Skip the auto shop - Our mechanics make house calls

Q: No acceleration

asked by on

Got codes 33 35 56 55 63. Runs for awhile hard to start no acceleration.

My car has 154623 miles.
My car has an automatic transmission.

A: The list of codes you are getting point to ...

The list of codes you are getting point to different sensors. Code 55 is a computer error code and so you may have a computer failure.

I would first look at the computer under the hood to see if it has bad connectors in the wire harness and/or problems in the wire harness itself. The vehicle may have more than one problem and would need to be looked at by a qualified mechanic. They will be able to diagnose the codes you are getting and fix your acceleration problem.

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: AC not working in car.

It is possible that the refrigerant may be low again or you may have a bad pressure sensor in the AC system. If there is low pressure, or the computer thinks there is low pressure due to a bad sensor...

Q: I've had the fuel pump replaced, distributor cap & rotor, ignition control module & crank sensor. Truck still won't start. The

Hi there. Has the battery been tested? Have the battery tested with a digital tester that provides current voltage, cold cranking amps, and state of health. A bad cell in the battery can wreak havoc on the electrical system and...

Q: Broken rear-end shock mounting bracket

The rear end will bounce more than what you are use to when the shock worked. You will need to have the bracket welded back on to the rear as soon as possible.

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.