Open the hood of the Alero, and set the hood prop.
Remove
the cover from the top of the engine, using a ratchet and socket to remove the four mounting bolts. Pull the cover straight upward then remove it from your work area. The coil is mounted under the cover, and will come off with it.
How many spark plugs does a 2004 Alero have?
| Car | 2004 Oldsmobile AleroV6-3.4L | Service | Service typeSpark Plug Replacement | Estimate | Estimate$162.99 | Shop/Dealer Price | Shop/Dealer Price$188.99 – $243.94 |
|---|
Can I change my spark plugs myself?
Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the other two tasks, spark plugs are equally as important and require consistent monitoring.
How do you change a spark plug step by step?
- Safety First. Park your vehicle on a flat, dry surface and ensure the engine is cool. …
- Remove the Spark Plug Wire. …
- Remove the Coil On Plug (COP) …
- Unscrew the Spark Plug. …
- Put in the New Spark Plugs. …
- Re-install the Spark Plug Wires or Ignition Coils (COP) …
- Start Up the Engine.
Where are the spark plugs located on a 2000 Oldsmobile Alero?
Find the spark plugs in your Oldsmobile Alero. In most engines, such as the 2.2L model, the spark plugs are
right on top of the engine block
and are easily accessed. For a 2.4L engine, the spark plugs are underneath the black engine cover on top of the engine, which can be removed by unscrewing the support screws.
How do I know if my spark plugs need changing?
- Rattling, pinging or “knock”-like noises. When spark plugs begin to misfire, you may notice unusual noises from the force of the pistons and combustion not working properly. …
- Hard vehicle start. …
- Reduced performance. …
- Poor fuel economy.
How hard is it to change your spark plugs?
Changing spark plugs takes
about an hour
(for a four-cylinder engine) and will save you at least a hundred bucks in labor if you do it yourself. In most cases it’s a simple job that will help to maintain peak performance and the highest possible gas mileage.
How often should spark plugs be changed?
And as a general rule, we recommend replacing spark plugs
every 30,000 miles
, which falls in line with most manufacturers’ recommendations. You can check your owner’s manual or the manufacturer’s website for information specific to your make and model vehicle.
How much is it to change your spark plugs?
The average cost for a Spark Plug Replacement is
between $191 and $250
but can vary from car to car.
What order do you replace spark plugs?
- Safety First. Park your vehicle on a flat, dry surface and ensure the engine is cool. …
- Remove the Spark Plug Wire. …
- Remove the Coil On Plug (COP) …
- Unscrew the Spark Plug. …
- Put in the New Spark Plugs. …
- Re-install the Spark Plug Wires or Ignition Coils (COP) …
- Start Up the Engine.
What are signs your spark plugs are bad?
- Motor misfires.
- Engine knocking.
- Rough idling.
- Difficulty starting.
Does changing spark plugs improve performance?
The short answer is
Yes
, when you replace the spark plugs and wires can increase your vehicle’s performance. New spark plugs help keep your engine at its peak performance and efficiency levels. … Worn or dirty spark plugs require higher voltage to get a strong enough spark to start a vehicle.
What happens if I don’t change my spark plugs?
Spark plugs will depreciate over time, so various engine issues will arise if they are not replaced. When the spark plugs do not generate the adequate spark,
the combustion of the air/fuel mixture becomes incomplete
, leading to loss of engine power, and in the worst-case scenario, the engine will not run.
Should I replace ignition coils with spark plugs?
Should I replace ignition coils with spark plugs? Ignition coils and spark plugs work closely together. … But if you are simply replacing your spark plugs as part of routine maintenance service,
it is not necessary to replace your ignition coils at the same time unless there are signs that they are failing
.
Are spark plugs worth changing?
In general,
it’s best to replace spark plugs as part of preventative maintenance based on manufacturer’s specifications
. This can help save you from costly repairs, as driving with misfiring spark plugs could put undue stress on your car’s catalytic converter (the engine’s exhaust cleaner).
Why is it so expensive to replace spark plugs?
Since
replacing the plugs is no longer an annual service
, most vehicle manufacturers stopped making them accessible. Today, replacing the plugs may require removing the intake manifold and a lot of other work to reach them.
