Question about 2004 Mercury Grand Marquis

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2004 grand marquis check engine light on and flashing od off

2004 grand marquis check engine light on and flashing overdrive off light

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: 1994 Mercury Grand Marquis Check Engine Light Code 332

its the tube going from the egr valve to your exhaust it have carbon build up and you either have to replace it or get a metal coat hanger and clean it out.

Posted on Sep 26, 2009

  • 22 Answers

SOURCE: Overdrive light is flashing on my 1996 Mercury

That usually means the transmission is in "LIMP" mode... Just to get you home or to a Service Center of your choice (one that does transmissions).... When it O/D blinks the car will drive sluggish... it stays in second gear and does not shift.... just so you can LIMP somewhere...... a good price to rebuild this transmission is about 1500 dollars.... Good Luck

Posted on Jul 13, 2010

SOURCE: 96 grand marquis rough idle, lossof power while

You work on Check Light issues first,so check
for codes & proceed from there.

Need some knowledge or a trouble chart,as codes
don't tell you what is wrong or what to replace

Posted on Jul 12, 2011

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2 Answers

2004 Ford Sportrac having problems with trans OD flashing on and off and sticking in gear?


When the Torque Converter Clutch (TCC) isn't engaging or locks in engagement the light flashes a warning...The TCC solenoid may stick due to dirty transmission fluid...If the Check Engine Light
(CEL) is not lit have your transmission fluid changed...If it is lit the code is probably pointing at a defective TCC, Computer (PCM) or the clutch itself... you can take the vehicle to an auto parts store and have them read and define the trouble code for free...saailer

Feb 19, 2015 | 2004 Ford Explorer Sport Trac

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2004 Mercury Grand Marquis The door adjar light


It is probably a defective or out od adjustment door pillar switch.

Oct 04, 2014 | 2004 Mercury Grand Marquis

1 Answer

1999 jeep grand cherokee overdrive does not work


OD , id OD'd? LOL !!!!
huh?

please do explain, dont work.
it never engages
or hunts.
or lamp flashes (some early cars , flash it for failure)

The PCM on most 99 cars controls the engine and tranny all in one box. and can do many things, wrong, to cause OD to fail
even Limphome, mode. (btw tranny has its own limp mode too)
why not scan the PCM and pull out the DTCs for tranny
P07xx or?
that be first.

the PCM will in fact skip OD (top gear) if it thinks it will overload
the engine or tranny is malfing. (slipping and other checks)
the newer the car , the more of that protection is going on....
saving car from driver actions.

Dec 26, 2013 | 2003 Jeep Grand Cherokee

1 Answer

My o/d indicator started flashing that it was off, I tried to reset but it failed whys


Is the check engine light on too ?
Usually when the OD light flashes it means something has failed in the transmission and overdrive is not useable.

Jul 26, 2013 | 2004 Ford Explorer Sport Trac

1 Answer

Engine misfiring, warning lights are coming in and out.digital dash trac control, overdrive off light,temp gauge shots up momentarily, and check engine light. car running rough. 2000 Grand Marquis 95k


Misfire condition on cylinder 5 (P0305) and cylinder 8 (P0308). There is a good explanation of it here :
http://troubleshootmyvehicle.com/ford/4.6L-5.4L/how-to-diagnose-misfire-codes-1

Mar 20, 2013 | 2000 Mercury Grand Marquis

1 Answer

Why is a green light flashing ( OD OFF) on the lower right side of the dash ? This is where the orange air bag light comes on when starting the car.


A flashing OD light is telling you the overdrive is off and there may be a problem with the engine or transmission.
The computer turns the overdrive off to try to prevent damage to both.

Dec 18, 2012 | 1994 Mercury Cougar

1 Answer

2000 mercury grand marquis sloppy shift


If your transmission is not shifting properly, then you probably also have an"OD OFF" light (if equipped) and/or a "CHECK ENGINE " light that is illuminated or blinking. If this is the case, then you need to scan your onboard computer network to retrieve fault codes that will lead you to the cause of the problem.

Jun 14, 2012 | 2000 Mercury Grand Marquis

2 Answers

In my Grand Marquis 1999 while i am driving suddenly o/d off light is flashing what is the problem, is that possible to be transmission oil ? thanks


Not the trans fluid

Oil only cools,lubes & applies pressure to
the clutch drums & bands

You change trans & power steering fluid
every 3 years or 30,000 miles on ALL Vehicles

Changing trans fluid DOES NOT FIX ANYTHING

You have to have the OD light issue diagnosed

May 23, 2011 | 2004 Mercury Grand Marquis

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