Why is my check engine light on and blinks? Vehicle shakes on 2001 Lincoln Navigator

Shakes when idling and engine light blinks when I get on the highway.

by in Crosbyton, TX on February 21, 2014
3 answers 16 comments
ANSWER by on February 21, 2014
Ignition misfire,,scanner will show problem cylinder.
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COMMENT by on February 21, 2014
Cylinder 6 misfire?
COMMENT by on February 21, 2014
That's the reason the light blinks and vehicle shakes!!
COMMENT by on February 21, 2014
What do I do?
COMMENT by on February 21, 2014
What do I do?
COMMENT by on February 21, 2014
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.
COMMENT by on February 21, 2014
I took it to our local place here they put the tester on and said that nothing but that showed up
COMMENT by on February 21, 2014
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!
COMMENT by on February 21, 2014
Ok Thank you. By the way how much do you think they will charge me to do that?
COMMENT by on February 21, 2014
Cant say,,depends on how long it takes for diagnosis and which part is the problem.
COMMENT by on February 21, 2014
Ok Thanks!
COMMENT by on February 21, 2014
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!!
COMMENT by on February 21, 2014
Okay
COMMENT by on February 21, 2014
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..
COMMENT by on February 21, 2014
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!
COMMENT by on February 22, 2014
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.
COMMENT by on February 22, 2014
It really dont smell like fuel it smells like exaust or firecrackers
ANSWER by on March 24, 2014
I just had the same problem with my 2001 town car. Misfire cylinder 5 and when I pulled the coil off the plug it was full of engine coolant. I dried the coil boot and spring and changed the plug ( whoever did plugs last was smart enough to use never sieze on them) misfire is gone. I then added leak repair to radiator for gasket repair in case there is a coolant leak. Cost me $17.00 for the total repair but that was doing it myself, it's actually quite easy it took me about twenty minutes. Good luck.
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ANSWER by on April 27, 2015
Just wanted to add to the list, have similar problems with car jerking when it gets to about 40-50 mph. Also the check engine light flickers. I have a 2005 Lincoln Navigator and took it to a ford dealer. Bad coils 5 and 6 that I had to replace.