Q: Engine shakes when fuel is added

asked by on June 24, 2016

When I put fuel into my car, the engine shakes. It was right after I had the transmission serviced. It is also making a knocking-type of sound. A friend suggested that it might be the motor mounts, but I think my car is front-wheel drive (so mounts would be on top and that wouldn’t be the transmission). Is that correct that it’s not the motor mounts and what is your advice for repairing this problem?

Noise from engine or exhaust Inspection $94.99 - $114.99 Get a Quote

Hello! If the rubber bushings and motor mounts are really bad then it could cause a knocking noise. There should also be transmission mounts as well. I suggest to check out the motor mounts and transmission mounts for wear and tear. I recommend having a qualified technician diagnose the noise in person to determine if the noise is related to defective mounts. Once the problem is pinpointed, an accurate repair can be made.

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 you automatically transfer a call from a phone to the HandsFreeLink?
Your HandsFreeLink® (HFL) system is pretty advanced, and offers the ability to transfer a call from the phone to the car even if the call is already in progress. Here’s how to set up automatic transferring: Press the phone button...
Windshield wiper fluid won't spray
The symptoms you describe lead me to believe you have either a washer pump motor that has failed or the connection to the washer pump motor has a break in it. To be 100% certain it may be time to...
Car shifts roughly and jerks
There is most likely a problem with one of the sensors on your engine. Depending on which sensor fails, and how it is failing, signals may be sent to the computer that can make the transmission shift harder because it...
Squealing noise
Hello. It sounds like your drive belt may need adjusting. Drive belts that are too loose can squeal, especially when the engine is cold. I suggest you have a trained professional, such as one from YourMechanic, adjust your belt (https://www.yourmechanic.com/services/adjust-drive-belts)...
RV won't start
The RV's of that year on the Chevrolet chassis are generally on the P30 chassis. One weak spot in the starting system is the ignition switch itself. A voltage check at the starter solenoid will need to be performed to...
Steering wheel tightening up when making a sharp turn
If your truck has a rack and pinion power steering setup, the rack and pinion gears may be binding internally. If your truck has a gearbox setup, the power steering gearbox gears may be binding internally (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-steering-rack-gearbox). I would recommend...
My car makes a clunk noise when turning the wheel while parked
Normally, the noise you are describing is commonly seen with failed outer tie rods (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-tie-rod-end), failed CV axles (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-axle-cv-shaft-assembly), broken sway bar bushings (https://www.yourmechanic.com/services/stabilizer-bar-bushings-replacement) and the steering linkage itself. With the modification of the vehicle, it can change the operation...
Car shakes when braking - 2003 Ford Focus
Hello. Vibration during braking can be caused by many things. The specific symptoms you describe are commonly caused by worn or warped rotors, or tires/wheels that are not properly balanced. If the brakes and tires are new and all in...
Only when it's really hot outside the temperature gauge reaches almost about less then half way. Car won't start up again till coo
There may be 2 issues to deal with here. The inability of the engine to reach "normal operating temperature" (always the center of the gauge), indicates either a weak or failed thermostat, or a failed coolant temperature sending unit/coolant temp...

Related articles

Symptoms of a Bad or Failing PCV Valve Hose
Common signs include poor fuel economy, the Check Engine Light coming on, engine misfires while idling, and noise from the engine.
Mitsubishi Certified Pre-Owned (CPO) Car Program
If If you have been shopping for a used Mitsubishi 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...
How to Pump Gas the Right Way
Locating your fuel filler, pre-paying for fuel, choosing the correct fuel grade, and not topping off are helpful tips to pump fuel like a pro.