE Certified Technician

589 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
2007 nisson goes wont come out of limp mode. Versa cvt tans
runs till put into drive triedun hooking neg cable … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
I have a 1996 nissan 300zx na. Check engine light is
I have a 1996 nissan 300zx na. Check engine light is providing a P0120 code for TPS. I have cleaned out both throttles with throttle cleaner and have also Sea Foamed the chamber and the IAC vacuum lin… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,321 satisfied customers
Throwing mass air flow sensor code. Engine has not stalled.
Engine has not stalled. But there is hesitation when acceleraring. I 1st cleaned the maf sensor and cleared the code. Drove for about 700 miles code didnt return but still jerky acceleration and rough idle. I then replaced the maf sensor with a duralast one and the car imediately went into limp mode with vdc and slip off lights and ses light returned … read more
Gunvir Singh
Gunvir Singh
1,949 satisfied customers
I Have Installed The Throttle Body After I Clean It Up And
I Have Installed The Throttle Body After I Clean It Up And Started The Engine And It Seems To Have A Fluctuatation In The Idle,How Do I Stop The Fluctatation In The Idle.… read more
Jake
Jake
309 satisfied customers
Armada: My oil pressure gauge bounced then the truck idle rough.
My oil pressure gauge bounced then the truck idle rough. I pressed the gas petal and the motor hesitated ... I turned the truck off then tried to start it. It's idle was extremly rough.. I turned it o… read more
3pac2222
3pac2222
nissan master auto tech
Associate Degree
2 satisfied customers
Nissan Murano SE: I have a 2003 Nissan Murano SE, the engine
I have a 2003 Nissan Murano SE, the engine is running rough, hesitates and tries to stall at idle and sometimes does. Also the engine stalls, hesitates, stumbles, surges and has poor acceleration when… read more
3pac2222
3pac2222
nissan master auto tech
Associate Degree
2 satisfied customers
Titan: highway speeds..new plugs..throttle body..cleaner
my Titan is hesitating severely upon acceleration and at highway speeds. It has new plugs and the throttle body has recieved a treatment with cleaner, but didn't change the performance. The truck has … read more
FixUrNissan
FixUrNissan
Shop Forman / Lead Tech / Parent
Vocational, Technical or Trade Scho
1 satisfied customers
2.4: gas bad replaced fuel pump..( leaking) runs strong..tps..lifters
Hey Jay you were right on my Nissan 2.4 93 model...tank was filthy and gas bad replaced fuel pump..( leaking) runs strong..but idles high lobes consistanly up and down. Adjusted TPS and even put used … read more
FixUrNissan
FixUrNissan
Shop Forman / Lead Tech / Parent
Vocational, Technical or Trade Scho
1 satisfied customers
97 Nissan pickup: hesitates..accelerating..I press the gas pedal
My '97 Nissan pickup has a strange symptom. After heating up, it often lunges or hesitates when accelerating. Idles fine, but in every gear the lunging is horrible when I press the gas pedal. I change… read more
Danielle-Moderator
Danielle-Moderator
5 satisfied customers
2000 Nissan Xterra: my battery..15 minutes..Now my truck..hesitating
The other day, I had my battery replaced. I might have had the battery off for about 10-15 minutes. Now my truck, 2000 Nissan Xterra, is hesitating when I come to a stop and idle. I have a very low id… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
intermittant..miss..idle the tack would stay steady for a few seconds
This is an intermittant problem that up till now comes and goes. Started a couple months ago. Engine would hesitate or miss a few beats then it would go into a mode where the engine will stall when yo… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
96 Nissan Altima: hesitates..stalls..It runs rich with fouled plugs
'96 Nissan Altima, 240K miles, Car hesitates and stall when giving gas. Ocasionally stalls on idle. It runs rich with fouled plugs. Runs fine with no stalls when MAF is unplugged. MAF voltages checked… read more
Rick
Rick
Master Technician (Team Leader)
Vocational, Technical or Trade Scho
350 satisfied customers
My car hesitates when accelerating and acts like it..idles fine
my car hesitates when accelerating and acts like it wants to die when in drive at idle, idles fine in park… read more
Mike V.
Mike V.
Nissan Technician
Subaru and Nissan factory training.
9,482 satisfied customers
1989 sentra: hesitates and skips..40 mph..my trans is automatic.
my 1989 sentra kind of hesitates and skips when i accelerate quickly up to around 5 mph. it then runs fine until i get to around 40 mph. then it starts to happen again and can't accelerate any faster.… read more
AutoTech08
AutoTech08
Workshop owner
Vocational, Technical or Trade Scho
676 satisfied customers
2001 Sentra: with a 2.0 litre engine and a manual transmission..hills
I have a 2001 Sentra with a 2.0 litre engine and a manual transmission. I have been having a hesitation problem for the past few months. The hesitation usually happens while maintaining speed, or tryi… read more
FixUrNissan
FixUrNissan
Shop Forman / Lead Tech / Parent
Vocational, Technical or Trade Scho
1 satisfied customers
Car starts without hesitation..runs fine..dies..check engine light
When starting car the car hesitates and then when put in gear hard to move on automatic and in manual showing gear 5 at stand still but if car starts without hesitation runs fine and then dies and sta… read more
Roy
Roy
Vocational, Technical or Trade Scho
5,421 satisfied customers
2001 nissan maxima: v6..p0420 catalyst code and dies at stops
2001 nissan maxima v6 with p0420 catalyst code and dies at stops after warm up. Datastream and prelim tests do not support catalyst problem. Are there any common problems that would cause dying that I… read more
Infiniti Nissan Specialist
Infiniti Nissan Specialist
Master Technician
Vocational, Technical or Trade Scho
915 satisfied customers
2005 Nissan altima: 3.5 SE..75 mph on the interstate..engine power
2005 Nissan Altima 3.5 SE w/ 54K miles. Last night I was driving at 75 mph on the interstate when I felt a brief loss of engine power - just a split second. Then the engine pickup was drastically redu… 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