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
This 1994 P30 should be OBD1. How were the codes pulled and what were they? This Listing
shows several EGR codes. Hopefully replacing EGR will clear any/all of them.
Notice there is a Vehicle Speed Sensor (VSS) and it too can throw a code.
I mention VSS because some automatic transmissions of this vintage would shift 1-2-3 but not into OD/4 if VSS had failed.
shows several EGR codes. Hopefully replacing EGR will clear any/all of them.
Notice there is a Vehicle Speed Sensor (VSS) and it too can throw a code.
I mention VSS because some automatic transmissions of this vintage would shift 1-2-3 but not into OD/4 if VSS had failed.
