What causes an air injection pump to fail?

While air pump failures do occur, it should be noted that pump failures are almost always caused by corrosion that derives from water or moisture in exhaust gas that finds its way into the pump enclosure.

Is the Toyota 5.7 a good engine?

The Toyota 5.7 V8 is one of the best engines that can be found in a full-size pickup truck or SUV. Toyota has used it for the last 14 years for good reason: It offers both reliability and great performance figures. This engine’s only real drawback is its lack of fuel efficiency.

Does secondary air pump run all the time?

During a cold start, the secondary air pump may only be in operation for a maximum of 90 – 120 seconds. The secondary air pump is not designed for continuous use!

Does the tundra have an air injection system problem?

Tundra Headquarters first ran an article “ Tundra and Sequoia $4000 Air Injection System Problem ” in 2010 when the stories of outlandish repair costs to the nonessential system began flooding forums and blogs.

What was the code for the 2013 Tundra secondary AIP failure?

First post – stoked to own a Tundra! But after 3 months of ownership on a 2013 4.6L 4×4 Tundra, had the secondary AIP fail. The official codes it threw were P1604 (startability malfunction) P1605 (rough idling), P2440 (secondary air injection system switching valve stuck open Bank 1) according to Toyota dealership.

What causes a Toyota Tundra to go into limp mode?

Even though the air injection system is non-essential, it’s failure can trigger the engine computer to force the vehicle into limp mode. Once your Tundra is in limp mode, you’ll see flashing lights on the dash and have very little power.

Are there any problems with the 2nd Gen tundra?

Discussion in ‘ 2nd Gen Tundras (2007-2013) ‘ started by jtx0741, Feb 27, 2019 . Turned on the truck and the 4lo, check engine, and trac off lights were all on. After looking online I saw it’s a pretty common problem on Toyota with the secondary air injection pump seizing.