Clicking noise after I turn off the engine

[TXRLU]

Did you piss off any Al Quaeda types of late?

I get the noise even when I'm idle or at speed. I've heard some people have swapped out exhaust and the noise goes away. Maybe it has something to do with peoples' cats crapping out? Hmmmm?!?!?!

[New2saturn]

One more stupid question. What is CAT? I need a list of all the acronyms used on this forum. I am so lost sometimes.

[ptparker]

Originally Posted by New2saturn

One more stupid question. What is CAT? I need a list of all the acronyms used on this forum. I am so lost sometimes.

The cat is your catalytic converter. It breaks down half burnt gas in your exhaust to NO2, CO2, CO and SO2. Basically carbon chains (half burnt gas) are real bad for the enviorment and the 4 gases listed above are just sort of bad.

But you cat slows your car down, because it is a restriction in the exhaust that the engine has to push the gas through. That being said, if you take it out, there are a series of emmissions engine codes that will be set.

[SPredlineAZ]

there is also a clicking from the ecu and what not when you turn key on or off without running the car. i started noticing that one after the ignition switch went out on my car and wouldnt start, now i hear it all the time

[Superman]

That popping noise was one of the first things that worried me about this car. I think it was probably in some of my early posts as well. But, I've decided that if it's gonna pop no matter how hard I drive the car, I may as well drive the crap outta it!!

[ptparker]

Originally Posted by SPredlineAZ

there is also a clicking from the ecu and what not when you turn key on or off without running the car. i started noticing that one after the ignition switch went out on my car and wouldnt start, now i hear it all the time

When you first turn the key to ON, and don't start it, the fuel pump comes on for 3-5 seconds. That is to prime the system so that the car will start easier if it hasn't been run. If the car is cold and/or the temp is really cold, I will turn the car to ON, wait until i hear the buzzing sound come on and go back off before I start the car. It cranks a lot smoother.

[Redn8r3]

hey i have one for you guys, when i turn the car off, about 2 minutes afterward i get a knocking sound, about 4 times "knock knock knock knock" like someones tapping on my trunk. it happens all the time, its definatley not a metal sound it sounds like plastic and definately in the rear of the car!

[ptparker]

Originally Posted by Redn8r3

hey i have one for you guys, when i turn the car off, about 2 minutes afterward i get a knocking sound, about 4 times "knock knock knock knock" like someones tapping on my trunk. it happens all the time, its definatley not a metal sound it sounds like plastic and definately in the rear of the car!

It is probably peices of metal in your muffler starting to cool down. Same issue as the first poster. My header pings a lot when i just turn the car off.

Do you have a stock muffler? Because mine does it, and I have a dynomax super turbo

[Sp00ner]

Originally Posted by ptparker

It is probably peices of metal in your muffler starting to cool down. Same issue as the first poster. My header pings a lot when i just turn the car off.

Do you have a stock muffler? Because mine does it, and I have a dynomax super turbo

It's the trunk monkey noise he's talking about....

[Redn8r3]

yea its a thumping noise not like a ping a real knock!! and i have a squeek in my back driver side seat, only goes away when you sit in it, and it only squeaks when the car vibrates up and down like a pot hole or road vibration ive torn it all apart back there looking for it and found nothing!!!