Skip the auto shop - Our mechanics make house calls

Q: My car doesn't move when in Drive or Reverse when idling

asked by on

I replaced my brakes yesterday and when I went for the test drive I put it in reverse and normally the idle should move the car a little but it doesn't. When I hit the gas the the car moves but you can hear the pads and rotors grinding. I took the pads off to have a look and the top of the pad on both sides is wearing down but the bottom isn't. The pads are installed correctly.

My car has 91000 miles.
My car has an automatic transmission.

A: If you pushed the pistons into the calipers...

If you pushed the pistons into the calipers in order to accommodate the new pads, you may now have too much brake fluid in the reservoir. Check that the fluid level in the reservoir is not above the maximum level. If it is, the lack of space above the fluid will tend to keep pressure on the calipers causing the sticking you are experiencing. Carefully adjust fluid level if incorrect. You generally cannot install brake pads on worn (used) rotors because the new pads will quickly wear irregularly. Rotors have to be turned on a brake lathe and/or replaced. If the calipers are original to the car, they should have been replaced as well. At minimum, the sliding pins on the torque plate must be disassembled, cleaned and re-lubricated with a special high temperature grease. All of the foregoing factors could be contributing to the sticking you are experiencing. YourMechanic can provide you with a mobile inspection to fully resolve the issue if you desire.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: I have a question about my headlights.

You may want to check local laws regarding the use of colored light use. You may only be allowed to use them at car shows and while parked. If you want to add lights to the headlight housing, it may...

Q: When I'm sitting in park my truck makes a loud bang sound

Depending on the sound and the location of the sound, this may be related to a misfire/backfiring problem. Engine backfire is caused by an imbalance in the air/fuel ratio being supplied to the motor and will occur in one of...

Q: Odd marks on rotors

Hello. This can happen for any number of reasons such as a small burr in the pad material or even a small piece of dirt or debris lodged in one of the rotors. If you are starting to notice changes...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...