Q: My 2004 hyundai santa fe jerks and shutters under heavy acceleration/ under load. How can I fix it?

asked by on

Ever sense I bought my 2004 hyundai santa fe on craigslist it has been shuttering and jerking under heavy acceleration/ heavy load. During normal driving it runs fine. I had it diagnosed by a mechanic and they said it was either the motor mounts or the u joint. Sense then we have replaced the motor mounts and it fixed the problem for about a day, but now its as bad as ever. Do you think it is the u joint or something else. Please help.

My car has 151000 miles.
My car has an automatic transmission.

Drive line joints are easily checked but, based on your description, the operating condition of the engine itself might be a issue. Poor or uneven acceleration can be caused by faults in the throttle position sensor, mass airflow sensor, vacuum leaks, a clogged fuel filter, defective EGR valve or control circuit, and worn out spark plugs and wires. A mechanic would simply investigate these possibilities sequentially and also check to see if any diagnostic trouble codes can be downloaded from the PCM. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an engine hesitation diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 2004 hyundai santa fe jerks and shutters under heavy acceleration/ under load. How can I fix it?

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: Q: Cooling Fan

Hi, thanks for writing in. This is most likely related to a faulty coolant fan switch. This is a relay switch that comes on when the temperature of the coolant system reaches a certain level. When this switch is faulty,...

Q: radiator was full but reservoir was empty why?

The first thing to check is for any leaks in the system and refill the overflow bottle with 50/50 coolant and then see if system gets low after driving a couple days again. If it keeps getting low then have...

Q: Strange grinding sound from front end

You may have bent something on that side, notably a suspension part, HOWEVER the fact that you have the noise with the car stationary with the brakes applied is NOT consistent with damage to a suspension part. The car would...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...