You can buy quality, relatively inexpensive scan tools at most auto parts stores or online. Read up on other forums and assuming that it might be a misfire. There is a mark on the timing chain cover behind the harmonic balancer behind the crank pulley. This will clear the codes on this year truck. If you have a V6-8 engine, check the O2 sensor for bank 2. This can also lend to a hard start if all cylinders are not firing properly.
If not… Do injectors have pulse? Continuous Flashing When the check engine light flashes continuously, it means you have a critical problem that will cause serious damage if neglected. But new plugs and wires couldn't hurt, does it misfire when it is wet outside, good indication of plug wires. Otherwise, you'll start replacing good components without actually fixing the problem. Ask them to reset the check engine light at that time. It seems to only do it when I'm driving on the highway.
These may work; I don't know. The truck had flashed like this in the past, but never so much all in one trip. Check these things out first,and if you still have a problem then you will have to ask your question again. Take it to a nationally recognized parts store and see if they find any codes and can reset the light. My suspicion is that there is a problem with one of the wires in the loom under the dash.
Once i am out of the wash the engine lights stops no weird idling or anything during the blinking. Has anyone ever had this happen or know why its doing it and what is a solution to the problem. You wouldnt know it until you felt it running funny or you broke something. But don't use this procedure on newer models or you risk erasing the computer system adjustments as well. It could be that you need new oxygen sensors, for example. You can try without it though.
Or if you have on star press button ask for remote diagnostics. It may be as simple as a loose fuel cap. My 96 Chevy 305 is at the 2 o'clock position. I consider a crank re-learn as a good preventative maintenance procedure every few years as the engine ages. To my thinking it must be a weak or bad connection somewhere because if I fiddle with the wiring it comes back on, sometime a light touch other time more vigorous, but as it goes never the same wiring loom or wire.
This means that a specific code will point to the same type of problem regardless of what make and model you own. Truck died on me on way home. P0300 has been set due to the first code. I can tell you that its getting worse because I had to move my truck today and it was running worse than before. The vehicle is a Saturn Outlook 2007 with 135,000 Km that is in showroom condition. If neither the parts store nor the battery disconnection helps, I will help you figure it out. Would only do it over 2400 rpms, or when you got real heavy on it.
So they pluged it back in. New plug replaced, running like silk. Scan tools come in various degrees of sophistication. So, a typical trouble code looks like this: P0102. It was on already, but that was just an O2 sensor. Plug wires really do not last that long, they ussually do not last as long as spark plugs, even though people ussually replace plugs more often then wires, that's because they are so cheap Yea, honestly, I have changed the plugs recently, but not the wires, I never knew they didn't last as long as the plugs. It'll be a good idea to Google the code along with information about your specific vehicle because this could change depending on the model.
If that is fine also, then I would do a compression test to see if there is an internal failure in the engine causing this. Replace cap and rotor with a… If you look at it you will see a vacuum line hooked to it, while the engine is running unplug it and the engine sound should change. I'm working on trying to fix my issue, but I think I've got it. Thanks for all the input guys. An engine needs three things to run: fuel, air, and spark. Have a certified technician and isolate why the check engine light is on and flashing. The problem can be with a fusible link, a blown control circuit fuse, or the alternator itself has failed.