My Apps has gone bad for the second time in about 30,000 miles and wondering where the best and/or cheapest place is to buy a new one? Checked on Ebay and nothing for the last week. Any help is greatly appreciated.

 

I'm in the same boat. The dealer wants $374 for a new one. That is all i've been able to find.

 

Look in the classifieds here........
https://www.dieseltruckresource.com/...cat=500&page=1
My ad says it's for 3rd gens but I believe all the 24 valves used the same one. It's part number 5303157 for an auto. I think part number 5303156 would be for manual trans trucks FYI.
Check with the dealership to see if that's the part they are trying to sell you..

 

Also, if you pull the black plastic cover off you will see the part number stamped into the aluminum piece inside it...