Q: Hi, i was driving my car just fine today when all of a sudden it started jerking. it jerked a lot getting up to about 20mph then i

asked by on June 04, 2017

Hi, i was driving my car just fine today when all of a sudden it started jerking. it jerked a lot getting up to about 20mph then it also jerks when i coast at around 45mph. also, today when i was decelerating it just died, check engine light came on, but then it started back up just fine. i dont know if this is related, but last night i disconnected my battery, but everything is connected right again. also possibly unrelated, my catalytic converter needs to be replaced. whats wrong with my car?

My car has 134000 miles.
My car has an automatic transmission.

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

Car stopped three times in one day
Hi. If the code is still present after both sensors have been replaced, and the engine is stalling, further diagnostics is needed. First of all, a new sensor doesn’t always mean a good sensor, especially aftermarket ones. Check the sensor...
car loses power, hesitates, and miss fires
From the symptoms described, it does seem that your BMW is unfortunately experiencing engine misfires. However the source of these misfires can really be caused by multiple sources, from worn out spark plugs, to even a failing mass air flow...
My SUV is making a grinding noise
The noise may be coming from the transmission torque dampener. The transmission would need to be identified by the dealer as a failed part number on the transmission. If the number on the transmission match, then the transmission should be...
"Charge Malfunction"
It sounds like there is a problem with the drive belt (https://www.yourmechanic.com/services/serpentine-drive-belt-replacement). It drives the alternator, water pump, and power steering pump. The belt may have broke, or some fluid leaked onto it causing it to slip. If the belt...
How to check if your altinator alternator is out?
You are most likely driving on the alternator to get there. The battery and alternator can only be examined with a tester device. Do not try and disconnect the battery cable while it is running or you will damage the...
Transmission takes awhile to go into overdrive
Hello, the concern you have, I advise not to drive. The issue needs to be addressed, the vehicle will become inoperable. The automatic transmission has 3 systems; electronic, hydraulic, and mechanical. What describe could be an internal mechanical failure...
What is the typical price to repair brakes on a 1991 VW Cabriolet?
Hello: If the price quote you received for the brake service includes new rotors, pads and labor for all four brakes, then the quote you listed is average for local mechanics or shops. Dealerships would charge in excess of $500...
What is that black thing in front of my car that's hanging?
Hi There, A number of things are black in color and may drag from the front of the vehicle if they happen to be loose or broken. There are many different under carriage guards that help to protect various engine...
My 2012 Kia Forte has been having trouble with acceleration for the last couple of days. When pressing the peddle the car will sud
Hi Miguel. Thanks for contacting us today. It is possible - however unlikely, that while replacing the brake switch, an error code may have been triggered in the ECU, causing the acceleration problem you are experiencing. What is more likely...

Related articles

A Buyer’s Guide to the 2012 Lexus LS
With With a four-generation legacy spanning a quarter of a century, the Lexus LS may not be the riskiest, most cutting-edge vehicle in its class but its devotees don’t mind – the reliability, near perfection of design, and pronounced bent...
A Buyer’s Guide to the 2011 Lexus LX 570
Despite Despite pressure on the automobile industry to produce more – and better – fuel-stingy options for the mass market, there remains a place for luxury SUVs that are neither size conscious nor gas conserving. The 570 stands firmly in...
How to Buy a Lexus
When buying a Lexus, consider your budget and which model you want. You should also run a vehicle history report and take a test drive before buying.