Question about 1998 Mercury Mountaineer

1 Answer

1998 engine identification. 4.0?

I had posted on here about an overheating problem. So as I began the work, I noticed something different that was in the shop manual versus what the engine showed. For one thing, the thermostate housing was shown being bolted into the engine block. Now on our engine, it is in a plastic container, held in by 3 screws that resemble wood screws.

This is a 4.0 engine, as the cover over the engine says it is. I also noticed that the intake manifold was made of plastic, I think, but was split into 2 parts that go down the middle of the engine, again a discrepancy from the shop manual. Is there a chance that this is either an older or a newer engine, or is the book just not showing you everything? That thermostat housing kind of threw me seeing it like that. I looked for some identification marks on the engine but I found none.

Is there a difference between an explorer engine, and a mountaineer engine, as far as physical appearance?

The manual shows that there was a metal plate, where as the mountaineer had a flat plastic shroud that had the 4.0 stamped in to it. This shroud covers the top of the engine. The oil fill is on the other side of the motor also. The picture they show of the 4.0 in the service manual, does not look like the motor that we have in our 1998 mountaineer, The manual is a Chilton Manual, and covers 1991 to 1999. Thanks.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 308 Answers

Explorer engine is designed for road running its ability is to run fast on cemented or galvanize.road .the mountaineer is designed to run on heavy and muddy roads . And there design

Posted on Jul 27, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Firing order for 1998 toyoto rav4

Plugs from left to right:


Coil Connections from front of engine bay to rear firewall of engine bay

3 - Rear coil pack, rear post
2 - Rear coil pack, front post

4 - Front coil pack, rear post
1 - Front coil pack, front post

Firing Order 1-3-4-2

Aug 19, 2016 | 1998 Toyota RAV4

1 Answer

Bmw wont start

Hi can you check the engine oil please and get back to me thanks.

Jun 06, 2017 | 1996 BMW 528i

1 Answer

Baleno esteem 1998

1st check all fuse in cab and engine bay , 3 fuses run EFI.
your guessing, got lots of cash, guessing has no upper limits.
why not do the 3 tests, for all cars that dont start.?
first off , before working on any car , know what engine you have.
teh Esteem in USA has 1.6L or 1.8L, and are radically different.
and radical different spark and EFI systems.

ill just name the basics
1: does it crank fast (over 250rpm is spec crank speed)
2: does it have spark at all 4 spark plugs
3: no spark , does it have spark at the coil (ops its hidden in the 1.6L under the dizzy cap. so we need to make a test jumper to do that.
on 1.8 it has 4 coils, called cops.
are all 4 COPS dead, (means Coil Over Plugs)
4: if 1.6L is the timing belt fresh every 60K, oops it snapped or
slipped, compression is 0 or 90psi not 150PSI time 4.
4a: if 1.8, the cam chain can snap over 300k ignored?

ill stop here, as what engine is real important
i treat all DOHC cam engines with kid gloves (or bend valves)
the 1.8L is DOHC (early 2.0L it is)

post country car was sold (be the first in 8000 posts to do that)
post engine, type or displacment,
engine oil filler rear, is 1.6L front is 1.8L)
or open hood, look up and under side of hood,see the USA sticker
see the vacuum map, bingo, the engine type is in plain text.

if engine was 1.8L and you ignored the screaming chain
do post that fact now... kid gloves rules, (pray its still ok and do tests
to assure no further damage by you) ask.

Dec 15, 2013 | 2003 Suzuki XL-7

1 Answer

Engine overheats, loses power, starts back up but dies when put in gear

I hate to tell you this but... If it overheated you probably have at the very least blown a head gasket. The best thing to do is run a compression check and that will tell all. Hope that helps

Apr 19, 2017 | 1988 Jeep Wrangler

1 Answer

Where is the map senor at on a 1998 caliver 2.2

The Manifold Absolute Pressure (MAP) sensor for a 1998 Chevrolet Cavalier 2.2L engine (VIN code 4) is mounted on the side of the throttle body assembly. It is marked "A" in the diagram below.

HINT: For further identification, GM almost always uses a GREEN colored connector for the electrical connection at the MAP sensor.


Dec 01, 2011 | 1998 Chevrolet Cavalier

1 Answer

Ford escort V.I.N.?

vehicle identification number. look on drivers side,windsheild on dash under windsheild wiper,will have to look at it from outside the car through windsheild. another place located is drivers side door jam. where the door closes at latch assembly. also located on your vehicle registration and insurance info. or your car title. there are 4 different solutions i've posted to you. thank you for choosing

Jan 22, 2011 | 1998 Ford Escort

1 Answer

2002 dodge ram truck 5.9 engine

check if the fan works first,simple run a wire from the battery post positive to the positve wire on the fan if it starts then it works,next step clip the wires on the fan and conect the ground on good metal and the positive on ur fuse box,but not on any fuse,only on the fuse that turns on with the ignition,.

Sep 14, 2008 | 2000 Dodge Ram Maxi

Not finding what you are looking for?
1998 Mercury Mountaineer Logo

111 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts


Level 3 Expert

77499 Answers


Level 3 Expert

5626 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides