HELLo ALL I'm a noob so any info will be greatly appriciated. My truck is a 2003 cummins 2500 4x4 the PROBLEM I'm having is when i shift into gear the trans goes in gear but the indicator is not showing anything (the circle around the gear its in) it does appear in P and N but not in R D321 but it does go in gear and the trans will not shift .What I have done to fix it so far is change fluid ,filter ,govenor pressure sensor and silenoid ,range selector switch on the trans and PCM . Is there any sepperate comp for the trans? THX in advance for any help!!!!!!!!!!!!

 

my 06 did that only it wouldnt do it for the park light up, worked in all other gears, i had to adjust the shift linkage, you could try that...

 

thx klickster I will check in to it .