Table of Contents
Why do my spark plugs have corrosion?
Dry fouling, or carbon fouling, is often caused by an overly rich condition, and the problem may lie with your air cleaner (clogged) or carburetor. Other possible causes could be low compression, vacuum leak, overly retarded timing, or improper spark plug heat range.
How many spark plugs does a Volvo S40 have?
Four Cylinder These are for first generation S40/V40 cars up to 2004. These cars have four cylinders and thus four spark plugs.
How many miles does a Volvo S40 last?
200,000 miles
That being said, with the proper care the average lifespan of a Volvo is typically 20 years with over 200,000 miles.
How long do coil over plugs last?
The ignition coil on your car is supposed to last around 100,000 miles or more. There are a number of factors that can lead to this part become damaged prematurely. Most of the newer cars on the market have a hard plastic cover that is designed to protect the coil from damage.
Is Volvo S40 a reliable car?
The Volvo S40 Reliability Rating is 3.5 out of 5.0, which ranks it 3rd out of 17 for luxury compact cars. The average annual repair cost is $693 which means it has average ownership costs. The severity of repairs is low while frequency of those issues is average, so major issues are uncommon for the S40.
How can you tell if a plug coil is bad?
If your car is experiencing any of the problems listed below, you may have a faulty ignition coil on your hands:
- Engine misfires.
- Rough idle.
- A decrease in car power, especially in acceleration.
- Poor fuel economy.
- Difficulty starting the engine.
- Check engine light is on.
- Exhaust backfiring.
- Increased hydrocarbon emissions.
At what mileage should you replace coil packs?
While ignition coils do not have a service interval, they do have a lifespan. There is no specific mileage or age to replace them. They should only be replaced when they are bad. If you notice any cracks on the plastic or epoxy, and of course misfires, then it is time to replace the ignition coils.