Check Engine Light

The Check Engine Light has come on because the computer has detected a problem with the emissions system. It has nothing to do with the coolant. Take it to a trusted professional and he will scan the computer with an OBD2 scan tool. He will use the fault code as a guide to determine what the problem is. also if you had recently messed with the engine as in unplug something and turned the car on the the light will be on for a few days but eventully turn off

Your engine is running too lean, probably the result of either a vacuum leak or possibly a damaged EGR valve. You will damage the valves, pistons or who knows what if you don't take care of this problem immediately.

The Select button and the set button, hold them down together, should reset with in a couple of seconds.

Evap control systems are often times difficult to diagnose. Try using information here: http://www.gearchatter.com/viewpost17788.php If that is more than you want to deal with you may want to take it to a good mechanic.

This fixed it on my Ford. Part cost about $50 at the ford dealer. The oxygen sensor is located below the engine in the exhaust pipe before the catalytic converter and muffler. It is mounted in the pipe with wires going to it. You need a special socket to remove it in most cases but sometimes you can do it with a wrench. When replacing it be sure to put anti seize lubricant on the threads so it can be serviced again in the future. It came with the anti seize lube. Just make sure the anti-seize your using will not damage the O2 sensor your installing if your not using what was provided . Your best to find out if this is the reason the light is on, as it may be just a loose gas cap. Before you do anything, go to Autozone and use their loan a tool program to chech out an OBD-II code reader. Follow the instructions on the box, or if you don't feel comfortable doing it yourself (it's really easy), have one of the store employees do it for you. My check engine light came on this past winter, and it turned out that one side of the engine was too lean. I remember the light came on when I started the explorer on a particularly cold day. Anyway, once you reset it, it probably won't come back on unless there is something wrong with some component. Go to Auozone and have the code downloaded, then come back to this site and ask how to fix that code. Oxygen sensors usually go first, but you can get a light even from having a loose gas cap.

On dodge Neon you turn the ignition key 3 times (without going as far as turning the engine on). Maybe samne on many if not all cars? Then the codes will blink and you'll need the ODB2 code listing. Other option is to connect an ODB2 reader on the car's connector and read the codes directly.

This could be the voltage regulator. Both the positive from the battery and the starter would be connected to it.

Yes, but with the provision that there are no problems as seen by the car's computer. Disconnect the negative battery cable for a couple of minutes then reconnect. This will erase any trouble codes stored in the computer. If everything is okay, the CHECK ENGINE light will stay off. If the computer sees a problem, the CHECK ENGINE light will come on again.

It could be a number of different things; if the radio and other electrical things work with the key to acc. then it is most likely not electrical. It would be best to take it to a mechanic and have them scan it to see what is wrong. Hope this helps.

Check Engine ... self explanatory ... check the engine. Check fluids, air filter, water in the coolant system, oxygen sensor, bad spark plugs, electrical problems, loose nut behind the steering wheel - could be any number of things ... check everything in the engine area.

I just removed a 1.7 Diesel starter motor.

ALLWAYS DISCONNECT BATTERY NEGATIVE TERMINAL (10 mm)

Remove top half of inlet manifold (8mm 12sided socket or spanner)

Undo the two plastic bolts on the expansion tank (water bottle. 10mm)

Move tank out the way

Look down onto starter motor; remove bolt on which goes through bell housing into starter motor (16mm )

Jack car up; from underneath look up to starter motor, remove bolt which goes through the starter into gearbox (15mm)

Remove nut from starter solenoid (little part of starter motor. 13 mm)

Undo Philips bolt and disconnect wire

You have removed your starter motor

First, reset the computer by disconnecting the negative battery cable for a couple of minutes then reconnect. If the CHECK ENGINE light still comes on, check the gas cap and make sure it is tight. Due to emission rules (OBDII), the computer checks to make sure the gas cap seals the gas tank. You might have to replace the gas cap.

That can be caused by an number of reasons. The most common is a misfire or a multiple cylinder misfire. This can me caused from an internal oil leak into the spark plugs. You can go to an Auto Zone or any place like that and they can hook the Jeep up to a diagnostic machine to let you know what the code is. That will help you figure out where to start to fix the problem. If the light is flashing do not drive it because it is something more serious.

This code is defined as: Output Speed Sensor Circuit

If its just on or flashes all the time then you have a problem with your security system. If it just comes on when you start the car then dont worry about it. Go see a dealer if there is an issue,

Take it to Auto Zone and have the codes read for free.

If the light stays on, it shows that there is a hard fault in the fuel system, emissions control etc etc. Either disconnect the battery for 15 minutes or so or take it to a shop to get the code read..that will tell you what part is malfunctioning. There is no other way to shut it off because the light is controlled by the ECM.

I have taken it to the shop but the computer says there are no codes stored then the light goes out but a few days later it comes back on I take it to the shop and it is the same responce No Codes Stored and the light goes out

It Normally will signify something that is more serious, opposed to something minor, the most common reasons are either low oil pressure or low oil level.

It could be as simple as the viscosity of the oil does not match what the manufacturer requires for the engine. My limited 5.7 hemi requires 5/20; there is a sensor that will trigger the oil light to come on if it detects a different weight. However, the best thing to do is to take it to the dealer, and let them read the code.

You can try disconnecting the battery negative cable for 5 minutes. If that does not work then you will have to use a scan tool to reset the light. Know that if you do not repair the problem that caused the light to come on, it will just come right back on.

Most likely a speed sensor at one of the front wheels has attachment broken.

The ECM is located under the coolant reserve tank and mounted to the front of the strut tower. Only a single nut holds it in place. once you remove the nut simply pull it out.

The check gauges warning is an additional warning to the driver that something is not right. If you see this warning, be sure to survey all the indicators on your instrument panel...especially oil pressure and engine temperature. If you see anything you're not sure of, err on the side of safety and pull off the road, shut down the engine and seek help.

it may be an electrical problem (personal experience ground wire from engine itself came loose, vehicle just cut off and would not start again) re attached the wire and work like a charm.2 years ago and still working. check your ground wires trace them to chasis or back to batery,check your fuel injection(if so equipped) also check your ignition system.

that's egrc solenoid valve, you can go and get it check at any parts store or buy a obdII code reader and erase it if the problem persist replace the egrc solenoid, and have the code erased again it should fix the problem, althougth i had a problem like that and it wasn't the egrc, was the egr valve since goes connected to the egrc can give you that problem chek if you have a code for egr, if it shows the code i will suggest to replace the egr it's cheaper

The engine service light is on because there is a problem. The problem has to be fixed before the light can be reset. Your local auto parts store can plug a scanning device into your car and read the trouble code(s). They won't charge you for this service if you purchase the parts needed to repair the car from them.