Q: Car is jerking forward when car is stopped with brake applied.

asked by on June 24, 2016

When I go to stop, my car revs up and jerks forward on me. I have it in drive and if I pumped the brakes, it really jerks me forward. I have my foot on the brake the entire time. It's scary because I've almost hit someone. Thank you

My car has 59266 miles.
My car has an automatic transmission.

Car jerks forward at high speeds Inspection $94.99 - $114.99 Get a Quote

What you are describing is a real safety concern. You should have your Mustang’s brakes checked out right away before you drive it anymore. It sounds like there may also be an idle control issue that is causing RPM’s to increase. A vacuum leak under the hood can cause increased idle speed. The power brake booster is a component where the engine vacuum and the brakes systems meet. I recommend having an experienced technician, such as one from YourMechanic, inspect your car’s jerking problem in order to have the correct repairs done.

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

Rattling noise under vehicle
There are many things that can cause a rattle under your vehicle. If the rattling occurs when driving and seems to happen more when accelerating or decelerating then it is more than likely a loose exhaust heat shield. A mechanic...
Thermostat not working
Hello. If a thermostat is completely stuck closed, then it does need to be replaced without driving the vehicle. If it is not opening then it will be very easy to overheat the engine. If you need to have this...
blower motor only works sometimes
You may have a blower motor that has "dead spots" when it's winding. Sometimes you can tap on the motor if it doesn't start to move again. I would try performing this simple tap test and if it starts to...
is it worth fixing the timing belt and timing pulleys?
If the belt is broken (https://www.yourmechanic.com/services/timing-belt-replacement) or the engine is noisy and having problem, then no, it probably wouldn't be worth purchasing (https://www.yourmechanic.com/article/how-to-buy-a-used-car). For whichever car that you are seriously considering moving forward with, I suggest having a certified mechanic...
Forceful jerking while driving - 2008 Volkswagen Touareg
Jerking is a little too vague to precisely narrow in on the issues. Does it happen at high, low, or both speeds? Does it happen while driving straight or while turning? Does it happen while braking or acceleration? The issue...
Dashboard lights not working
Hello. There are a couple of things that come to mind. The wire that is not connected to anything could be the wire that is causing the problem. That wire could be shorting the turn signal system once it is...
Cad wont go faster than 35mph
Hello. From what you describe it would appear that some sort of serious issue may have occurred. If you've found oil all over the engine I would try to figure out where it came from. It is likely that an...
Bad crankshaft sensors - would that cause the problem of poor acceleration? 1996 Chevy K1500
Hello - yes, a failed crankshaft or camshaft position sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-crankshaft-position-sensor) can cause a "loss of power" situation. The ignition system has a limited fallback ignition timing scheme to allow the vehicle to run, albeit with little power, to get...
I'm buying my first car and I have a choice of a 2001 Chevy Malibu no issues clean title with 150k miles for $1450 or I Have a 200
The two cars you are referring to are so mechanically similar that there is no meaningful distinction, going forward, as to cost of repair or expected remaining service life. Rather, the costs you may experience will depend on the as...

Related articles

A Buyer’s Guide to the 2012 Mercedes-Benz M-Class
The The 2012 Mercedes-Benz M-Class is a mid-size luxury SUV that combines utility and comfort to make the perfect every day vehicle. It can handle almost any terrain with its all-wheel drive model. Drivers and passengers will experience a quiet...
A Buyer's Guide to the 2012 Lincoln MKZ Hybrid
When When it comes to performance, there’s no argument: the 2012 Lincoln MKZ Hybrid is the leader in its class. Fortunately, it brings a number of other amazing features to the table too. Key Features Speaking of performance, let’s start...
How to Replace a Brake Hose
Modern Modern cars use a combination of metal lines and rubber hoses to contain and transfer the fluid that applies your brakes. The lines coming out of the brake master cylinder are made of metal to be strong and long...