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Check Engine Light
The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.
7,238 Questions
The keyword in this question is rain...
Water and the engine electrical system just do not 'mix'.
A few pieces of the puzzle to start...
- The flashing check engine light (CEL) indicates the engine computer has detected the engine is misfiring - and lots of it. You should be feeling the engine struggling to run and 'stuttering'.
- Electrical basics:
- The coil generates a high-power electric charge
- The sparkplug wires carries that charge to the sparkplug
Sidebar: The computer (PCM) times the electrical charge to get to the sparkplug at just the perfect time when the air/fuel in the cylinder is ready to fire - The electrical charge enters the sparkplug and ignites the air/fuel into a controlled explosion (of energy).
- Electricity will take the path-of-least-resistance,especially if there is water/moisture to travel along
If there is any weakness or flaw in the connections between the sparkplug wires and the coil, or, at the other end at the sparkplug, the electrical charge is going to escape, or take a detour and not make it all the way sparkplug!
So in this case, focus your efforts on finding where the electric charge / 'spark' is escaping:
- Replace sparkplug wires - chances are yours are original and about 10 years old. They've done their job and time to retire them.
Might as well do the sparkplugs while you're in there. - Inspect the coil for any signs of cracks or breaks / flaws in the surface.
Electricity often leaves a light gray-colored track on the surface of the coil - a good indicator of leaking at the wire/coil connection point.
See "Related Questions" below for very detailed instructions/information on replacing plugs, wires, coil and firing orders and more.
Could be a dead fuel injector.
How can you get trouble code meanings for kenworth?
Call a dealership, talk to the service department, tell them what motor is in your truck and what fault codes you're getting.
What does the codes P0171 and P0174 Mean when your engine light is on on my 2003 Ford Windstar?
Trouble code P0171 means: Fuel System Too Lean (Cylinder Bank 1) Trouble code P0174 means: Fuel System Too Lean (Cylinder Bank 2)
These 2 codes are common indicators of a well-known failure on the 1999-2003 Windstars. Be sure to review the additional information in the "Related Questions" below...
How do you reset the check engine light in a 2002 Toyota Camry?
It is reset with a OBD2 scan tool, after the repair of the system.
That's a pretty big question with not very much information. First, I'd plug in a code scanner to figure out what the COMPUTER thinks is wrong. The computer is seldom wrong.
My understanding was that it had something to do with the O2 sensor not working properly.
Carbon build up inside the EGR valve can cause a no flow code. The valve is located Ênear the center of the rear of the engine. It is held on by 2 bolts and a metal line.
Why does your vtec on your gsr not kick in at all the check engine light is on?
VTEC stands for (Variable Valve Timing and Lift Electronic Control ) and I have no idea how you would be able to feel it " kick in "
If your engine light is on you will need to have the codes read by a scanner, then you will have a much better idea what you are looking at.
Which condition will turn on the engine stop engine warning light?
Engine coolant temp running 220 degree F
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.
Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
For a dodge grand caravan Should a engine code of P1684 cause the check engine light to come on?
It would be very rare for a P1684 code to turn the light on.
What does the 'Check Coolant' light mean on a 91 Mercury Tracer wagon?
Check the coolant level in the radiator when it is cold.
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**Actually the check coolant light indicates the reserve is low. When facing the engine with the hood up...look to your left and you should see the tank. Fill that to the fill line and then run the car until the thermostat starts to pull the coolant...add when it gets low and until it stops taking fluid. Do not add directly into the radiator unless the reserve tank is empty.
Your 95 Toyota Avalon has a check engine light on and you cannot find source of problem?
Pull the codes from the computer, match the code to the troubleshooting procedure, follow the procedure to find the source. Repair the source, light will go out if that was the only problem. There are "monitors" or self test the computer runs the car through, if a problem occurs, it may not run all of the self tests until that problem is taken care. Therefore, another problem may exist. It is emission related. If you are unable to do this, take it to an independent repair shop and have them do it for you. We just called our mechanic yesterday about the same problem. He said that since he had just installed a new belt, the problem might be that we didn't screw the gas cap on tightly. After fixing the problem it could take 200 miles before the light goes off.
How do you fix service engine light on 96 corsica?
on mine i just changed the o2 sensor located in the front by fan
How do you turn off check engine light on Volkswagen?
Generally, the CEL (check engine light) is generated by an emissions related error.
Many auto parts places can "code" your car to tell you what you need to fix.
Fix the problem, the light should go out.
Other than that, you could have the code cleared via above or by disconnecting the battery, but it will probably return if you don't fix what was wrong in the first place
How do you reset the check engine light on a 2001 Nissan frontier?
Connect an OBD-II code reader to the port just above the driver side kick panel and use it to reset the truck's computer. These readers are available online for less than the cost of a tank of gas. In the US, AutoZone will loan this tool free of charge (with a credit card) and the light can be reset in the parking lot.
2007 Tahoe how to reset check engine light?
Many of the OBD2 diagnostic scan tools allow you to clear the codes. You can borrow, rent or buy an OBD2 code scanner at most auto parts retailers.
However... once a problem has been properly corrected, most codes will clear themselves after the engine has "cycled" a few times. A 2007 Tahoe does not use OBD2, it uses CAN for communications. A scan tool must be CAN equiped to clear DTC's. Also, it may take up to sixty drive cycles before the VCM turns off the SES, so it will take awhile.
Can your car pass inspection with your service engine light on in Ct?
Of course not, the problem must be fixed.
How do you reset the service engine soon for BMW?
you can temporarily clear the light by disconnecting the negative battery for a minute, or using a code scanner, but if you havent fixed the cause it will come back on.
Why is the check engine light on in your 2000 stratis?
Many reasons! Go to the Dealer or Auto Zone (free) and have your problem codes read from the computer in the car.
How do you repair DTC Code P0410 secondary air injection in 2001 Jimmy?
There is a technical service bulletin for this code. This concern may be attributed to water that may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump. Replace the AIR pump and install a new inlet hose and solenoid tube assembly.
