Shakes when idling and engine light blinks when I get on the highway.
Ignition misfire,,scanner will show problem cylinder.
That's the reason the light blinks and vehicle shakes!!
Well now,, that is another question! Or two!! Possible spark plug, coil on spark plug, injector or wiring problem , vacuum leak etc... it needs to be tested by a mechanic so no money is wasted on parts you dont need.
I took it to our local place here they put the tester on and said that nothing but that showed up
Key word is "mechanic". Dont know the skill level of whom ever checked it but there are test that will confirm the cause of the misfire! Already know which cylinder it is so the hard part is done!
Ok Thank you. By the way how much do you think they will charge me to do that?
Cant say,,depends on how long it takes for diagnosis and which part is the problem.
Welcom! Make sure who ever works on it knows about the possibility of spark plug breakage on this engine!! And is equipped to fix it should that happen!!
There notorious for bad coils ,swap 2 reset then see if comes up on other cyl.I have v.10 ,I just change coil ,but I know I have good plugs and wires..
That makes Sense because plugs were just changed not even a year ago. Do you think I cam drove it like that until next week when I get paid? That blinking light scares me!
If you smell fuel (like a flooded engine) DO NOT drive it! Flashing light usually signals an injector problem. It could be as stated by the other's a spark, coil, wire type of problem., but all I'm saying,if you smell fuel, don't drive it.
It really dont smell like fuel it smells like exaust or firecrackers
I had a similar problem but the coils and computer checked out....I finally found out a common problem that causes the NAV (and similar F-150 trucks) to run this way is a vacuum leak on the "boot" that connects to the PCV valve on the passenger side bank, valve cover. The hole is normally under the metal routing connector, so it's hard to hear or seen...and in my case was intermintant, based on temp. I was getting nearly every lean fuel/catalytic converter/EGR valve error code....it was a pain in the butt to track down the issue. The thing that caught my attention was your comment about the flashing "engine light"...in the NAV at least, this means that the issue is serious, I guess it's trying to say..."Ya see the light....hey you, driver, do you see the light....are you REALLY just going to keep driving....LOOK AT THE FU$&ING LIGHT!!!" The SUV does have a good point, if you let the fuel trim run on lean side and cause the computer to increase the ratio to compensate, it will burn out $3,000 (cost...not installed or retailed) worth of catalytic converters...and they are hard to find if you have the 4X4.