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How do you reset a car battery after disconnecting?
How to Disconnect a Car Battery to Reset the Computer
- Clean any corrosion off of the battery and terminals with a can of spray-on battery cleaner.
- Hold the positive and negative cable ends together so they’re touching each other but not the battery.
- Wait five minutes for the diagnostic information to be erased.
What is wrong with my car if it turns over but wont start?
When your engine cranks but won’t start or run, it could mean your engine is having trouble producing a spark, getting fuel, or creating compression. The most common causes are problems in the ignition (for example, a bad ignition coil) or fuel system (for example, a clogged fuel filter).
What causes a car to start after disconnecting the battery?
Click to expand… Weak battery and poor connection at the terminals (dirty, corroded). That ‘click’ is very telling. Take the clamps off, clean the posts and the clamps with a wire brush, snadpaper or whatever and put it all back together. Speaking of corrosion, that sh!t is like cancer in the way it spreads.
Why do I have to disconnect then reconnect the battery?
By disconnecting and reconnecting the battery it doesn’t work every time but maybe after 5 or so tries. I have been pulling fuse 6 from the junction box which is in line with the security auto shut off. This does not seem to work. Another problem that just came about is sometimes while driving my rpms will go to zero then come back immediately.
Why is the ground terminal upside down on my car?
If you don’t have a good solid connection it is likely that the motor won’t be able to run, or won’t develop enough torque to start the car. The battery posts are slightly tapered and the slight looseness you describe makes me think that the ground terminal may be upside down on the battery post.
What happens when you take the NEG battery cable off?
Taking the neg battery cable off is resetting SOMETHING that is causing the problem. PATS is going off. Taking the neg battery cable off is resetting SOMETHING that is causing the problem. Click to expand… Weak battery and poor connection at the terminals (dirty, corroded).