Water may be drawn into the secondary air injection (AIR) pump causing the pump to fail and the Check Engine Light to illuminate. Our technicians tell us there is a kit available from General Motors to relocate the air intake for the pump which should prevent future damage from water intrusion.
Car Problem Reports
Cadillac DeVille Water Drawn into Secondary Air Injection Pump May Cause Pump to Fail
Cadillac DeVille Problem
Average Mileage: 101,361 mi (10,000 mi - 190,000 mi)
The dealer told me secondaryair pump was bad. I found the air intake hose disconnected both ends. I installed new pump and intake cleared the code and the next cold start the light came back on. Now what?
Visitor, 2004 Cadillac DeVille, 75,000 mi
Water has filled the air pump and it has been replaced 3 times. It now has filled for the 4th time and no one seems to be able to tell me where the water is coming from.The pumps are Delco pumps I'm ready to trade the car.
Visitor, 2003 Cadillac DeVille, 127,000 mi
Technical Service Bulletin 02-06-04-024G covers this problem. I was charged $249 for the pump and $250 for the labor. I will be returning to the dealership because it appears I was overcharged for labor. According to the TSB, the labor rate should be 0.9 hrs, which wouldn't approach the $250 I was charged.
The bottom of the TSB states:
Secondary AIR injection Pump and Hose Assembly - Replacement
*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.
Visitor, 2003 Cadillac DeVille, 121,000 mi
same problem code shows air injection pump troble.. why does GM not recall and fix
pump replaced twice.
Visitor, 2004 Cadillac DeVille, 170,000 mi
I replaced the pump 3 times , something else is causing the water to be injested into the pump
Visitor, 2001 Cadillac DeVille, 95,000 mi
Replaced pump for 450 dollars
p0401 code is on
pump is bad
replaced still light came on
Visitor, 2002 Cadillac DeVille, 25,000 mi
pump replaced....fuse replaced....work done at dealer...told it was out of warranty, I had to pay for the repairs!!!
Visitor, 2002 Cadillac DeVille, 120,000 mi
i have changed thtat air pump 3 times they need to do something with this