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

A: Hi and thanks for your question. With your ...

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

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!

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: Engine hesitation and blue smoke

The blue smoke coming out of the exhaust is an indication that the motor is burning excessive oil. The Mazda 3 engines are known for this. When the valve seals become worn this can cause oil to seep into the...

Q: My car has a lack of power - 2001 Lincoln LS

This may be a sign of a dirty or faulty mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Q: Injector clogged metal shavings

Hello there, having faults within the first 5000 miles is not uncommon. This is the time where any faults from the factory will show themselves. It is entirely possible that through the manufacturing process, a piece of metal worn off...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...