Car Questions
RepairPal is your advocate for car care advice and guidance

What is a smog pump and what does it do

(2001 Cadillac DeVille DTS)
in Fort Worth, TX on March 31, 2010
Will a smog pump are a secondary air pump cause your car to run hot? Are what are the symptoms of it going out and what will it do to your car?
Displaying 1 answers & 1 comments
Popular Answer
on March 31, 2010
The secondary air pump is an emissions control device. As the engine is warming up, it emits a lot of unburned fuel into the exhaust system. This is normal for all vehicles. The air pump injects fresh air into the exhaust during engine warm up and it helps to burn up this unburned fuel, thus reducing the amount of harmful emissions from the tail pipe.
This system will generally have little effect on the way the vehicle operates, but it is possible to have some effect if the system is working when it shouldn't, or otherwise not working properly.
on May 29, 2010
where can i fine a primary air injector for 2000 cadillac deville
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Drove the car which was running perfect, parked it in the garage and the next day it would not start, it will only cr...
I just bought this vehicle from my brother in law. The transaction took place over the phone. I knew originally it ne...
Didn't find what you were looking for?