While doing a little research on your vehicle I came across this Technical Service Bulletin(TSB) describing your vehicle's condition. While the extended warranty has run out, It does give you instructions for troubleshooting, repairing, and the part number of the the part that will need to be ordered in order to fix the problem. Please go through it and get back to us with what you are able to find out. I have included it in the diagrams down below.
Images (Click to enlarge)
Saturday, April 20th, 2019 AT 3:40 AM