Check engine light comes on and off periodically

Most people are concerned when it comes on. If the light goes off , we assume things are okay. Knowing if we should continue driving or stop right now is difficult. To clear the confusion, we need a basic understanding of what the check engine light is trying to tell us. A check engine indicator is a malfunction-indicator.

A certified mechanic should be able to diagnose the problem easily. Technology is on its way to helping us figure out what’s gone wrong when the check engine light comes on. Some cars tend to switch every alert light on briefly when ignition is turned on. Check engine light periodically comes on , will go off by itself. Why Does My Check Engine Light Go Off Sometimes?

Well there are a series of tests that your. I would drive it for the six hours and watch your other gauges closely, if you have any. Stay away from that first shop.

And after a day or so check engine light went off. Now I am confuse is there a problem with Oxygen sensors? Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. The check engine light comes on when any sensor reports a faulty device.

However, it may not be the device that is ba it may just be an inexpensive faulty sensor. When sensors fail, it is usually intermittent. A useful experiment is to clear the codes from the computer and watch to see if the check - engine light comes back on. Should I still take it in?

My rule of thumb is to run a tank or two of gas through the car once the light comes on. In addition to the check engine light , your dashboard may also indicate low oil pressure or overheating issues. Pull over and shut off the engine as soon as you can if these lights also illuminate. Some cars may have a red check engine light to alert you to stop right away, while a yellow light stands for investigation.

An ominous sign for any driver, the check engine light creates a feeling of impending doom that makes you wonder if you can even make it home. When this dashboard light of doom comes to life, you immediately ask yourself — why is your Volkswagen check engine light on? Take a look at a few reasons why right here at Vic Bailey Volkswagen. Periodically , you also should test the check engine light and other dashboard warning lights. If the check engine light comes on in the city but goes off on the freeway, then the problem is only happening in city driving conditions.

Driving along at Highway speeds for an hour or so. After getting back up to speed the Check Engine light goes off. Could this be serious and what may be causing this. A minute or two and then goes off.

I checked the oil level and it is fine. The engine check light periodically comes on and goes off after a minute or so. A week or so goes by and it happens again I had osensors replaced after diagnostic revealed osensors ba engine running rich.

I have been advised by a chrysler dealer to check the gas cap to make sure it is closed properly, which I did and it has been loose each time I have checked. However, the “ check engine ” light should not be ignored as the underlying issue will worsen, potentially leaving the driver stranded or facing a large repair bill. All vehicles benefit from routine care, and it is the best way to keep the “ check engine ” light off.

GM manual says this is a misfire detected in the engine - any thoughts? If you also notice on your dash, in addition to the activated check engine light , that you have low oil pressure or your Mercedes-Benz is overheating, you should safely pull off the road as soon as you can and shut off the engine. Once again, this can cause the Check Engine light to come on. With your engine off , check your spark plug wires for tiny cracks or holes, especially around the ends of the wires.

If they look shabby, you should replace them. Parked the car for a couple of hours, when restarted the check engine light came back on. My usual test if the check engine light comes on and then goes off , I do a decently hard pull from a stop, then slow down rather quickly. The check engine light has a code associated with it explaining why the light came on. What Does the ‘‘ Check Engine ’’ Light Mean?

And How Does it Affect My Emissions Inspection? The vehicle’s on-board diagnostic (OBD) computer continuously or periodically checks the emissions control system and its components. Since the light comes on at low engine speeds.

Nissan Truck Sensor Light. The Check Engine Light Periodically Comes On. A Minute Or Two And Then Goes Off. Turn Off Check Engine Light. Using this to show forum.

Glad it was sensor rather than oil pump problem. However, a check engine light flashing means that something is seriously wrong and effecting the engine management and emissions systems and needs to be addressed right away before any more serious damage occurs. Thir the check engine light continuously comes on and off (and when I get it checke I am told something about the thermostat, but have had no problems with it overheating). When the check engine light comes on, it indicates that something is happening or, in some cases, not happening.

For the last month or so the stabilitrak warning light has come on periodically and then the reduced engine power light also comes on. Meyer adds that in these cases, even if the seat belt clicks, the computer doesn’t detect the connection, causing the light to illuminate. We went to a lot of places to fix it but still it comes back. Can someone help, i hope to fix it soon. If you approve the repair estimate, they will replace the faulty part(s), clear the memory of any fault codes, turn the Check Engine Light off , and let you drive the car for a few days to see if the light comes back on or not.

When I push the run button, the check engine light comes on and the efi gets the gas feed like normal then goes out. A second or two later the check engine light comes on in yellow for about 3-sceonds,then goes back off. This is the 2nd time that this has happened. After the 1st refueling the car stalled and bucked and then after a few miles calmed down.

I thought perhaps it was bad gas. During the 2nd refueling, with octane, and just as the fuel clicked off , the engine stalled. No check engine light in either situation.

If I hit the gas a bit harder, the RPM goes up. I usually re-start the car (around 3-times) then the check engine light goes off. It is a pain if the check engine light comes and you are short on cash or a code reader!

The pgm-fi light is coming on periodically.