Question about 1992 Mercury Grand Marquis

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How To Adjust Idle For 1992 Mercury Grand Marquis

Idle is running low and need to know if it can be manually adjusted?

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  • Anonymous Mar 19, 2014

    Need a new starter and want to order online to have by the weekend to install. Weather is too bad right now to get under there to check. Need to know so I order the right part.

  • Anonymous Mar 26, 2014

    My 88 grand marquis want idle but will crank and run when you push the gas

  • Anonymous Mar 31, 2014

    97 grand marqui started idling high all the time checked tps ok could it be air bypassssensore



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There should be a screw on the throttle body, if there is not replace throttle position sensor or the idle air control motor.

Posted on Sep 04, 2008


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How to adjust rocker arm on a 1997 Mercury Grand Marquis

the bolt in the middle of it is not an adjustment its just torqued down tight .
the oil in the lifter is the auto adjustment . if its tapping then the issue is the lifter is bad or stuck. you have to remove the head to take it out . if you do . then do them all. if you cam is worn out it will have marks an rounded as will the lifter bottom.

May 03, 2015 | 1997 Mercury Grand Marquis

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1992 grand marquis check engine light comes on when driving. Garage used diagnose machine but came up with no code. Don't know what to do. Sometimes the oil light will appear as well, then car stutters at...

But the garage knows what to do

Don't need codes to work on finding

Did they road test it
Did they component test it

What have you done for the last 30 years--nothing !

Aug 05, 2014 | 1992 Mercury Grand Marquis

1 Answer

2001 mercury grand marquis idle is low after a dead battery

use a code reader to reset the CPU as battery changes sometimes corrupt the program

Dec 04, 2013 | 2001 Mercury Grand Marquis

1 Answer

2004 merc grand marquis. how to adjust headlights, replace turn s

ther is a plastic guard with 3 locking caps that need to be turned clockwise a quarter turn to remove. remove from the front. you will then have be able to see and have access to the lights and adjustment screws

May 26, 2010 | 2004 Mercury Grand Marquis

1 Answer


For the 1992 Mercury Grand Marquis 4.6L SOHC V8:

Firing Order:

O<--Coil packs-->O


Let me know if this helped or if you have additional information or questions. Feel Free to contact me!

May 04, 2010 | 1992 Mercury Grand Marquis

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