Q: Engine light and bad gears

asked by on

One day the radio system freezed and the following day engine light came on. I took it to autozone and they connected the reader and said it is PCM, whether needs to be replaced or reprogrammed. I disconnected the battery and engine light went off. After 2 days started to kicking and engine light came on again and I disconnected the battery again. And I took it to dealer with the engine light off, they said it was something wrong with the MAP (manifold pressure sensor). I changed it and after one week the engine light came on again and it had very low power in engine when I was pushing gas and there was something wrong with the brakes but since I was 150 miles away from the city, I disconnected the battery again. Still the engine light is off but When I push gas, it has low power and the gears are not smoothly changing. I am just wondering how can make the engine light come on in order to take it to dealer to understand otherwise they won't understand what is wrong with the car

My car has 43300 miles.
My car has an automatic transmission.

When you disconnect the battery, the PCM (powertrain control module) looses it’s stored information about your driving habits. Believe it or not, the car learns how you drive, and tries to adapt to your style, so things may not go smoothly for a while after disconnecting the battery until the car can "re-learn" the settings. But if you have a malfunction, a code will be stored. Usually the check engine light doesn’t come on until the second time the PCM has seen the fault, but there will still be a pending code that is there for anyone to read who knows how to access it. If you don’t think the dealer is serving you well, contact Your Mechanic. They will send a technician out to your home or office to read the codes on your car and tell you what can be done about it.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Engine light and bad gears

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: Code P0011

Trouble code P0011 points to an issue in the engines variable valve timing system. The solenoid responsible for altering the valve adjustment may have become dirty or failed and is stuck in a position better suited for a warm engine....

Q: When i remove fuel pump regulator should there be fuel in it and if not how do i know if regulator is bad

I'm assuming you're talking about the fuel pressure regulator. If the regulator is not leaking, the only test for it's functionality is a fuel pressure test. That takes some special equipment. If the car is backfiring out of the intake,...

Q: How costly is it to replace an airbag wiring harness ?

The airbag wiring harness has several sections. So it shouldn't be necessary to replace everything except in the most extreme conditions. There is a section in the column that has a spring like winding, and I think two other sub...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...