Question about Lincoln Navigator
check the metal line that comes off the exhaust and make sure it isnt plugged with carbon. also remove the egr and check the port and see it's clogged as well
Posted on Nov 17, 2009
yes it is something to do with the egr
it could be the egr, dpfe, vacuum leak or wiring
best bet is to bring it to the dealer to have it properly diagnosed
so your not changing unnecessary parts
Posted on Jan 31, 2010
The EGR valve is towards the firewall and looks like a flying saucer with either a vacuum hose or electrical connectors attached to it.EGR stands for exhaust gas regulator. So this item has to be connected to your exhaust manifold. During engine operations in order to cool off combustion temperatures this valve opens and permits exhaust gases into combustion chamber.
Your code is saying that its passage way is clogged ,the valve is either stuck closed ,the vacuum or electrical system that control it are defective. I recommend you get the repair manual for this vehicle there are several types of EGR valves and the testing procedure are different for each one. If your good with a voltmeter than getting the manual for this vehicle is gonna save you a fortune.
The easiest thing to do when you locate the valve is to remove it, use gun out and spray the passage way it sits on . Then clean the valve itself. If it has a vacuum port hook it up to a vacuum pump and see if it holds vacuum ( about 3-5 hg's) and its pintel moves. if it does than valve is ok. Then replace gasket and install valve. If valve has electrical connectors then clean passage and valve replace gasket and install valve.Your gonna have to go to Autozone again to have them erase code before you know for sure you repaired the item. Good luck
Posted on May 19, 2010
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