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.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I control the tilt of the sun roof?

Your power sun roof has a tilt switch, which is located on the overhead console, across from the open and close switch. The tilt switch is on the passenger side of the overhead console. To open the tilt of the...

Q: Humming noise at the front end of the car

This sounds to me like the exhaust catalyst may be vibrating or it may be the exhaust hitting the frame due to broken motor mounts. The suspension should not be making any humming noise if the engine is at fault....

Q: Possible engine replacement.

Slow cranking can be caused by several things. It could be problem with the battery or starting circuit, or the engine could indeed have internal problems. I wouldn't go that route until you have the vehicle fully inspected by a...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...