2001 Elantra

How to change spark plugs..My car is running heavy or rough (55000
miles). I don't recall changling plugs.. Could it be due to some other
reason!

 

Plug wires.

Old_Timer

 

My mechanic who has been around for a while says ~ 2 years and you can start
having troubles with spark plug leads.
My experiences with Hyundais and Subarus bear that out. Mind you my 37 year
old VW still using original leads.
Hard to beat copper sometimes.
John

 

Put those 37 year old copper wires on a new engine with electronic ignition
and you can probably light Yankee Stadium at night with the arcing.

 

Anyone know where I can get a shop manual for a '08 Elantra, dealer wants
$100.00

 

Your car is about due for 60K maintenance, have a major
tune up done then.

Tom

 

A "tune up" on these cars basically consists of replacing the plugs and
wires. There are no manual adjustments to the ignition or fuel systems,
unless perhaps one of the sensors has shifted.

At 60K, it will be due for a timing belt.

 

Plugs are due at 60k. Could be the wires as mentioned by another poster,
or a host of other reasons. Due to your description (running
heavy/rough), about the only thing I'm certain of is that there's been
some change in how your engine runs-- I have little idea what that may be.


Also, if you need to ask how to change the spark plugs in this engine, I
must question whether you should be doing this job without someone with
experience present guiding you. My suspicion is that you've done very
little auto repair, and in that case, it's good to have some sort of
mentor to get you started. Stripping the threads in your engine is
neither an easy nor inexpensive problem to repair.

That said, you can access the plugs through four holes in the top of the
valve cover. They unscrew from the cylinder head.

 

If you want the hard-cover version, it's probably dealer only.

On the other hand, if internet is okay, you can access for free by
registering for an account at www.hmaservice.com.

 

Probably plugs and or wires, but to be safe, check your trans fluid if auto.
The fittings crack where the lines go into the trans cooler in the radiator,
fluid leaks, and can cause slipping which might mimic rough engine in the
early stages. My mechanic has repaired 4 such problems, including mine.
Sadly, I ended up with new trans.