Blinking check engine light
So the light started blinking and stayed on under hard acceleration. It's a 2008 f350 with 6.8. Truck didn't seem to be lagging in performance. Tomorrow I'll go to autozone and see what code it threw...
Forum Discussion
stew47 wrote:
Well I notice eBay has complete tune up kit with cops, plugs, fuel filter, air filter, pcv valve for 300$. Maybe it's just easier to do at home i dont know. Is there a good place to get the plug socket that's magnetic and long enough extension?
Only use Motorcraft brand COPs, they are expensive BUT they are much better quality and will last much longer than the cheap generic brands..
Been there, done that. Bought a kit of 8 generic COPs from Amazon for a mere $50.. Less than one year of driving ONE of the generic COPs died.
Typically you buy one brand new Motorcraft COP, and substitute it for one of the existing ones you have. Keep track of where the new one is and continue to swap coils until you eliminate the problem.
Typically only ONE COP will go bad, not very often will more than one go bad so buying ten new coils is not needed.
You can get real deal Motorcraft COPs from Amazon for around $54 each..
Air filter, fuel filter can be had at your local Walmart shouldn't cost more than $30 for both.
Plugs, get Motorcraft brand, those are the best for this job.
For the plug socket, use standard plug socket (which should have a rubber insert to hold the plug) with a 6" extension..
Use black plastic tape to hold the socket to the 6" extension..
You will need a variety of other extensions and perhaps a universal joint for some of the positions to get around wiring and such.
Some engines may have the airfilter box on top of the engine above the Throttle body, you may need to remove the air filter box to get to the rear plugs.. Be careful, there are some vacuum lines on the box.
You may need to disconnect the MAF (Mas Airflow Sensor) if located on the air filer box. The plugin is stubborn and can be difficult to get the connector off.
For some plugs, you may need to disconnect the injector wire harness, just remember to plug injector harness back on when done with that plug..
Before removing the plug, shoot a blast of air into the plug well, this will remove any dirt which may have fallen into the well when you removed the COP and boot.
Some Boots MAY get stuck in the well, you might wish to consider buying a couple of new boots (can get at places like Autozone).
