Mercury

Mercury repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

Car has bad misfire run rough jerks at higher speeds. just…

Car has bad misfire...

Car has bad misfire run rough jerks at higher speeds. just installed used trans. coils plugs cam and crank sensors, tbs. the car is a1996 grand marquis 150.000miles

Mechanic's Assistant: Does the vehicle stall at low speeds? Does it sputter?

Does not stall, but feels like it wants to. yes ti does sputter

Mechanic's Assistant: What year is your Grand Marquis?

1996

Mechanic's Assistant: Are you fixing your Grand Marquis yourself? What have you tried so far?

Yes, changed trans, used one, new coils, plugs, cam and crank sensors, tbs,

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Jerks at different speeds

Show More
Show Less
Ask Your Own Mercury Question
Answered in 27 minutes by:
1/12/2018
Mechanic01
Mechanic01, ASE Certified Technician
Category: Mercury
Satisfied Customers: 2,655
Experience: Owner at Baltic investments
Verified

Hello my name is ***** ***** welcome to just answers! I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required. If I don’t answer right away or quickly in conversation I am helping another customer or have stepped out for a moment and will respond as soon as I can. Ok lets get started!

Have you actually checked spark at each coil and fuel pressure yet?

Ask Your Own Mercury Question
Customer reply replied 4 months ago
no
Customer reply replied 4 months ago
just changed fuel filter
Customer reply replied 4 months ago
the coils are new

I would start with that first, you want to see 35-45 psi, with the pressure , and I know the coils are new I see bad new parts almost everyday and check the pugs as well they could have been dropped in transport and cracked but not able to see with the eye, I also recommend motorcraft plugs for that others dont do well

Ask Your Own Mercury Question
Customer reply replied 4 months ago
if everything checks out whats next? while I have you

you have me for as long as you need, then next I would check for vacuum leaks and clean the maf,

Ask Your Own Mercury Question
Customer reply replied 4 months ago
I tested all spark plugs for spark from coil everything worked fine. checked the furl pressure regulator it seems to be working, but the pressure from the fuel pump will not go above 30lb. It holds it at 30lb but will not go above no matter how much gas I give it. I CHECKED AII FUSES AND RELAYS all good.
Customer reply replied 4 months ago
I also installed a new fuel filter

looks like your fuel pump is bad

Ask Your Own Mercury Question
Customer reply replied 4 months ago
Do think this will solve all problems? Have tricks to make this job a little less fun

I know it will solve your fuel pressure problem, it should clear up alot of the others if not everything, and this job is just a pain and you will have to pull the tank to get to the pump, best advice I can say is make sure its near empty before you pull it,

Ask Your Own Mercury Question
Customer reply replied 4 months ago
Thanks for the help. That's it.

Sure thing!

Please let me know if you have any additional questions or if you want to discuss this further. And please take a moment and kindly click a positive rating (preferably 5 Star/Excellent) to credit for the time & effort put by me in answering your automotive question, and this is the only way I will be credited for my service to you. Rating me now does not close your question and if you have follow-up or additional questions you can ask them after the rating too! Also if you would like further assistance in the future you can favorite me as well.
Assuring you the best services!
Kind Regards!
Shawn ASE Technician

Mechanic01
Mechanic01, ASE Certified Technician
Category: Mercury
Satisfied Customers: 2,655
Experience: Owner at Baltic investments
Verified
Mechanic01 and 87 other Mercury Specialists are ready to help you
Ask your own question now
Customer reply replied 4 months ago
I changed the fuel pump and it still runs rough and act like it missing, what do I do next?

did you check fuel pressure with the new pump?

Ask Your Own Mercury Question
Customer reply replied 4 months ago
no, but it does run better the n it did, would a bad relay cause this?

It could, it would be super hot if it was bad, I would start with the fuel pressure first and check your voltage at the fuel pump relay

Ask Your Own Mercury Question
Customer reply replied 4 months ago
I checked the voltage at the relay both battery side and key side, they both had the proper voltage. And when I CHECKED THE FUEL PRESSURE IT WAS AT 35LB. bUT THERE WAS NO CHANGE IN TH WAY THE CAR RUNS
Customer reply replied 4 months ago
iT RAN GREAT FOR A FEW MILES BEFORE IT STARTED TO ACTUP

you could have a few clogged injectors I would check the spry pattern on those next

Ask Your Own Mercury Question
Customer reply replied 4 months ago
I unbolted the fuel rail to get the injectors to test the sprey but when I put pressure in rail the injector pop out 3of them only on the drivers side. So I put new orings topmand bottom it did not help. How do I test the sprey if I cant get pressure. Could the rail be bad

you have to make something to hold them in

Ask Your Own Mercury Question
Customer reply replied 4 months ago
I removed them from the car and cleaned them and checked the sprey. I also added new wires, but it still does the same thing.It does run better but still jerks from1st and 2nd. At faster speed it jerk also. Could there be a intake manafold casket leak?
Customer reply replied 4 months ago
Could it also be the egr valve .
Customer reply replied 4 months ago
I had guy at autozone read the codes for me and he said I had three missfires, that is why I changed the wires, which did not help. The plugs are good. Could it be the pcm?
Customer reply replied 4 months ago
I did check for vacuum leaks by using brake cleaner sprey it had no effect.
Was this answer helpful?
Ask Mechanic01 Your Own Question
Mechanic01
Mechanic01
Mechanic01, ASE Certified Technician
Category: Mercury
Satisfied Customers: 2,655
2,655 Satisfied Customers
Experience: Owner at Baltic investments

Mechanic01 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:

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 DUSA

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.

MollyUSA

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.

BRNew 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!!!!

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

< Previous | Next >

Meet the Experts:

Chris (aka- Moose)

Chris (aka- Moose)

Mercury Technician

1,990 satisfied customers

16 years experience with Mercury

John Mc

John Mc

Mercury Technician

403 satisfied customers

19 years Ford Lincoln Mercury experience

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

330 satisfied customers

Have owned a repair shop for 25 yrs.

Ron Z.

Ron Z.

- Mercury Tech -

288 satisfied customers

18+yrs experience. State Inspector and Mercury Diagnostics

Chuck

Chuck

ASE Certified Technician

287 satisfied customers

33 Years experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

scottz136

scottz136

Mercury Technician

260 satisfied customers

senior master lincoln mercury tech.

Don - Mo Lurch

Don - Mo Lurch

Mecury Mechanic

254 satisfied customers

Ford Cert., Heavy Line Mech, Mobile Electronics. Sales, Installation & Repair for 30 years

< Previous | Next >

Related Mercury Questions
Our daughter said the vehicle stalled on her and that the
Our daughter said the vehicle stalled on her and that the speedometer stopped working. Autozone read a P0500 code "Vehicle Speed Sensor A". … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,253 satisfied customers
I took my just used acquired Mercury Mariner to ford
I took my just used acquired Mercury Mariner to ford dealership failing it fpr VA state safety inspection due to red brake light on dash. It also has an abs light and Regen Brakes disabled. Need HCU r… read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
1,990 satisfied customers
Check engine light on. dealer says gas vapor sensor? 400 to
check engine light on. dealer says gas vapor sensor? 400 to fix part and labor … read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
Window for second row of seats on the right, while driving
Window for second row of seats on the right, while driving the car slides down about about an inch. The window switch doesn't move the window up or down. It sounds like it is trying to but to no avail… read more
Don - Mo Lurch
Don - Mo Lurch
Mecury Mechanic
Vocational, Technical or Trade Scho
254 satisfied customers
I have a 2000 mercury mountaineer 8 cyl 5.0 and i have a
Hello and my name is ***** ***** I have a 2000 mercury mountaineer 8 cyl 5.0 and i have a check engine light and i scanned the car and it gave me p0402 code this will be the EGR valve i change it twic… read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
A warning light that indicates "the overdrive is off" comes
A warning light that indicates "the overdrive is off" comes on when I haven't disconnected the overdrive.***@******.*** … read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
Car slips when going in reverse when not warmed up. Does not
Car slips when going in reverse when not warmed up. Does not slip as much when car is warmed up. Car goes in to all fordward gers with no problem … read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
Why is ther oil on spark plug threads on my 2010 mercury
why is ther oil on spark plug threads on my 2010 mercury milan? … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
My Mercury won't start. It when I turn the key there is a
My Mercury won't start. It when I turn the key there is a clicking noise and then my windshield wipers turn on, but my car won't start. The only time it will start if I have the battery charger hooked… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,253 satisfied customers
2008 Mercury Mariner has a single chirp sound. It happens
2008 Mercury Mariner has a single chirp sound. It happens every 11 seconds while driving at any speed. AC on or Off. Outside passenger compartment. Front of vehicle. It sounds like driver's side. Very… read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
1,990 satisfied customers
My signal lights stopped working. Both front and back signal
Both front and back signal (turn) lights. Grand Marquis 2003 … read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
1,990 satisfied customers
Myhusband pulled the stock stereo now it wont start. Im told
myhusband pulled the stock stereo now it wont start … read more
Don - Mo Lurch
Don - Mo Lurch
Mecury Mechanic
Vocational, Technical or Trade Scho
254 satisfied customers
The horn will not deactivate, starter selenoid will not
The horn will not deactivate, starter selenoid will not click. Tried several alarm deactivate techniques with no results. May need to have a phone conversation to let you know what I have tried … read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
1,990 satisfied customers
I have a 2001 Mercury Grand Marquis. It was brought into my
I have a 2001 Mercury Grand Marquis. It was brought into my shop with an intermittent stall. I checked for power at the eec relay and checked the pcm for power and grounds. All appear to be fine. All … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I just bought a used 2008 Mercury mariner Hybrid which has
I just bought a used 2008 Mercury mariner Hybrid which has abs and a brake light on dash. Can you advise on a qualified shop in the Alexandria, VA (2008) mechanic shop to check the car?… read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
1,990 satisfied customers
I have bought the 2002 Mercury Mountaineer with 173000 miles
i have bought the 2002 Mercury Mountaineer with 173000 miles from my granddaughter. It seems that the control for moving the driver seat forward and backward doesn't do that. I hear sound under the se… read more
HDGENE
HDGENE
Master Technician/Lead Technician
Associate Degree
2,835 satisfied customers
Will there be a charge to get an answer? 2010 Ford Mariner.
The car will not start with nothing plugged into aux or electronics turned on in car. car will start when jumped. New battery and new alternator did not fix the problem.… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,253 satisfied customers
My A/C randomly switches from vent to defrost to floor. I
My A/C randomly switches from vent to defrost to floor. … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 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