Q: 2004 Hyundai Sonata jerks while accelerating from stop.
2004 Hyundai Sonata jerks while accelerating from stop. Jerks every 500 rpm starting from 0 up to 2000. Doesn't happen when i put it in slap shift on 2nd gear and higher. What is wrong?"
My car has 111500 miles.
My car has an automatic transmission.
Recommended Services
| Distributor Replacement | $243.26 - $1072.84 | Get a Quote |
Hello, thank you for writing in. There may be several components you will have to inspect before you find the issue. You will want to start with the distributor cap. Make sure it is clean and dry inside. Jerking when accelerating is often related to moisture accumulating in the distributor cap. It causes malfunctions with the spark plugs and can cause misfiring. A vacuum leak can also cause similar symptoms. This can be tested several ways, and if doing it from home you will want to find a method that matches the tools you have available. Further testing is needed.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
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
What others are asking
When should I replace the timing belt?
Thanks for asking! For your year, model, and engine size, the timing belt is scheduled to be serviced every 60,000 miles. Your timing belt is definitely due. This is a very important service and must be performed on a regular...
Tie rod loose
If one tie rod is loose, then more than one may be loose in the front end. The CV joint boot is most likely torn, causing the grease to leak. The loss of grease will cause the joint to go...
brake pedal goes to floor
When a wheel is not rolling free it can be due to a seized caliper (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-brake-caliper), binding brake pads (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-brake-pads), or fluid pressure that is not being released from the brake caliper. Since you have replaced the first two parts,...
Green AC oil coming out of the condensation line after recharge
The green fluid coming out of the drain tube is dye that was added to the refrigerant to locate leaks in the system. The failed component would be the evaporator. Please check this web site for more information and...
Fuel system, inertia relay, or pump will not start, never had problems in the past
Hello there, thank you for asking about your 2007 Ford Explorer. The first thing to do is to have the fuel pressure tested to see if the engine has pressure. Make sure the Theft Light is not on or flashing....
My car hesitate slightly during start up. What could be the problem?
This may be caused by many things as there are a number of systems at work when your car's engine first starts up. This may likely be an air/fuel flow issue since the car does in fact start. Typically, the...
Check engine light on and code P1791 showing when connected to scanner. 1997 Acura TL
Hello - the P1791 code indicates a problem with an internal speed sensor (or governor) within the transmission. This device provide RPM information from the transmission to the transmission controller - which determines when the transmission shifts up to the...
Frozen water in the reservoir instead of antifreeze
Hi there: Most of the time, when the coolant overflow reservoir freezes up due to water being put inside, it can cause cracking; since they are typically made of plastic. The best thing to do is to remove the bottom...
Car has a bad range sensor do the transmission need to be replace also
Hi there. If you're transmission is slipping out of reverse, this is typically an indicator of a bad sensor; but not the mechanical transmission. You might want to have a professional mechanic complete a diagnostic scan to download all error...
Related articles
The Best Used Cars to Buy for Occasional Drivers
Not Not everyone relies on their car on a daily basis. Maybe you aren’t the type that deals with a daily commute, and running from here to there constantly. If that’s the case, you may be looking for a car...
The Best Used Cars to Buy For Fuel Economy
Saving money on gas is an important factor to consider when buying a car. The Honda Civic, Toyota Prius, and Ford Fusion all have great fuel economy.
Hyundai Certified Pre-Owned (CPO) Car Program
If If you have been shopping for a used Hyundai vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on...
Browse other content
Maintenance
Cities