Then, have the alternator tested in your local auto parts store. Do you want to see more troubleshooting tips? Sometimes you can notice this when the headlights, instrument panel lights, and other interior lights dim during engine operation. It means that for some reason, the alternator has stopped charging the battery and your car is running on battery power. Auto Repair Software for All of Your Needs Mitchell 1 provides premium automotive repair software for professional auto care shops. Any ideas of what my problem could be? I Dont want to get stranded. Add a temporary ground connection from the battery to the chassis. This section includes an excellent area where you can step through troubleshooting your vehicle based on sounds, smells and more, and then drill down into the specific behavior characteristics, and the system attempts to offer you some possible causes.
Disclosure: This website is supported entirely by advertising. This video covers resetting the timing on a Chevrolet pickup truck, but this method could also work for other make and models pickups. Like I said been on 2 years along with abs light. A bad battery cell can cause the alternator to over-charge the good battery cells. Why does the light come on and not go out? Auto Repair Software for All of Your Needs Shop Management Software Managing all the moving parts at your auto repair shop can be time-consuming and difficult without the right tools. Scan the computer, just in case there are any pending codes. It kept stalling, so we had it checked at an auto parts store.
Instead of using a voltmeter, you can have an assistant watch the indicator light on the instrument panel to see if it turns off as you wiggle various wires and connectors. It should come off i. They can help you confirm that you actually have a problem in your charging system and locate the source of the problem. When the measures were taken, the charging system measures were 13. Before you start replacing components with the hope of fixing the problem, you need to determine which component or components are causing you trouble. Make sure you are using the correct battery for your application. Many of these stores will test your battery for free.
Check the alternator fuses and fusible links. Set the transmission to Neutral manual or Park automatic. The mechanic will show not only how it is done but right thru the shortcuts so you can save your valuable time. The answer is 30 foot-pounds of torque. It will help you identify wires, specific components, and possibly suggest some specific tests recommended by your manufacturer. Have car repair questions for a mechanic, get the answers you need and start taking care of your auto repair problems today. What do you think about this problem? Using ProDemand will help you cut down the time you spend diagnosing and help you increase efficiency and accuracy We also provide the only comprehensive repair information software for Class 4-8 trucks — the TruckSeries software package.
ProDemand provides you access to an ever-growing database of professional auto repair information, and has powerful features like color wiring diagrams and mobile friendly information to meet all of your needs. The engine starts, the battery light on the dash goes off. Here's a test you can do: Use a length of vacuum hose to listen for alternator noises. The instructions are simple and practical that even ordinary folks can understand. This fault could point to a faulty alternator or voltage regulator.
There could be some high resistance in the charging circuit preventing the alternator from charging the battery: corroded cables or wiring, incorrect wires or cable size; bad crimped connectors or loose connections. Start the engine and let it idle. And if not what else can i do to diagnose where my short is? Worst case scenario -- -- is something which can be avoided. Alternator quality can be another factor of course. This post can help you: Question: I installed a new 105-amp alternator in my 1982 Chevrolet C10. Make sure the pulleys are correctly aligned, and the alternator is properly mounted without rust accumulation, especially the ground connections, including engine and battery grounds. This rings true for any level car repair mechanic that wants to become better at what they do.
So don't be surprised to find your alternator going bad or the system developing problems after a few years of trouble-free operation, even if you have maintained your car well. For this, go over this post, so you have an idea how to do it: Basically test between the alternator power post and battery power; then ground and battery ground. If the light illuminates only intermittently, it usually indicates worn-out or bad carbon brushes in the alternator. I changed two alternators, but I still have the same problem. Also check the connecitons to the alternator and wires. Look for signs of wear or damage like cuts, shiny spots, missing chunks.
Education and experience are both key in becoming better at most anything. Richard, The module ecm came back from Module Experts last week. There are many resources available here to reference. Make sure it turns freely and is noise-free. The alternators were bought from O'Reilly's auto parts. Your email and wiring diagram really helped! Now I have the information I need to fix my car. Just found out they are rebuilt alternators, and not new.
Each section provides very detailed information on how that particular car system works, including complete slideshows and even videos detailing those parts and systems. Check the connections in that part of the circuit for a loose wire, corrosion at the connectors or wiring damage that may prevent proper current flow between the battery and alternator. You find yourself adding water to the battery frequently. However, just because the terminals look clean, it doesn't mean they are tight and in good condition. We reserve the right to make such judgements and to share our opinions with our visitors.
What else can I do to get the car running again. Is there something else that could be causing this failure? And tested the battery with the car running and the battery stays around 13. I replaced the alternator because it was causing a camshaft position sensor code. The battery voltage was 14. In order to reset the timing, you have to disconnect the set timing connector. If the System Seems to Be Over-Charging Besides test results, another potential sign that your battery is being overcharged is that your battery terminals keep accumulating corrosion.