Can bad EGR cause trnsmission problems?
I have the MH listed in my signature i.e. Chevy 454 P series with I believe the 4L80E transmission. Recently experienced problem with not shifting into overdrive and intermittent Check Engine light. ...
Forum Discussion
gm egr codes can set 2 ways one is by computer of the vehicle looking for reistance of egr soliniod second is by when egr valve opens intake manifold vacuum drops that's what computer is looking for again if cat. converter is clogged manifold vacuum dos not drop as quick and could set that code
