Toyota

Have Toyota Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

I have a 2010 Toyota Venza 3.5L AWD. I am having an

intermittent problem on a both...
I have a 2010 Toyota Venza 3.5L AWD. I am having an intermittent problem on a both cold and hot starts when you initially start the car. When you go to crank the car it stumbles upon starting. Normal start is usually a short crank and runs smooth. once the car starts up and runs, the venza runs great. it only has an issue upon starting. We have replaced the Plugs with original Denso and have added a new air filter. the engine has 115.000 miles and never had the plugs changed so we though we would start there. There is no codes. Not sure what the issue might be and looking for suggestions and help thank you! if you need any more info I will do my best to explain.
Show More
Show Less
Ask Your Own Toyota Question
Answered in 1 hour by:
3/17/2018
Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
Satisfied Customers: 5,183
Experience: 30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner
Verified

Hello. Welcome to Just Answer. Please allow me to assist you. I agree with your initial thinking here. The Spark Plugs on this vehicle need to be changed out at 100,000 miles. After those miles have been reached, the electrode on the base of the spark plugs is too far away from the part that it sparks to. This causes poor combustion on a cold-engine (as in not ran for 8+ hours). Addiditionally, the air filter should be checked and replaced if you cannot see light thru it when helt up to the sun or a strong lightbulb. This car's engine is designed for one brand of spark plug: Nippondenso. Get them at a Toyota dealer; get the air filter there too. Auto parts store spark plugs are not good in this engine and will cause misfires. Finally, at 100,000 miles, you probably have a thin coating of normal carbon buildup on the faces of the intake and exhaust valves. A goof can of fuel injection cleaner would be a very beneficial expenditure. We recommend an excellent product distributed by the BG Company; it is called BG 44-k. Phenomonal stuff. Well worth the price. Cheap fuel injection cleaner like STP is not effective. Use the BG 44-k. The plugs, the filter and the fuel injection cleaner should fix you right up.

Ask Your Own Toyota Question

If you have any questions, please reply. Please do take a moment to confirm that you have received my input. Thanks!

Ask Your Own Toyota Question
Customer reply replied 1 month ago
Thank you for the info, I installed denso iridium long life plugs, and did find that the plug on cylinder 5 was leaking past the steel and porcelain. I also replaced all the boots and springs as well, I was kind of on the same track as you with the injection cleaning, I was thinking that there may be a little water in the fuel as well but in my experience never seen it cause a intermittent issue on start up but I’m not going to say it can’t happen. So if the cleaning of the valves doesn’t cure the problem what would you chase next? Do these motors have timing issues with the cam phasers?

These engines do not have Ford style cam phasers, they have cam position sensors. If you have a sensor issue, you would have a check engine light on. You also might have a fuel pressure issue. Inside the fuel pump there is a check valve that keeps residual fuel pressure at the injectors for the next start. If this check valve is leaking, you lose fuel pressure at the injectors on the initial start attempt. After the pump runs a few seconds, full fuel pressure is then at the injectors. Dirty/leaking fuel injectors will cause the same issue. The BG 44-K would be a good idea here.

Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
Satisfied Customers: 5,183
Experience: 30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner
Verified
Toyota Service and 87 other Toyota Specialists are ready to help you
Ask your own question now
Customer reply replied 1 month ago
Thank you for the help! I will give the bg a shot and see what happens.

Look for a distributor via their website: www.bgprod.com. Thanks for choosing Just Answer!

Ask Your Own Toyota Question
Was this answer helpful?
Ask Toyota Service Your Own Question
Toyota Service
Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
Satisfied Customers: 5,183
5,183 Satisfied Customers
Experience: 30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner

Toyota Service 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:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Auto Technician

1,001 satisfied customers

16 years of experience

Marty

Marty

ASE Certified Technician

180 satisfied customers

ASE & Bosch Master Tech. 30 years experience.

Amedee

Amedee

Toyota Technician

1,229 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Anthony

Anthony

ASE Certified Technician

401 satisfied customers

ASE Master Automobile Technician with over 20 years exp. in this field.

Richard

Richard

ASE Certified Technician

9 satisfied customers

Toyota tech. ASE Certified Technician

Skyvisions

Skyvisions

ASE Certified Technician

12,737 satisfied customers

Toyota Master Diagnostic

Genchi Genbutsu

Genchi Genbutsu

Toyota Master Technician

3,761 satisfied customers

Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine

< Previous | Next >

Related Toyota Questions
No power to fuel pump. No power to plug that connects to
No power to fuel pump JA: Is the power loss consistent, or does it fluctuate? Customer: No power to plug that connects to fuel pump JA: What is the model/year of your Toyota? Customer: 1998toyota camr… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I changed the spark plugs on my 2004 Toyota Sequoia but the
I changed the spark plugs on my 2004 Toyota Sequoia but the last plug won't catch and I can't screw it in. … read more
Mechanic01
Mechanic01
2,363 satisfied customers
Changing spark plugs and wires. I've never changed them.
I had it in the alternator shop and the guy says he didn't mess with them but one was popping up and down because they didn't put it all the way in. And I'm pretty sure they're not in order. That's what I'm looking at … read more
Chris (aka-Moose)
Chris (aka-Moose)
Auto Technician
Vocational, Technical or Trade School
1,001 satisfied customers
Just change my sparks plug and air filter car still keeps
Just change my sparks plug and air filter car still keeps cutting off … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
It want fire and fuel pump not coming on. New fuel pump.
im not getting not fire to the fuel pump or the distributor … read more
Toyota Service
Toyota Service
Toyota Expert
5,183 satisfied customers
The car cranks but wont start. No spark to spark plugs have
The car cranks but wont start. No spark to spark plugs have already replaced the distributor … read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 satisfied customers
I have oil in the #2 spark plug hole. haven't pulled the
I have oil in the #2 spark plug hole. haven't pulled the plug yet. researching what may be the issue … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
12,737 satisfied customers
Changed the fuel pump, filter and it still won't start. It's
Changed the fuel pump, filter and it still won't start … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,033 satisfied customers
Fuel pump not working and no spark ,cranks over but doesn't
Fuel pump not working and no spark ,cranks over but doesn't start.l checked the main engine relay and others they check out fine. … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
12,737 satisfied customers
Why after spark plug change out did I immediately get the
Why after spark plug change out did I immediately get the 1135 & 1155 sensor malfunction codes? Could I ave crimped a wire? It's on a 2002Avalon.… read more
Pete
Pete
Mechanic
Construction, Plant Fitter
130 satisfied customers
Put new fuel pump but just cranks but don't start. 2007
Put new fuel pump but just cranks but don't start JA: Have you checked the engine's fuel supply? And the spark plugs -- are they all working? Customer: Yes JA: What is the model/year of your Toyota? C… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,033 satisfied customers
I changed the air filter and now it idles low and stalls. No
I changed the air filter and now it idles low and stalls. … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
Won't start and I change the distributor the spark plug to
Won't start and I change the distributor the spark plug to spark plug wires and the fuel pump and it still won't start but it cranks … read more
Amedee
Amedee
Toyota Technician
Vocational, Technical or Trade Scho
1,229 satisfied customers
Its not turing over after I changed the spark plugs and
Its not turing over after I changed the spark plugs and valve cover gasket … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,160 satisfied customers
Cylinder 3 misfire. not the spark plug. Likely the coil.
cylinder 3 misfire. not the spark plug JA: How many miles are on the car? Is it a steady misfire? Or random? Customer: likely the coil JA: What is the model/year of your Toyota? Customer: 100, 000 ste… read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
12,737 satisfied customers
I have no spark. 1999. Corolla. I have tried the spark plug
I have no spark JA: What is the model/year of your Toyota? Customer: 1999 JA: Are you fixing your vehicle yourself? What have you tried so far? Customer: Corolla JA: Anything else you want the mechani… read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 satisfied customers
The check engine comes on with the air filter in place. But
the check engine comes on with the air filter in place. But when I remove the air filter the check engine light comes on? Why ? … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
Vsc and engine came on together after I has the air filter
vsc and engine came on together after I has the air filter replace,they left small air hose off.Put hose back on and reset codes, engine light went out,but vsc came back on. They also change gear shaf… read more
Toyota Service
Toyota Service
Toyota Expert
5,183 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