Engine problems and repair are regular factors of everyday life. You should have some basic ideas about these engine problems and repair techniques because there is no telling when you might face engine complexities. It is not like you always have a repairman just around the corner.

Common Engine Problems and Repair Techniques

Take a look at the following problems you might face with your engine and how you can fix them:

1.) Engine Misfiring And Surging

You will know your engine has this problem when it speeds up slightly by itself or it misses or bucks.

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Reasons and Repair:

  • In case of a carburetor, the choke is possibly not working properly. Make sure the choke placed is opening completely.
  • Check and repair, if necessary, the cooling system because the engine is possibly running too hot.
  • Use a fuel pressure gauge to check engine fuel pressure. You might need to replace your fuel pressure regulator. However, it is not a DIY job.
  • Adjust your ignition timing in case it is set wrong.
  • In case of ignition system complexities, check and replace spark plugs, distributor caps, ignition wires, and rotor.
  • Check if the fuel filter is clogged; if it is, then you need to replace it.

2.)  Excessive Oil Consumption

Excessive oil consumption for different reasons is second on the engine problems and repair list. This is a problem mainly faced by old engines.

Reasons and Repair:

  • If no smoke comes out of your exhaust even though your engine is consuming more oil than normal, you might have to check and replace PCV valve, compression, valve seals, and gaskets.
  • If your engine consumes more oil and your coolant appears somewhat browning and foamy, check head gasket, cylinder head and oil cooler and replace if necessary.
  • If you find oil puddles under your vehicle, it means you have a leaking problem. If that is the case, then you might have to check and replace PCV valve or the system itself, gaskets and seals and tightness of oil filter.
  • When your engine consumes more oil and smoke comes out of the exhaust, it means your engine is burning more oil than necessary. This means you have to check PCV valve, compression, piston rings, and valve seals.

3.)  Engine Hesitation

When you step on the gas pedal and the engine takes a few seconds to respond, it means you have a hesitating engine. You will realize this problem when your engine is hot or cold or when your engine is running low on fuel.

Reasons and Repair:

  • Check if the air filter is too dirty and replace if necessary.
  • Check and replace spark plugs.
  • Inspect ignition wire condition.
  • Check if water is mixed with your fuel.
  • Replace accelerator pump or carburetor if you have a faulty carburetor.
  • Replace your catalytic converter if it is clogged.

4.)  Smoke In Exhaust

Different colors of smokes mean different engine problems. Take a look below.

Reasons and Repair:

  • If gray smokes with bluish tint come out of the exhaust, that means you might need to replace piston rings and valve seals and guides.
  • If white smoke or water vapor comes out of the exhaust, you have to check vacuum modulator, replace cylinder head gaskets, resurface and/or replace cylinder heads and replace engine block. White smokes are normal if it is cold outside.
  • If black smoke comes out of the exhaust, you have to repair or replace the carburetor choke, check the functionality of fuel injectors, replace air filter and check rotor and distributor cap.

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These are the common engine problems and repair methods. A few good tips will also help you to keep your engine running for longer. For instance, take engine block heater. A block heater will help your engine warm up faster in cold weather. Its installation might require replacing a core plug of your engine.