What to do if your EGR valve is out of Spec?
If it is out of spec., first make sure that the 2 hoses going to the sensor are not ripped, kinked, restricted or disconnected. These hoses go to the EGR tube and there is an orifice in that tube between the locations where the hoses branch out.
Where is the entry port for the EGR valve?
Clean out the entry port. The entry port is where the valve tubes connect to the engine (usually the intake manifold) while the EGR valve is off. Reinstall the EGR valve.
Where is the EGR valve on a Mercury Grand Marquis?
On the ml 350, the EGR valve, when looking at the engine from the front, will be on the right side, near the engine block, toward the front. Look for the telltale shape of the EGR valve. It may be in a sideways position. Where is the EGR valve located on an overhead cam 4.6 V8 Mercury Grand Marquis 1995?
What should dpfe voltage be for EGR valve?
Assuming the EGR valve is ok the engine should begin to stumble and possibly even stall as vacuum is applied to the valve and the pintle opens. Your DPFE voltage should also approach 4.5 volts.
What are the symptoms of a bad EGR valve?
A rough idle upon starting the engine (that is, when the engine is cold) and sometimes at a stop light or while looking for a spot in a parking lot (that is, at low engine speeds in a warmed-up engine). Stalling when the engine idles. Increase in fuel consumption.
Can a new gasket be installed on an EGR valve?
If it’s questionable, install a new one. We recommend installing a new gasket with any repair. Cleaning the EGR valve assembly is a two-step process. It depends on how far you want to go and how much time you have. First, soak the EGR valve in a bowl filled with carb cleaner.
On the ml 350, the EGR valve, when looking at the engine from the front, will be on the right side, near the engine block, toward the front. Look for the telltale shape of the EGR valve. It may be in a sideways position. Where is the EGR valve located on an overhead cam 4.6 V8 Mercury Grand Marquis 1995?
What do I need to unbolt the EGR valve?
Unbolt the EGR Valve Remove the bolts that attach the EGR valve assembly to the engine. If it doesn’t come right off when you have removed the nuts or bolts, it’s safe to give a slight tap with a block of wood or a tiny hammer to loosen it.