Q: Car jumping when letting off gas

asked by on January 22, 2016

When slowing down in my car, or when speeding up and then letting my foot off of the gas pedal, sometimes I will feel something jump pretty hard a few times. It shifts fine, so I don't think it is the transmission.

Greetings. Your described symptoms sound to me as the cause might be a broken engine or transmission mount. Gasoline engines generate a lot of torque and the mounting system keeps the engine and transmission under the hood! A weak or broken mount allows extra movement where the engine and transmission can jerk under load or decelerating, just like what you’ve described. Have a mechanic, such as one of our YourMechanic experts, check all of the engine and transmission mounts to pinpoint and replace any mount mount that is failing.

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

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

power steering is leaking / I have the pump/ pressure hose / belt

Any rubber component on a vehicle system is typically leak prone after about a 6 year lifetime particularly, for example, if you break the seal that a rubber hose in a power steering system makes to a nipple (on pump...

If I shut my car off it doesn't restart.

Well the first thing I would check is to see if the alternator is working. I would suspect it would be in the distributor. Ignition module, tdc sensor. A few voltage tests can tell you for sure. I would recommend...

Car jerking and gas smell and loud noise

The most important issue is the fuel odor which signifies either a leak (vapor or liquid) or engine misfiring. A leak is potentially disastrous, especially if you park in an enclosed space such as a garage where vapors can accumulate....

Related articles

The Best Used Cars to Buy If You’re an Architect
Obviously, Obviously, architects appreciate beauty and symmetry. This is not just the case when it comes to their building projects, but also in terms of the vehicles they choose. We have evaluated several used cars, and identified the Mercedes...
The Best Used Cars to Buy If You're a Personal Assistant
As As a personal assistant, you have a lot of demands placed on your time. Often it’s important that you be able to get around town quickly, running a ton of errands, picking things up here, dropping them off there,...
How to Use Jumper Cables
It's It's disheartening when you settle into the driver's seat ready to go to work or visit friends, turn the key in your ignition, and nothing happens. It is usually a sign that your battery is dead and just needs...