I have a 1999 expedition 5.4 the same motor as the 98 . you will need metric socket's 1/4 " drive and a 3/8 " drive with a deep 10 mil. socket . also a large adjustable wrench and a pipe to fit over the adjustable ( as a breaker bar ) take off the throttle body cover , disconnect the EGR pressure switch , (I HADE TO REPLACE THE PRESSURE SWITCH ALSO ) there are two nuts holding that on , remove , there is one bolt on top holding the black bracket on , remove . Take the adjustable wrench and undo the large nut on the EGR valve , this is where the deep socket comes in undo the two remaining bolts and remove the EGR valve , clean the surface very good . Use throttle body cleaner and clean the inside good . seal gasket and repeat . I hade the check engine code reset , and my gass mileage inproved .
A 1998 Dodge Ram does not have EGR.
That's your EGR valve flow is insufficient. Replace the EGR valve.
Its under the EGR on the block ya. follow a hose from egr to vsv from underside of car
take the EGR valve off and spray carb cleaner in the egr valve and in the port. This will some times work as it gets plugged up
There isn't a EGR on your 98. The last year that offered that was 90. There isn't a EGR on your 98. The last year that offered that was 90. There isn't a EGR on your 98. The last year that offered that was 90.
After removing an EGR valve from the vehicle, the valve can be flushed with carburetor cleaner. If the valve still sticks then a replacement will be needed.
Code P1491 Means: EGR Valve Lift Insufficient Detected EGR Valve needs to be replaced
It's bolted right on top of the egr valve which is on the back of the engine under the throttle body there will be a small vacuum line going into where the egr valve bolts into the intake
if you look on your intake, right next to the firewall the egr valve is the circular diaphragm that on my 98 sport has a green wire with a black boot leading through the firewall and attached to it. replacement consists of removing the two bolts holding it and putting the new one in its place.
I don't know about the 96', but for the 98' and 2000 it is located on the top of the valve cover on the passenger side near the back. Just pull the hose out and replace the valve on the end. .
It should. Look at the EGR valve; it's on the drivers side of the head. If the EGR valve is the same, everything else should be easy to exchange.