Mercury

Mercury Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Mercury
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: 2,052
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 1 month ago
no
Customer reply replied 1 month ago
just changed fuel filter
Customer reply replied 1 month 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 1 month 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 1 month 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 1 month ago
I also installed a new fuel filter

looks like your fuel pump is bad

Ask Your Own Mercury Question
Customer reply replied 1 month 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 1 month 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: 2,052
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 1 month 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 1 month 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 1 month 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 1 month 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 1 month 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 1 month 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 1 month ago
Could it also be the egr valve .
Customer reply replied 30 days 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 29 days ago
I did check for vacuum leaks by using brake cleaner sprey it had no effect.
Ask Mechanic01 Your Own Question
Mechanic01
Mechanic01
Mechanic01, ASE Certified Technician
Category: Mercury
Satisfied Customers: 2,052
2,052 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
I am in the process of taking out the intake manifold on a
I am in the process of taking out the intake manifold on a 1997 Ford Escort and noticed there is a vacuum hose connected to the throttle body that was not connected to anything. I also noticed the egr… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
My wifes 2004 Sable started yesterday, all the dash lights
Hi. My wifes 2004 Sable started yesterday, all the dash lights came on and the Low Oil Pressure warning came on. Did not make any noises or anything out of the ordinary. Checked the oil and it was ful… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
1997 villager code p0325 and p0400/fix it-shoot it-grandson
1997 villager code p0325 and p0400/fix it-shoot it-grandson already says will not be caught dead in minivan, monies tight..granny… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
My car shuts off whenever i stop. 1995 mercury sable. I just
i just put a new fuel pump in everything was fine till today … read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
It started to jerk every once in a while. I thought it was
Second opinion] It started to jerk every once in a while. I thought it was water in the gas tank but after adding the fluid to take care of [possible water it has continued.… read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
1,990 satisfied customers
I have a 1997 Ford Escort and noticed radiator was leaking
I have a 1997 Ford Escort and noticed radiator was leaking antifreeze. I pinpointed it to some connection bolted into bottom right of radiator next to lower hose. It looks green coreded. I tried to ti… read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
I have a 2003 Grand Marquis......What fuse number is for the
I have a 2003 Grand Marquis......What fuse number is ***** the Wind Sheild Wippers? … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
It started to jerk every once in a while. I thought it was
It started to jerk every once in a while. I thought it was water in the gas tank but after adding the fluid to take care of [possible water it has continued. … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
I found a broken part on the end of a hose that goes to the
i found a broken part on the end of a hose that goes to the evaporative canister (drivers side) its has dirt in it and where its connects is broken and dirty … read more
Don - Mo Lurch
Don - Mo Lurch
Mecury Mechanic
Vocational, Technical or Trade Scho
254 satisfied customers
Have an 07 expedition that i got some 20" oem rims for but
have an 07 expedition that i got some 20" oem rims for but the sensors are gone. will any aftermarket valve stem sensor work as long as it is 315mhz.… read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
1,990 satisfied customers
02 mercury mountaineer4.6 stalls intermittently at idle
02 mercury mountaineer4.6 stalls intermittently at idle surges under acceleration, also intermittent replaced maf, fuel filter,egr valve. Plugs and coils are good. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,633 satisfied customers
Wont start because of antitheft system. All that is
Yes, all that is perfectly fine, brand new battery. … read more
rpmdiag
rpmdiag
High school
7,328 satisfied customers
I have a 2001 grand marques and my fuel injectors are not
Ok I have a 2001 grand marques and my fuel injectors are not posting … read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
My car motor dies when I put transmission in gear? Fluid is
my car motor dies when I put transmission in gear? … read more
Mechanic01
Mechanic01
ASE Certified Technician
2,052 satisfied customers
These issues might be connected not quite sure: 1) my
These issues might be connected not quite sure: 1) my autolamp option doesn't seem to work they stay on longer than 10min 2) car off, no key in the ignition, head lamps off ... when i open the door a … read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
PROBLEMS water out of exhaust water not circulating but
PROBLEMS water out of exhaust water not circulating but hoses next to engine is hot and swollen resovoir cold… read more
HDGENE
HDGENE
Master Technician/Lead Technician
Associate Degree
2,835 satisfied customers
After an oil chane on 91 grand merc. I drove it 10 miles
Second opinion] after an oil chane on 91 grand merc. I drove it 10 miles came home noticed oil every wherr the guy at shop left 2 gaskets on instead of 1.. got it removed added more oil. started shaki… read more
indy-tech
indy-tech
Shop owner, technician
Vocational, Technical or Trade Scho
11 satisfied customers
Got oil change the guy left 1 gasket on my motor. all the
got oil change the guy left 1 gasket on my motor. all the oil ran out and I drove it. 10 miles then had the gasket removed once I noticed the put filter back on. replace oil sensor as well,, got a spa… read more
Eric
Eric
Retired
N/A
14,436 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