Skip the auto shop - Our mechanics make house calls

Q: Hesitation when shifting gear and clanking noise and lack of power during acceleration

asked by on

Purchased car 4 or 5 mths ago took it in after it sat for a month because of the hesitation and clanking they said it was without fluid they put 5 liters of transmission oil 4 of motor oil changed a filter tightened a bolt and the car became drivable 2 days later car wouldn't start replaced the starter kept using car the more I use the car the louder it gets it drives fine sometimes sometimes not when it doesn't it can hardly pick up speed when it does finally pick up speed its fine I smell something burning check engine light and check engine oil soon lights come on and off 2 different mechanics worked on my car single mom on disability need help can i fix this

A: Hi there. It would appear there is a combin...

Hi there. It would appear there is a combination of problems happening with your vehicle. First, the transmission fluid and engine oil leak(s) need to be addressed. The fluid loss may account for the burning smell. The Check Engine Light on leads me to believe the ECM (engine control module)/computer has recognized the drivability (lack of power) concern.

Accessing the computer for codes may help direct the diagnoses. There are many possibilities for a lack of power, low fuel pressure, restricted exhaust, a faulty throttle position sensor, mass airflow sensor, etc.

Assuming, there is the change engine oil soon light, may be due to the light was not reset at the time of service. The noise you are hearing could be any number of things while driving. I recommend having your vehicle’s lack of power issue and other concerns diagnosed and repaired by a certified technician, such as one from YourMechanic.

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: it consumes fuel alot

Hi there. Your vehicle should average about 25 miles per gallon, which equates to about 10 km per liter of fuel. If it is using as much fuel as you say then you more than likely have a bad sensor...

Q: I have been experiencing a lack of power at acceleration that does gradually increase. Is it my fuel filter?

Hello. There are cases where a dirty fuel filter can cause engine performance issues, if it is dirty to the point of obstructing flow. If it has not been changed, I would recommend changing it as it could possibly be...

Q: Windows have bad wind noise problem

Road noise can be very distracting while driving. Fortunately, Chevrolet is aware of this problem and has issued a Technical Services Bulletin (TSB) addressing the wind noise concerns. I highly recommend making an appointment with your local authorized Chevrolet dealership...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...