How JustAnswer Works:

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

Ask Matt Carey Your Own Question

Matt Carey
Matt Carey, Mecury Mechanic
Category: Mercury
Satisfied Customers: 258
Experience:  6yrs experience, and access to factory service information
Type Your Mercury Question Here...
Matt Carey is online now
A new question is answered every 9 seconds

My 1999 Mercury Villager is havig hesitation problems with

Resolved Question:

My 1999 Mercury Villager is havig hesitation problems with lurching slightly. I have had the problem since about 2006 just occasionally about the same time of the year(summer) once or twice and that is all. Initially, I attributed it to bad gas.
Then about 2 weeks the problem started more often. When I take my foot from the gas momentarily, the problem goes away. However, this morning at a stop light in the rain, the car started running rough and feeling like it was going to stall. It never did and ran like this for a few blocks then stopped. this afternoon, it started again briefly and then stopped.
I called my mechanic and he said I need to bring it in when it is doing that but it stops before I can get there. Any ideas?
Submitted: 3 years ago.
Category: Mercury
Expert:  Matt Carey replied 3 years ago.
Chat Conversation Started
Matt Carey :

Hi this is MATT CAREY. One of the most common problems of hesitation can be the MAF ( Mass Air Flow Sensor). It will most times not even set the check engine light. The MAF is best diagnosed with a scanner that can read fuel trim data. You can remove the MAF and see if the tiny hot wires are dirty, then clean them with brake clean spray to see if that helps. If you do, be careful because they are very delicate.

Matt Carey :

Of course this is just one scenario. Could be something else, but worth looking into. Do you have a Check Engine light on, any codes? How many miles? And when is the last time you have had a tune-up? Thanks, MATT

Customer:

Thanks Matt, I will check out the MAF or have it checked. I have a check engine light on but have had it checked out and the only thing that comes up is a heat sensor that has been broken for years. The spark plugs were checked just recently and they were okay. The car has about 95,000 miles on it. I did not specifically have the air filter checked and assumed that it was part of the diagnostics but perhaps I should have it checked. A few years back I had trouble with the accelerator plate and had to have it cleaned. Could that be a problem again? The symptoms were similar but not the same.

Matt Carey :

A dirty throttle plate can cause problems, usually it causes stalling when coming to a stop. Not a hesistation. As far a engine light, do you mean a O2 sensor heater code? if so, probably not related. But you never now if you have a new code in addition to that one.

Matt Carey :

Check the MAF, and Throttle plate, can't hurt. let me know. MATT

Customer:

Okay, thanks. When I hit the accept button, will I still be able to follow up and let you know if the problem was anything you recommended looking at?

Matt Carey :

I'll be here to help you either way. You can accept now or wait, whichever you are more comfortable with.

Matt Carey :

Also try this. Put your Emergency brake on, and with the van running in drive, put your left foot on the brake and then give it gas with other foot. We call it a power brake test, basically as you rev the motor, you are putting a load on it. And you are looking to see if it misses, or cutts out. Just don't burn up your trans.. Do it for a few seconds at a time.

Matt Carey :

Let me know what it does. MATT

Customer:

Okay, thanks I will check that out too.

Matt Carey :

I'm here when your ready. Has it been running rough more , (like you said it did in the rain)? Just wondering if the problem seems to be getting worse/ or more often? MATT

Customer:

I checked out the emergency brake as you told me but that was not the problem. I took it to my mechanic and gave your info. They kept it all day and finally found that it was the transmission sensor. I probably don't have the exact name of the part but am sure you know what I am talking about. The cost to repair it is about $800.00. Does that sound about right?

Matt Carey :

There are a handfull of different sensors on the transmission. See if you can find out the exact name, and I can try to give you an idea of price. MATT

Customer:

It is the transmission control module and the speed sensor (the odometer has not been working correctly) for an estimate of $781.00 including labor

Matt Carey :

Yes that sounds reasonable. At least you will have a warranty. MATT

Customer:

Okay, Matt

Customer:

Thanks for your help

Matt Carey, Mecury Mechanic
Category: Mercury
Satisfied Customers: 258
Experience: 6yrs experience, and access to factory service information
Matt Carey and other Mercury Specialists are ready to help you

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:

 
 
 
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
< Last | Next >
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
  • Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me. Molly USA
  • I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service. Jason V. Kirkland, WA
  • I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there. BR New Jersey
  • 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!!!! Alex Los 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. GP Hesperia, CA
 
 
 

Meet The Experts:

 
 
 
  • Ron

    ASE Certified Technician

    Satisfied Customers:

    1601
    ASE Certs and Ford Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    1601
    ASE Certs and Ford Certs
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)

    Mercury Technician

    Satisfied Customers:

    1399
    16 years experience with Mercury
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Mercury Technician

    Satisfied Customers:

    403
    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar

    Chuck

    ASE Certified Technician

    Satisfied Customers:

    287
    33 Years experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/scottz136/2008-12-09_220350_js640_p1010013.jpg scottz136's Avatar

    scottz136

    Mercury Technician

    Satisfied Customers:

    260
    senior master lincoln mercury tech.
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    257
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Mercury Tech -

    Satisfied Customers:

    197
    18+yrs experience. State Inspector and Mercury Diagnostics