Q: Battery and Jerking

asked by on February 11, 2017

Just had the car in for services a week ago and they stated we needed a new timing belt. Now we have a problem with the car with it's battery light on for a day and then the next day the car started Jerking while driving both in forward and reverse. This is at lower speeds have not tried to drive any higher than 30 miles an hour. And I should add the car was taken in for it's scheduled maintenance, oil change and check. Thank you

My car has 105000 miles.
My car has an automatic transmission.

Alternator Replacement $166.62 - $1297.14 Get a Quote
Transmission Fluid Service $140.08 - $502.73 Get a Quote

Hello There, The battery light indicates that you have either a weak battery or something potentially wrong with the charging system such as a bad alternator or a faulty voltage regulator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail.

The jerking reaction you describe may be a result of low transmission fluid. I would recommend having this checked as well. This can happen when there is insufficient fluid in the transmission which causes an inability for the transmission to develop the required hydraulic pressure needed in order to shift gears. I would suggest having a professional from YourMechanic come to your location to diagnose and inspect your car.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I install a car seat using the Lower Anchors and Tethers for CHildren system?
Your car features anchor points for securing a car seat called the Lower Anchors and Tethers for CHildren (LATCH) system. This provides additional security and stability for your child. Here’s how to use it: Locate the anchor points (they’re identified...
When I accelerate from a stop, car jerks
Hello. There are several potential faults that you can have on your 2007 BMW 750i. The cause of the problem may be a transmission slippage, traction control malfunction, or the jerk could result from worn spark plugs (https://www.yourmechanic.com/services/spark-plugs-replacement). I recommend...
Transmission Leak from TV cable? (Kick down cable)
Hello. The first thing I would do is check the transmission fluid properly. With the engine running and the vehicle in park, check the transmission dipstick to see where the fluid level is out. If you overfilled the transmission and...
Cooling system issue - 1999 Chevrolet C3500
The lower intake manifold gasket you replaced seals both coolant, and oil passages. It is possible that coolant (under higher pressure) is leaking into an oil passage. It is also possible you have a bad head gasket - leaking coolant...
My transmission is stuck on reverse but my shifter is on park. Can't move shifter at all.
Hi, thanks for your question. I'd be happy to offer my insight. I suggest checking the transmission shift cable connection at the transmission to see if the cable came loose from a defective cable end bushing. If you would like...
Front CV drive shaft
Hello. The most important sign is when you drive there isn't any vibration. If the source of your question is due to a vibration and you suspect the drive shaft, the best way to check it is to put the...
The ABS and traction control lights stay on the dashboard
Your car is equipped with wheel speed sensors (https://www.yourmechanic.com/services/abs-speed-sensor-replacement) at each of the four wheels which monitor wheel speed while relaying this information to the ABS and traction control system, which are controlled by the car's ECU. When the ECU...
Is my repair strategy is good?
The steering torque sensor is Ford part number CL8Z-3F818-A and it was used from model year 2008 to 2012. The best strategy is to buy a brand new sensor from Ford and install it in your existing column. Ford's recommendation...
Where do you hook up to charge AC on97e420benz and where is it located? 1997 Mercedes E420
Hello - the AC "charge port (https://www.yourmechanic.com/question/ac-recharge-by-ryan-f)" - which is the low pressure port - is on the driver side of the engine compartment, in-between the ABS pump and the engine. The port has a black or dark blue plastic...

Related articles

2012 Ford Escape vs. 2012 Honda CR-V: Which One Should I Buy?
SUVs represent one out of every three vehicles sold in 2012, making them one of the most-purchased types of vehicles in the country during that time period. Compact SUVs are a sub-class that are slightly smaller and offer the most...
The Top 5 Selling Cars in Georgia in 2012
Georgia Georgia offers drivers a mild climate with very little snow, but rain is a major factor. Previous best-selling cars in the area, such as the Escape, Fusion and Camry, have shown that residents prefer a mix of both SUV...
Should I Buy a Honda Accord or a Toyota Camry?
The Honda Accord and Toyota Camry have been the best-selling cars for 20 years due to their quality and reliability. Find out which is best for you.