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Secondary Smog Air Pump for Oldsmobile Intrigue Aurora 3.5L / Cadillac Deville 4.6L 12568795 19515548
What is a Secondary Air Pump?
The secondary air injection pump (also referred to as a smog pump or SAI pump) is responsible for lowering the number of carbon emissions that come out of the tailpipe of a vehicle. This is necessary since a vehicle engine is never 100% efficient in the combustion process.
What Does a Secondary Air Pump Do?
The pump lies after the exhaust manifold and before the catalytic converter of the vehicle and it can reduce carbon emissions by pumping fresh air from outside into the exhaust stream. By the time fumes leave the tailpipe, there are fewer hydrocarbon pollutants in them. This promotes a safer environment by cutting down on air pollution outside.
Aftermarket Replacement No.:
- GM 12568795
- GM 19515548
Use for the following Vehicles :
- 2000-2004 Cadillac DeVille 4.6L V8
- 2000-2002 Oldsmobile Intrigue 3.5L
- 2001-2003 Oldsmobile Aurora 3.5L V6 /4.0L V8
Top 5 Bad Secondary Air Injection Pump Symptoms
1) Check Engine Light
One of the early symptoms of a bad secondary air injection pump is the Check Engine warning light turning on. The engine control unit can automatically detect when the secondary air injection pump has a problem.
2) Failed Emissions Test
if you have a bad secondary air injection pump, then it means your emissions system will be allowing too many hydrocarbons to be released into the atmosphere. If you happen to live in a state which requires emissions testing, you will fail the test if your secondary air injection pump is bad.
3) Weak Acceleration
A faulty secondary air injection pump will cause problems for the air-to-fuel ratio in your internal combustion engine. If this ratio is too lean (not enough fuel), then your engine will have trouble generating speed whenever you step on the gas pedal.
4) Engine Stalling
You may be driving normally and then suddenly experience engine stalling or hesitation in your vehicle. A secondary air injection pump that is wearing down can cause inconsistent power gaps from the engine.
One minute the power may be fine, and the next the RPM drop too much and the engine shuts off. If the pump is not replaced, the engine may continue to stall at the worst possible times.
5) Low Idle
When your engine is idling, check the tachometer and see what the current RPM is. The normal RPM of an idle engine is somewhere between 600 to 1,000 RPM. But in situations when the secondary air injection pump is not working, you can expect the RPM to drop. This may cause the car to vibrate or even stall as noted above.
If you’ve already experienced engine stalling, poor acceleration, and a check engine warning light, then you need to have the secondary air injection pump checked out immediately.
Attention
- Please confirm the part number and vehicle models before order.
- Meet and extend automotive performance.
Correy
2025-08-18 12:39:22
Great price and perfect fit for 2001 Aurora.
Jennifer Allen
2025-05-19 15:56:14
This air pump has parts that will need to be moved from your old pump to this one. The inlet nozzle you see in these pictures are one of those items. You can pry it off of the old pump. This nozzle housing has 4 slots in it that double barbed clips fit through to hold it against the bottom of the pump. Some of those clips are probably going to break off the new pump housing. I was careful and 2 out of 4 still broke. They can also break after you install the pump on the car. The best way to hold the inlet nozzle housing on to the pump it to use tie wraps. You can see the first on I put on in the pictures. You'll need at least 2. Even if none of the clips break, use the tie wraps. It's not worth chancing they break later. Also, you'll probably have a really hard time removing the nuts that hold the pump in the support bracket. There's 3 of them. They're on rubber isolators. I was only able to get one off, so I just cut the rubber isolators with tin snips and made my own later. Kind of a pain. On the plus side, the pump is pretty quiet and this is the least expensive way to go. If you're thinking this isn't worth it with all the hassle, I'll just live without a pump, and don't need to pass emission testing, you're going to the end up really lowering the life span of the catalytic convertor. If you have any mechanical ability you can install this.
jeff
2025-03-09 18:22:10
Worked good
don kentner
2025-02-01 10:20:04
perfect fit and on time free delivery! It is however kinda noisy at times.....
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