Question about 1997 Mercury Grand Marquis

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1997 grand marquis wont restart when cold

Problem started last winter, if i start car to let it warm up will stall when i put in drive and not restart for 20 minutes. no codes will turn over but if i let it sit for 20 minutes it starts right up. not the fuel pump ran fine all year since last winter now its cold again if i take right off and let it get hot its fine but if i shut it off before it gets hot it wont restart till it gets cold again???

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Change air filter and fuel filter clean fuel injectors.faulty coolant temperature sensor will cause cold start problems.

Posted on Jan 05, 2013

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Check the battery like this:
Turn on the headlights, then try to start the car.
If the headlights do not dim or go out, then the battery is likely ok.
Check that the battery cable plus post, goes to the starter, Minus post to a good ground, like the engine.
If wiring is ok, then look at the starter solenoid for a good connection, and proper voltage at the starter.
Problem is most likely the Solenoid's bendix gear or starting relay, Have someone bang on the starter while you try to start the car. This usually works by dislodging the bendix gear..
Hope this helps.

Posted on Apr 04, 2015

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Posted on Jan 02, 2017

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SOURCE: Car will turn over good, but not start. car is getting fuel.

In the trunk there is an emergency fuel pump cutoff switch. Make sure it's turned off before you take it anywhere and spend money.

Posted on Feb 20, 2009

  • 120 Answers

SOURCE: 98 Grand Marquis intermittent no start/stalling

crank sencer

Posted on Feb 18, 2009

warlock61
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SOURCE: Car not idling adn stalling when it is cold

sounds like the idle control vale is sticking when it is cold. It is located on the throttlebody right at the air inlet

Posted on Mar 01, 2009

  • 101 Answers

SOURCE: Fuel issue on 2001 Grand Marquis

most cars have an oil pressure sensor that is tied into the fuel system that will shut off fuel pump if oil pressure is low. Ford is famous for having a yellow fuel pump cut off switch that activates in a collision - you need to locate and check this 1st

Posted on Oct 18, 2009

Testimonial: "Oil pressure during cranking? This come off the sender switch? How to bypass to "test" if engine will start? "

  • 1 Answer

SOURCE: I have a 96 Mercury

I have a 96 Grand Marquis with a similar problem. Also on the highway it would just conk out on me suddenly, almost felt like I was hitting the brakes, then it would pick up again. Eventually got to the point where it was stalling out on the highway and at red lights. One day it wouldn't start. Mechanic said the fuel filter was clogged solid. It has run well but every once in awhile still stalls out on me. From talking with other Grand Marquis owners and the mechanic the Mass Air Flow sensor may be to blame. He wanted to charge me $400 but I found the part online for about $85.

Posted on Apr 19, 2011

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2002 mercury grand marquis wont start when engine at normal temperature must wait 15-20 minutes


I have exactly the same problem started last winter, ran fine all summer then as soon as it got below freezing again if I start it and run for 15 20 minutes wont restart I have to let it sit for 20 minutes or so and then it will start again. no codes and just turns over without starting. cant be fuel pump like i said had this problem last winter then ran fine all spring summer and fall! Anybody got the answer for this one??

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