Mercury

Mercury repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

Have a 2000 mercury grand marquis. Runs fine for a while…

Customer Question
Have a 2000 mercury...

Have a 2000 mercury grand marquis. Runs fine for a while then stalls. When trying to restart, the traction light temp light flashes and the pats light blinks rapidly. Let it sit for 24 hours or so and everything is good again.

Mechanic's Assistant: Is the check engine light on? Does the car stall at idle or when driving?

It depends. Today i drove for 50 miles no incident then traction light flashes and temp light flashes then it stalls. Try and restart and the pats ligjt flashes rapidly. , crank no start

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

It had a slight hesitat back a few weeks ago.changed cops and plugs. While doing it we found that the valve cover gasket was leaking ( oil on cop boots. Thats the drivers side. After that the problem started

Submitted: 4 months ago.Category: Mercury
Show More
Show Less
Ask Your Own Mercury Question
Answered in 18 hours by:
12/5/2017
Mercury Mechanic: Chris (aka- Moose), Mercury Technician replied 4 months ago
Chris (aka- Moose)
Chris (aka- Moose), Mercury Technician
Category: Mercury
Satisfied Customers: 51,157
Experience: 16 years experience with Mercury
Verified

Welcome, I'm Chris (aka-Moose).

  • WORK TIME, I am here 7 days a week but not all hours of the day, do not worry I will respond.
  • FEES, I am a user of the website like you, not an employee. Any fee or account questions need to be addressed to the website.
  • PHONE CALLS, I will never offer nor ask you to pay more for a call, calls and memberships are pushed by the website.
  • UPLOADED LINKS, if I upload dropbox links, without the phone app use the box on the top right for direct download.
  • RATING ANSWERS, please let me know what you need from me so you are pleased with my answer.

Do you get the same results from your spare key?

Have you scanned it to see which PATS codes are stored?

Ask Your Own Mercury Question
Customer reply replied 4 months ago
Tried the spare key with the same results. I suspect that this is some kind of intermittent electrical issue, probably a ground or ref voltage issue most likely caused by me during the drivers side valve cover gasket replacment. The reason i think this is it is tight in there and i had to remove the brake booster and remove power steering reservoir to make room to move the harmess out of the way and even then the harness was tight and i might have strained it. Plus there are too many things happening. It rides fime for a whole night. I literally drove it around for four hours on sunday so see if it would mess up. In town and on highway. After towing the car home yesterday i started doing a visual inspection of the wirimg harness, Fuses relays etc. I noticed that the fuel pump relay was hot to the touch. I changed it just for good measure. New one is cool as a cucumber. Then i say in car and started it. It idled like a champ.
Im a pretty big guy 350 lbs. when i got up out of the car to go back under hood it stalled. I repeated the action, same thing. Stalled again. Reached in and started it thorought the window. Went under hood and manipulated wiggled and pulled on every wire and connecter i could reach. Grabbed each fender snd shook the car no stall. Oped the door and stood on the door frame and it stalled. Did it 3 more times it stalled. I know i haven mentioned this before but never since ive been having this trouble has the pcm thrown a code. Not sure where to go from here.
Mercury Mechanic: Chris (aka- Moose), Mercury Technician replied 4 months ago

The car stalling when standing on the open door frame, I do not believe I can figure this one out not in person. I will opt out.

Ask Your Own Mercury Question
Mercury Mechanic: Michael Solis,
 replied 4 months ago
Michael Solis
Category: Mercury
Satisfied Customers: 447
Experience: Lead Tech at Solis Auto Repair
Verified

Hello, my name is***** will be helping you out! I have over thirteen years of experience in the automotive industry for numerous different makes & models. I enjoy doing what I do, it is my life.

Let me know if you still need assistance :)

Ask Your Own Mercury Question
Customer reply replied 4 months ago
far ibe paid 31 dollars to get quit on. Waited days only to get this response in the middle of the night. Not paying anymore money.At least not yet. Habe you read my conversation? Anything to offer?
Mercury Mechanic: Michael Solis,
 replied 4 months ago

I apologize for waking you so late :( I definitely have some ideas but we will wait until the morning. Let me know when your ready and we can respond back and forth. Get in touch with me tomorrow and we will continue this, get you some rest, good night :).

Ask Your Own Mercury Question
Customer reply replied 4 months ago
Im not sleeping, i am at work. Ask your questions. Lets hear your ideas
Mercury Mechanic: Michael Solis,
 replied 4 months ago

I think you are on the right track, I do believe it is possibly the volt reference as being the problem since the power train system is what is being affected, but I believe it is the PCM itself glitching out. I first want to eliminate the possibility as to being a PCM issue.

Next time the stall & other modules whack out on you, try to put it on the cheap scan tool and see if the PCM gives you codes, or says communication failure. ABS, PATS should be fine and are probably throwing communication error codes because it can not speak to the PCM.

I have seen similar issues almost identical. Found a bad computer to be the issue. I was able to diagnose it just seeing it could not communicate. We can always see the DLC connector and read the circuit there.

Other signs as to possible PCM issue is if KOEO shows no check engine light illumination.

I monitored the TPS 5v reference, and it was still there. Even though the PCM was glitching out and bad.

Ask Your Own Mercury Question
Mercury Mechanic: Michael Solis,
 replied 4 months ago

On a ford around your year model, I had a pcm circuitry actually releasing ground to the vehicle and stalling when you move the car around, the repair on that one was adding electrical tape around the PCM.

Ask Your Own Mercury Question
Mercury Mechanic: Michael Solis,
 replied 4 months ago

If you truly think it is a wiring issue around the area you worked at, then we can do some continuity checks on the ones you believe are the issue pin by pin at the same time moving the car around.

Ask Your Own Mercury Question
Customer reply replied 4 months ago
OK.
First, I had it on a software scan tool while driving, it shows no codes when it stalls. I do not loose connectivity with the car. KOEO the CEL is on and turns off when the engine starts. As you said it could be a damaged pcm but why so intermittent? Drive for hours and the next day no love. When it stalls the temp light flashes it starts running real rough. sometimes i can keep it going by giving some gas for a bit but the pats light starts flashing, then the car stalls, then crank but no start. When i get the crank but no start condition the pats light blinks rapidly.
I had it running in the driveway and i got under the hood and checked every connector, yanked on every strain point i could see. When the car started stalling as i got in or out of the drivers seat, it made me think that perhaps a piece of the harness going behind the engine or under the car might be the problem. The two things that really keep burning into my brain are the flashing pats light and that stalling from the movement in that par of the car. The pats light makes ask what route the circuitry and antenna take? It did not always stall from me getting in and out but i just think that the fault is in a perfect position to be affected by this movement. It was getting late and raining so i didnt get underneath yet.
I did buy a shop wiring diagram so that is my next route. I won't be able to get under the car again till sunday But that is my plan of attack
Customer reply replied 4 months ago
Just one more thing, I dont have this car very long so ii dont know its history but, i did notice that the fuel pressure regulator is new. the egr operator (vacuum driven) is new, and the alternator is new.
The coil packs were not all the same make. I attribute that to the oil leak
Mercury Mechanic: Michael Solis,
 replied 4 months ago

ok and what type of scan tool do you have? Can it retrieve abs/pats and all other modules codes? Ill follow up with you tomorrow, its getting late for me.

Ask Your Own Mercury Question
Customer reply replied 4 months ago
OBD AutoDoctor. No No ABS or PATS codes. I have to buy a better scan tool but budget tight cant seem to find a happy medium. TTY tomorrow. Sleep well.
Mercury Mechanic: Michael Solis,
 replied 4 months ago

Thank you for the kind words :). I did sleep well. How do you want to approach this matter? Can we check if the TPS has 5 volts to see if it is a volt reference issue?

Ask Your Own Mercury Question
Customer reply replied 4 months ago
Ill be home later this evening (EDT). I am guessing from the time of your response last night that you are on the west coast? I will probably be home around 7 my time and I can grab a DVOM and we can do some testing if you like.
Mercury Mechanic: Michael Solis,
 replied 4 months ago
Sounds good I am central
Ask Your Own Mercury Question
Was this answer helpful?
Ask Michael Solis Your Own Question
Michael Solis
Michael Solis
Michael Solis
Category: Mercury
Satisfied Customers: 447
447 Satisfied Customers
Experience: Lead Tech at Solis Auto Repair

Michael Solis 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

51,157 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 have 99 mercury sable and i got a code p1518 and just
Hi i have 99 mercury sable and i got a code p1518 and just wondering how to fix … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,060 satisfied customers
Drive side power seat just clicks going forward and or
drive side power seat just clicks going forward and or backwards … read more
Anthony P.
Anthony P.
high school
64 satisfied customers
The power locks and trunk release have stopped working. I
the power locks and trunk release have stopped working. I have replaced the fuse under the dash and the one under the hood. the power seats still work. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2003 Mercury Sable, does the ABS module need to be
2003 Mercury Sable, does the ABS module need to be programmed after replacing with a used module?… read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
2002 Mercury mountaineer keeps intermittently blowing #41
2002 Mercury mountaineer keeps intermittently blowing #41 fuse , checked all 4 o2 sensors that were replaced years ago all wires are good , there is no check engine light so now I am stumped and need … read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
51,157 satisfied customers
I have a 98 mercury mystique. I was driving home and it died
I have a 98 mercury mystique. I was driving home and it died suddenly with no sputtering however it is not seized. It now turns over has spark but does not fire. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
2000 meor sable turns over want crank has thrift light
2000 meor sable turns over want crank has thrift light flashing no rpm … read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
51,157 satisfied customers
My temperature gauge and gas gauge are not working at the
My temperature gauge and gas gauge are not working at the same time … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
It's stuck in awd. 2003 mountaineer awd v6 4.0. We replaced
We replaced the front differential, control arms, front axle, now we need to figure out why it's binding when turning … read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
Brought my Mercury Marquis to a Ford dealership. They held
Brought my Mercury Marquis to a Ford dealership. They held the car for two days and couldn't find anything wrong. Got stuck in bumper to bumper traffic. The car kept revving or racing on and off the w… read more
Mechanic01
Mechanic01
2,388 satisfied customers
No cool air. outside temp 55F. how much r134a does system
no cool air. outside temp 55F. how much r134a does system hold with rear a/c? what are high and low pressures … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Ive got 1998 200 xr fuel injected wngine, it is weeping gas
Ive got 1998 200 xr fuel injected wngine, it is weeping gas from a jet on fuel block, is there an instruction an repair for that avail., part etc … read more
eurotec
eurotec
Vice President / Manager
Associate Degree
11 satisfied customers
I HAVE A 2006 MERCURY MARQUIS-MY SECURITY KEY WAS
I HAVE A 2006 MERCURY MARQUIS-MY SECURITY KEY WAS STOLEN-FORD DEALERSHIP SAID ONLY WAY TO GET AKEY TO CRANK MY CAR IS CALL A LOCKSMITH- IS THIS SO? … read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
51,157 satisfied customers
I need to change the temperature sensor and I need to know
I need to change the temperature sensor and I need to know if its the 1 closest to the radiator or the 1 closest to the firewall in a 97 mercury tracer … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
AWD light comes on when suddenly braking...like for when a
AWD light comes on when suddenly braking...like for when a fool pulls out in front of me … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Call won't start when jump is battery totally shot? Sable
Call won't start when jump is battery totally shot? … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Car jerks randomly and i checked the code it said small evap
Car jerks randomly and i checked the code it said small evap leak, could this cause the car to jerk? … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
I just hqd a transmission rebuilt 6 months ago now its gone
I just hqd a transmission rebuilt 6 months ago now its gone bad again … read more
Steve W
Steve W
Line Technician
Vocational, Technical or Trade Scho
1,968 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