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Whats the spark plug gap number how to replace?

Tiny
JUNITOSKY
  • MEMBER
  • 1997 MERCURY MOUNTAINEER
  • 123,345 MILES
I just need the number of the spark plug gap for a mercury mountaineer its an 8 cylinder
Saturday, April 21st, 2012 AT 10:19 PM

21 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Here is the gap and a guide on how to get the job done.

.052-.056 gap

https://www.2carpros.com/articles/how-to-change-spark-plugs

Please let us know what happens.

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Saturday, April 21st, 2012 AT 10:22 PM
Tiny
JUNITOSKY
  • MEMBER
  • 2 POSTS
Thanks a lot but which of the 2 measurement that u gave me is it.052 or.056 wich of the two is it
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Saturday, April 21st, 2012 AT 10:27 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Gap it at.052 and get it over with
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Saturday, April 21st, 2012 AT 10:37 PM
Tiny
ZWAW JI GWAS CROW
  • MEMBER
  • 1 POST
Which is the best spark plug gap to use to increase fuel mileage for 1997 mercury mountaineer.052 or.056?
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Tuesday, April 25th, 2017 AT 5:30 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
That would depend on what the car calls for becasue it is very important when it comes to ignition timing.

Which is.052

Please let us know what happens.

Cheers, Ken
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Saturday, April 29th, 2017 AT 12:00 PM
Tiny
SMITH7052
  • MEMBER
  • 1 POST
  • 1997 MERCURY MOUNTAINEER
  • V8
  • AWD
  • AUTOMATIC
  • 150,000 MILES
Engine Mechanical problem
1997 Mercury Mountaineer V8 All Wheel Drive Automatic 150000 miles

the rear 2 sparkplugs have a sheild around them and one of them has been damaged so a socket want fit on the olug. Does anyone know how to get the sheilds off. Can't tell if they are pressed weilded or how they are atached.
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Saturday, April 29th, 2017 AT 12:01 PM (Merged)
Tiny
RICKMAR
  • MECHANIC
  • 170 POSTS
The damaged shield is a heat shield. Here are the instructions of how to remove it. Once you have the shield off, It would be a good time to straighten out the damage as much as you can...WEAR GLOVES!!

Remove the wheel well splash shield.


https://www.2carpros.com/forum/automotive_pictures/433905_Splash_Shield_1.gif



Remove the exhaust manifold heat shield.


https://www.2carpros.com/forum/automotive_pictures/433905_Heat_Shield_1.gif



I HOPE THAT HELPED YOU.
Rick
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Saturday, April 29th, 2017 AT 12:01 PM (Merged)
Tiny
ETHAN621
  • MEMBER
  • 1 POST
  • 1997 MERCURY MOUNTAINEER
Shakes or Wobbles problem
1997 Mercury Mountaineer V8 Four Wheel Drive Automatic

could old spark plug wires cause this
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Saturday, April 29th, 2017 AT 12:01 PM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Wobbles?

Does this symptom happen at idle while in park?
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Saturday, April 29th, 2017 AT 12:01 PM (Merged)
Tiny
KEMPS
  • MEMBER
  • 7 POSTS
  • 2004 MERCURY MOUNTAINEER
  • 124,000 MILES
All the spark plugs went in without antisieze but im on the last one and it wont thread in and go on.
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Saturday, April 29th, 2017 AT 12:01 PM (Merged)
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Did old 1 come out fine? I've had the issue where threads were bad/damaged on NEW plug.
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Saturday, April 29th, 2017 AT 12:01 PM (Merged)
Tiny
KEMPS
  • MEMBER
  • 7 POSTS
Yes it came out fine and how can u tell if threads are bad, they look fine.
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
It's tricky and dont take bein off much to cause problem. You could try that same plug in another hole? Also tr old plug in that hole it's not going into to be sure it's not damaged now too.
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
KEMPS
  • MEMBER
  • 7 POSTS
  • 2004 MERCURY MOUNTAINEER
  • 124,000 MILES
I got all the spark plugs on but one and when I checked them and pulled the other ones off they smelt like fuel. My last plug wont go on wont thread have checked them for debri and it isnt damaged or cracked or broke.
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,724 POSTS
IT may be stripped
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
TRY A DIFFERENT PLUG----EVEN PULL ONE OF THE OTHERS, AND TRY

EVEN NEW STUFF CAN BE MANUFACTURED WRONG

FRIDAY, 10 MINUTES BEFORE THE MACHINE OPERATOR CLOCKED OUT FOR HIS WILD WEEKEND!

I'M HOPING THIS IS THE CASE, AND YOU ARE NOT STRIPPED OUT!

THE MEDIC
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
MMPMARTIN
  • MEMBER
  • 1 POST
  • 2004 MERCURY MOUNTAINEER
Engine Mechanical problem
2004 Mercury Mountaineer V8 All Wheel Drive Automatic

Where are the spark plugs located under the hood?
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
2004 Mercury Truck Mountaineer AWD V8-4.6L SOHC VIN W

Hope this helps.


https://www.2carpros.com/forum/automotive_pictures/12900_sp_2.jpg

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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
KEMPS
  • MEMBER
  • 7 POSTS
  • 2004 MERCURY MOUNTAINEER
  • 124,000 MILES
Have already gapped the plugs and all of them are in but one and I have cleaned debri ect. But it wont down at all.
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)
Tiny
KEMPS
  • MEMBER
  • 7 POSTS
Changed the spark plugs and drove to store had no problemS, then I when I went to start it the smorning it wouldnt start, just turns over, what could be causing that?
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Saturday, April 29th, 2017 AT 12:02 PM (Merged)

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