Problem Description and Possible Solution
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.
Average mileage: 110,058 (10,000–194,000)
47 people reported this problem
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.
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?
p0401 code is on
pump is bad
replaced still light came on
I replaced the pump 3 times , something else is causing the water to be injested into the pump
same problem code shows air injection pump troble.. why does GM not recall and fix
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 It will not be published in the Labor Time Guide.
replace secondary air pump twice 3 months later same problem so what is it that gm not telling about this problem
Air pump got water in it and froze over the winter
GM DEALER STATED PROBLEM WAS SECONDARY AIR PUMP.....WHICH WAS NOT UNDER THE GM VALUE GUARD WARRANTY....
COST $ 599 FOR PARTS AND LABOR........GM GUARANTEES REPAIR FOR 12 MONTHS OR 12,000 MILES, WHICHEVER COMES FIRST. 14 MONTHS LATER......CHECK ENGINE LIGHT CAME ON....INDICATING IT WAS THE SECONDARY AIRPIMP...
GM REFUSED TO REPLACE IT UNDER THE WARRANTY AS IT WAS OVER THE WARRANTY PERIOD.....GM DEALER WOULD REPLACE IT FOR ANOTHER $ 599.....HOWEVER.....A MONTH WENT BY.....CHECK ENGINE LIGHT WENT OUT....WENT BACK TO SAME DEALER'S SERVICE DEPT......WAS OLD THAT THE VENT VALVE MUST HAVE BEEN STUCK AND GOT RELEASED.......
WHY GENERAL MOTORS, THAT HAS SUCH A VAST NUMBER OF PROBLEMS WITH THE DECONDARY AIR PUMP DOESN'T LIST IT
ON THEIR RECALL LIST TELLS ME THIS UNIT WASN'T PROPERLY DESIGNED...AND AS A RESULT OF PERMITTING RECALLS
GENERAL MOTORS DECIDED TO LET THE CUSTOMER PAY THE HEFT BILL.......
PUMP ONE TIME VALVE ANOTHER
Fan turns non 30 sec at cold start then would screech know fan does not turn on screeched about 2 months
Spent $800 to replace secondary air injection pump (that including the relocation kit) for my 2005 DeVille w/105k.
16 months later same problem as before, water has entered the pump and it whines like a banshee.
Anybody else experienced this?
Replaced pump for 450 dollars
I have a.i.r problem and want to eliminate this system all together. Ive seen other 3100 emgine without it.
I've also replaced the air pump, including the intake relocation. The light came back on, there was water in the pump, again. I think it may be a faulty secondary air injection valve (check valve) allowing water to get sucked into the system.
replaced with reman pump. failed again at 128000
Sam Swope Cadillac did not get it fixed wanted $1000 to fix.
it first started with the secondary air pump winding up very fast so changed it and the next pump did the same thing one year later. The third pump froze up 6 months later had water in it. On the fourth one now only a month yet. Need the use the retrofit inlet kit I guess. Not wanting to spend the extra money for the retrofit.
Check engine light comes on