I have a 2007 dodge ram 1500. Check engine light was on code came up as alternator. Replaced it and the check engine light is stil
I have a 2007 dodge ram 1500. The check engine light was on and the code came up as the alternator. Replaced it and the check engine light is still on. What else can it be?
My car has an automatic transmission.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hi there. When an error code is created, it is often stored in the ECU until it is cleared by a professional mechanic during a check engine light inspection. It is possible that this is the source of your error light, especially if you are not having any further problems starting your vehicle.
How to Identify and Fix Common car Problems ?
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In a nutshell, the alternator helps to regulate the electricity necessary for the proper operation of your car. A faulty alternator not only turns the check engine light on, it also risks your safety.
Yes, a new battery can cause CEL to come on if it is undercharged (i.e. with a percentage of charge level that`s considered too low for the engine). The car computer will interpret this as low voltage and report a fault code which then triggers the check engine light.
An early warning sign that your alternator is going bad could be dim, flickering lights. This symptom could show up on any or all of your dashboard lights, reading lights, headlights or other lights. The alternator is supposed to provide the electricity for your car`s lights.
One of the most common problems you`re likely to experience with an alternator is a failure in the bearings. There are needle bearings in the alternator that allow the rotor to freely spin inside the housing, and those bearings can break down over time as a result of exposure to heat and dirt.
To reset a check engine light without a scanner, disconnect the negative battery cable and wait a few moments. This will reset the diagnostic system in your vehicle, and if the underlying issue has indeed been resolved, the light should go off immediately.
No reset is required. Most of the time, there`s a problem when the check engine light is on.
A bad battery can cause problems in electrical and electronic parts, including the computer. It can even cause a “Check Engine” light.
When a battery is faulty or undercharged, it won`t be able to send the right amount of energy to your vehicle`s computer. This may cause the check engine light to flip on. If you drive a newer model car, you may also have a handy battery warning light on your dashboard.
It`s important to note that when you disconnect the battery on your Ram 1500, it not only resets the engine light, but the computer, and also resets the vehicle`s security system and other electronic systems.
Push down on the tabs on either side of the RAM till it clicks out. Place the RAM on a soft cloth and in a safe place. Wait 60 seconds after removing RAM, this will ensure a full reset. Be careful and deliberate with your hardware, mistakes can be expensive.
HOW TO DIAGNOSE A FAILING ALTERNATOR. If you have a “Check Engine” light on, connect a code reader to the diagnostic port. If you find code P0562, you very likely have a failing alternator (note that codes may vary by vehicle make/model/year).
If a faulty alternator fails to keep your battery consistently charged, the fuel injectors may not fire, causing your engine to stall. A dying alternator can lead to a wide range of other electrical issues. Generally speaking, such issues manifest as an inability to perform at normal power.
A bad battery can cause problems in electrical and electronic parts, including the computer. It can even cause a “Check Engine” light.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
I have a 2007 dodge ram 1500. Check engine light was on code came up as alternator. Replaced it and the check engine light is stil
ANSWER : Hi there. When an error code is created, it is often stored in the ECU until it is cleared by a professional mechanic during a check engine light inspection. It is possible that this is the source of your error light, especially if you are not having any further problems starting your vehicle.
P2196 OBD-II Trouble Code. came and went in 24 hours. 4 starts.
ANSWER : If the mechanic tested the output (functioning) of the oxygen sensor, especially according to the protocol at this link and found that the sensor was non functioning at that time, what you might be experiencing is a "failing" oxygen sensor and so the latest instance of Code P2196 might be explained by that. A complexity though is Code P2196 has many causes other than a failing oxygen sensor including: a faulty fuel pressure regulator; MAF (Mass Air Flow) sensor; ECT(Engine Coolant Temperature) sensor or damaged ECT wiring; leaking or stuck open fuel injector or injectors; and spark plugs and/or coil pack. Basically, if the Code (P2196) recurs, the oxygen sensor output can be re-tested but the mechanic will hopefully be aware of all these other possible causes of that Code setting. If the Code recurs, you can request a check engine light diagnostic and a certified Mechanic, dispatched by YourMechanic right to your location, will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
check engine light O2 sensor already replaced same codes still popping up after replacing old O2 sensor
ANSWER : Hi there. What you received from the parts store was a code retrieval, not a diagnostic. The codes are set when a fault is detected against normal operating parameter. The computer does not know what caused the fault, only that the fault meets the criteria for this code to set. There could be a problem in the wire harness, converter, or the ECM. The code and data are needed to properly assess the direction that a diagnosis needs. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a check engine light inspection.
Diagnostic code read o2 sensor bad, replaced o2 sensor, cleared code but engine light came back on, is it caused by bad air filter
ANSWER : Hello there. Typically jump starting a vehicle doesn’t trigger an OBD-II error code. However, one of the most common misdiagnosis issues with the P-2270 is replacing the O2 sensor before diagnosing if there are any exhaust leaks. Obviously, you’ll want to check for the exhaust leaks first, repair the damaged component, and then clear the codes before scanning the vehicle again. Sometimes the electrical harness attached to the O2 sensor is damaged or dirty which will also trigger this error code. The noise and vibration may be an indicator of a loose exhaust pipe, which may be the source of the error code staying on. If you need any help, have a technician from YourMechanic come to your home or office to diagnose your Check Engine Light and make the necessary repairs.
My daughter’s check engine light came on with a code of P1004 on a 09 Dodge Charger. We changed the short runner valve, the light
ANSWER : The short runner valve actuator that you replaced is just the electric motor that moves the short runner valve to its correct position. However, the problem is likely that the valve itself within the intake is sticking. Using an appropriate spray solvent (carburetor cleaner) you have to spray inside the plenum while turning the valve (tab) back and forth. Eventually it will free up. It’s also possible that the short runner valve harness is open or shorted or that the short runner valve circuit has a high resistance electrical connection. My guess though would be the valve itself is stuck as that is very typical. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a runner control diagnostic repair and cleaning and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
Car started to slow down and then the check engine light, battery, and engine oil light came on. What could cause this?
ANSWER : Hi there. It is possible that the battery cable came loose or the wires to the oil pressure sensor has came loose or failed. Check the battery cables and make sure that the terminals are tight and clean. Check the wires to the oil pressure sensor and make sure that they are connected and not broken. If everything looks good, then the oil pressure sensor may have failed. Plus, check the computer for codes and see what is stored. This will lead you to the part that could have failed. I recommend replacing the oil pressure sensor then checking to see if the lights will go out. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from Your Mechanic, that can assist you with the warning lights that came on.
p0011 code,check engine light one, changed bank 1 vvt solenoid and check engine light still on?
ANSWER : The P0011 code is typically caused by oil issues with the car. I would particularly make sure the engine oil level is not low. The VVT solenoid relies on proper oil levels to do their job. If they don’t have enough oil, they won’t work. You can have a mobile technician from YourMechanic visit your home or office to inspect the Check Engine Light for you. If you follow through with a repair with us you will be reimbursed for the cost of inspection.
Check engine light refuses to go off after engine replaced
ANSWER : Hello there, you have a long series of issues going on with your 2013 Hyundai Sonata. If you keep getting a repeating oil light on than there is likely a fault in that system.
Since this fault has lasted after the engine was replaced it could be a oil pressure sensor, wiring harness fault, ECU fault, oil pump, oil strainer clogged, or low oil pressure.
To diagnose this issue properly you need a complete vehicle inspection to start from square one and identify the root cause of all this.
