Skip the auto shop - Our mechanics make house calls

Q: My car reduced speed and increase at the same time even on the motion

asked by on

My car works very slow even when am on speed it reduce and increase at the same time pls what will I do because the price of the pump injection of toyota avensis verso is very expensive pls

Hi and thanks for your question. With your engine becomes jerky at highway speeds and is trying to climb up in speed but slow down at the same time, then you will need to check the EGR (Engine Gas Recirculation on the engine. The EGR takes old gasses that are burnt and puts them into the engine to reduce pinging and extra heat on heavy acceleration. The EGR can be plugged up and needs attention. I recommend removing the EGR valve and cleaning it. Then put it back on and retest your vehicle. If you have the same problem, then the EGR valve is stuck and needs replaced. I recommend seeking out a professional to diagnose the loss of power and guide with repairs.

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
  • Home
  • Questions
  • My car reduced speed and increase at the same time even on the motion

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: RPM goes up and down

The very first thing to do when you experience power loss or surging issues, or interesting gauge readings, is have your vehicle scanned for diagnostic troubleshooting codes. Your car can set these codes and not always illuminate the Check Engine...

Q: Engine check light, rough idle, loss of power.

Hello. If your filter is over oiled and the oil got onto the hot wire of the air flow sensor, then that can cause it to burn out. A scan tool could be used to check the reading of the...

Q: Van wont strat after sitting overnight. What could be the problem?

Obviously, there is a fault in either the ignition system, the fuel system, or in the air induction system. If you are truly detecting the odor of gasoline, you might try holding the accelerator pedal firmly to the floor while...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...