Quick Answer: Can I Change My Serpentine Belt Myself?

What happens if serpentine belt is put on wrong?

In some instances it may be possible to install a serpentine belt the wrong way.

If this happens, one or more pulleys will rotate in the WRONG direction, affecting the operation of the alternator, water pump, A/C compressor or power steering pump.

This can cause major problems..

Who can replace a serpentine belt?

A professional mechanic will normally charge between $75 and $120 in labor to remove the old belt and replace it with a new one. If you’re thinking about doing this work yourself, make sure you understand the process. You don’t want to drive around with an incorrectly installed serpentine belt.

How long does a serpentine belt usually last?

60,000 to 100,000 milesSerpentine belts are built to last—much longer than before because of advancements in rubber technology. Under ideal conditions, a belt should stick with you for an average of 60,000 to 100,000 miles. Pretty impressive. However, some belts are manually tensioned and may need to be adjusted.

Why do serpentine belts break?

The most serious failure is when the serpentine belt breaks completely. This is usually the result of a belt in poor condition, or a problem with one of the accessory components being driven by the belt. A failed bearing in a pulley being driven by the serpentine belt will also cause the belt to break.

Can a bad serpentine belt cause check engine light?

If an accessory drive belt actually broke, there may eventually be a check engine light. Specifically, codes related to high engine temperature or low system voltage. On some vehicles this would be due to the fact that the belt runs the water pump and alternator. … Fixing them should turn out the check engine light.

How do I know if my serpentine belt is worn out?

If you suspect your serpentine belt is failing, watch out for the following symptoms:Squealing noise from the front of the vehicle. If you notice a squealing noise coming from the front of your vehicle, it could be from the serpentine belt. … Power steering and AC not working. … Engine overheating. … Cracks and wear on the belt.

Do serpentine belts have a direction?

What does matter, however, is that a used auxiliary belt is always fitted to run in the original direction. So it’s a good idea to draw an arrow on the belt before removing it. If you put the belt back on in the opposite direction, the ribs end up in different pulley grooves than the ones they’ve adapted to over time.

How much does it cost to replace a serpentine belt?

A typical serpentine belt start at around $25 and goes up to $75 at most. If you know some car repair basics, you could change the belt yourself, and it may save you paying labor charges somewhere between $75 and $120. All together, you’re looking at around $100 to $195 to replace your serpentine belt.

What happens if serpentine belt is too loose?

If the belt is too tight, it will cause excessive side loads and overheat the bearings. This in turn causes noise, decreased output and even the seizing of the alternator. If the belt is too loose, it will cause the alternator to slip. This slipping can cause the alternator and the battery to work harder.

Can I drive with a bad serpentine belt?

Under no circumstances can you drive a vehicle without a serpentine belt because the serpentine belt serves the important function of delivering antifreeze to important parts of the engine. The serpentine belt drives the water pump, and without it, there is insufficient coolant flow to maintain the engine temperature.

Will a new serpentine belt improve performance?

The new belt does not slip therefore everything is turning and generating at full capacity, hence the improvement you see. Not really. All of your accessories(power steering, air-conditioning, etc.)

How long can you drive without a serpentine belt?

around 70-90 minutesOnce it reads “normal” it only takes a short time before it gets too hot. The battery on the other hand, will happily run the car and accessories on average around 70-90 minutes without the alternator, provided you don’t have headlights or anything high-drain on.