Maintenance exercise.
New plugs (OEM AC Delco)
Air filter
Pulled a P0106 code. Replaced MAP sensor
Replaced MAF sensor
Replaced transfer case speed sensor
Replaced serpentine belt
Changed Oil / filter - Mobil 1 5W-30, PF61E
Changed transfer case fluid (GM OEM Recommended fluid)
Replaced TB with Supermodulation Ported / Polished TB
Changed differential oil (front & rear) Royal Purple 75W90
H3 has a 153,000 miles and runs great!
Next on the list is to recover the cloth seats in leather. Got a kit from LeatherSeats.com. Very high quality and craftsmanship. Looks just like the factory leather seat right down to the piping. Can't wait to get them installed.
