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I have a 1987 Mercury Grand Marquis that when we spray quick
I have a 1987 Mercury Grand Marquis that when we spray quick start in carb it will start but then will die. We have changed the fuel pump and it does come on and we do get fuel to injectors. What else… read more
roy
roy
Associate Degree
3 satisfied customers
I have a 97 grand marquis that sat for about 4 months with
I have a 97 grand marquis that sat for about 4 months with out me driving it. I put a new battery in as it was needed. when i went to start it the car tried to turn over fine but seemed like I wasnt g… read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
My car wont start and i noticed water spraying from the tail
My car wont start and i noticed water spraying from the tail pipe … read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
98 grand marquis. Sat and wouldnt start. I replaced
98 grand marquis. Sat for awhile and wouldnt start. I replaced the fuel pump,fuel filter, and fuel pressure sensor. Now I have pressure and fuel on the rail but still won't crank. It will fire for a m… read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
I have a 1990 Grand Marquis. I started the car Monday
I have a 1990 Grand Marquis. I started the car Monday morning and it started right up. It ran for about 2 minutes warning up but then it just stopped. It will crank but it will not start. All other el… read more
HDGENE
HDGENE
Master Technician/Lead Technician
Associate Degree
2,835 satisfied customers
Mercury Grand Marquis: Mom whacked library with 99 grand marquis
Mom whacked library with 99 grand marquis minor damage to driver side bumper,grill,&fender, but both airbags went off now car is dead can this be reset or bypassed so car can be started to get on trai… read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
Mercury Grand Marquis LS: 99 Grand Marquis - new alternator,
99 Grand Marquis - new alternator, new battery....alternator will not charge the battery, car runs when jumped off until we remove the positive jumper cable. As soon as removed, the car quits.… read more
Chris (aka- Moose)
Chris (aka- Moose)
Mercury Technician
Vocational, Technical or Trade School
2,029 satisfied customers
Mercury Grand Marquis LS: I have a 1985 Grand Marquis with
I have a 1985 Grand Marquis with 36K original miles. It was obviously, seldom-driven. The car has sat for many months and has been driven once, for eight miles, in Oct '13. Five gallons of fuel was in… read more
Fordanswerman
Fordanswerman
Ford Senior Master Technician retired
Associate Degree
2,912 satisfied customers
Mercury Grand Marquis: I need to replace the fuel filter on
I need to replace the fuel filter on my '99 Grand Marquis. I have the tank almost ready to come out, but need to disconnect the fuel pump electrical connection, which I can barely touch and can't see … read more
CTFordTech
CTFordTech
Auto Technician
Vocational, Technical or Trade Scho
4,460 satisfied customers
2002 GRAND..fuel psi WHILE RUNNING 25-30 NO INCREASE WITH LOAD.
2002 GRAND MARQUIS. 22K MILES MAY HAVE SAT A WHILE. FUEL PSI WHILE RUNNING 25-30 NO INCREASE WITH LOAD. HAVE SEEN LESS THAN 5PSI WITH KEY ON. DROVE 100 MILES WITH PREMIUM FUEL RAN GAS DOWN TO PREPARE … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
99 Grand Marquis: I changed fuel pump..now it wont start..loses power
I changed fuel pump in my 99 Grand Marquis and now it won't start. When I connect the plug, it loses power. Thanks for your time.… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
Grand Marquis: merc..new battery..wont keep the charge..get driven
My mom pssed away about 1 month ago and my dad is having a problem with her 2007 Merc Grand Marquis because it is always dead. We already got a new battery but it still won't keep the charge. FYI-It d… read more
Brad B
Brad B
Mechanic
Vocational, Technical or Trade Scho
997 satisfied customers
Merc..Fuel filter..pump out of tank and jumped + and - term
98 Merc Marq. Fuel filter was totally plugged and took pump out of tank and jumped + and - term. at pump its self but pump would not turn. changed fuel filter and Fuel pump. Car will not start but sma… read more
Brad
Brad
Lead Diagnostic Technician
Vocational, Technical or Trade Scho
2,019 satisfied customers
86 Mercury Grand Marquis: cranked..put new..new starter..stick
Hi I have an 86 Mercury Grand Marquis with 5.0 motor, car sat up about 2 years, got it running again out of neccessity. We filled the battery and charged it and found another problem after 2 years had… read more
Thomas
Thomas
Mechanic
High School or GED
1,053 satisfied customers
2002 Mercury Grand marquis: intermittent ignition problem
I have a 2002 Mercury Grand Marquis GS. For the past couple of months I have had an intermittent ignition problem. It turns over but does not start. An independent mechanic and a Ford dealer have done… read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
spark plugs, plug wires, distributor, fuel filter..radiator
I changed the spark plugs, plug wires, distributor, fuel filter, fuel pump relay, and transmission. It drove fine until I flushed the radiator. The water must have shorted the fuel pump relay which wa… read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
1985 Grand Marquis: 5.0 CFI, ac/at, ps/pw..emissions..injectors..relay
I have a 1985 Grand Marquis, 5.0 CFI, ac/at, ps/pw, CA emissions, that is not getting juice to the injectors. I've replaced the relay, and the ECM. The relay has 12 volts going in, and almost nothing … read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
8,789 satisfied customers
1989 Mercury: Fuel pump..runs well..restart..fuel filters changed
Fuel pump question --- I have a 1989 Mercury Grand Marque that runs well with 120,000+ miles. Recently within ten minutes of driving, hot or cold weather, the engine shuts down and I have to coast to … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
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Meet the Experts:

Chris (aka- Moose)

Chris (aka- Moose)

Mercury Technician

2,029 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

332 satisfied customers

Have owned a repair shop for 25 yrs.

Ron Z.

Ron Z.

- Mercury Tech -

291 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

258 satisfied customers

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

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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.

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