Problem Reports

Cadillac STS

Report: Rear Axle Pinion Seal May Leak

Cadillac STS Problem

8 Reports

Me Too

Model Years Affected: 2005, 2006, 2007, 2008, 2009

Average Mileage: 41,440 mi (21,000 mi - 73,000 mi)

The rear axle pinion seal may leak causing fluid loss and possible internal rear end damage. Replacing the faulty seal will commonly correct this concern.

Add to My Checklist

Find a Shop

Follow this Problem Report Unfollow this Problem Report

Visitor, 2009 Cadillac STS

just brought car , only put @ 100 miles on it and found little drop of oil on garage floor it came from rear axle its at dealership now didnt have chance to purchase extended warranty hopiing they will fix it

Flag This

Like0
Visitor, 2005 Cadillac STS, 21,000 mi

Bought this car used with 18000 miles on it, and the rear pinion seal let go shortly after that. The selling dealer replaced it, and so far, at 27000 it is still OK. However, the rear end hums between 35 and 50 mph.

Flag This

Like0
Visitor, 2009 Cadillac STS

just brought car , only put @ 100 miles on it and found little drop of oil on garage floor it came from rear axle its at dealership now didnt have chance to purchase extended warranty hopiing they will fix it

Flag This

Like0
Visitor, 2005 Cadillac STS, 21,000 mi

Bought this car used with 18000 miles on it, and the rear pinion seal let go shortly after that. The selling dealer replaced it, and so far, at 27000 it is still OK. However, the rear end hums between 35 and 50 mph.

Flag This

Like0

Related Items:

Do shaft seals on trans and cv boots need to be changed?
Leaking trans fluid on both sides around cv boots.
Q&A > Cadillac > 2005 Cadillac STS
69,000. could rear brakes and drums really be bad already?
is it possible that my 2005 cadillac sts needs rear brakes and drums @ 69,000 miles? i am heari...
Q&A > Cadillac > 2005 Cadillac STS
coolant leak
replaced water pump twice, replaced gasket, still have leak
Q&A > Cadillac > 2006 Cadillac STS
what is vacuum leak on a 2005 cadillac sts and how expensive is it to repair
is this the same as an evaporated emmissions leak
Q&A > Cadillac > 2005 Cadillac STS
rear rotor removal
cant seem to be able to get rear disc rotor off whats the trick to this
Q&A > Cadillac > 2006 Cadillac STS