Skip the auto shop - Our mechanics make house calls

Q: i have a Mitsubishi io 4g93 it only accelerates up to 1500 rpm and the engine is shaking what could be the problem?

asked by on

I have a Mitsubishi io 4g93 it accelerates only up to 1500 rpm what could be the problem

My car has 200000 miles.
My car has an automatic transmission.

Hello. Thank you for writing in. The vehicle is at an age where it needs to updated and maintained. The issue will hopefully be solved by performing some regular maintenance. Start by performing an oil and oil filter change. When doing this, make sure the oil is not contaminated with any other fluids or metal pieces. Sometimes the metal will look like glitter. This would indicate the engine is having major issues. Secondly, update the spark plug wires and install new spark plugs. Resistance due to contaminants and corrosion will make the spark plugs and ignition system less effective over time. With fresh oil and spark plugs, replace the fuel filter and consider if you have ever replaced the fuel pump. It has worked hard at this point, and you may want to consider it if the maintenance does not fix the issue. You may want to consider using a fuel additive to help clean the injectors and fuel system. Lastly check the air filter, and clean it or replace it if needed. With updates to the oil, fuel, spark, and air systems, the car should run better. If not you will want to resort to further diagnosis. For more help updating the vehicle, contact our service department.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • i have a Mitsubishi io 4g93 it only accelerates up to 1500 rpm and the engine is shaking what could be the problem?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: No spark after head gasket replaced and timing and water pump fixed

Check all the ignition system primary circuit electrical connections to the distributor and test the coil and the distributor. Be sure all electrical connections were restored and are secure. It is possible that an electrical connector was just left disconnected,...

Q: Car stuck in Park

I would check and see if the brake lights are working. If the car will not shift out of Park and the brake lights do not work, this usually means that the brake interlock switch is faulty, and needs to...

Q: Car lost power and stalled

Hello there. It's kind of odd that your 2011 Mazda2 is exhibiting this issue with so few miles on it. However, many different faults can cause the vehicle to stall. The most common would be the fuel pump, fuel filter,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.