Noise on start up

Northernsoul79 · #1 (**permalink**) 11-18-2009, 07:53 AM

My car makes a whining noise very badly when i first start up the car. It seems to happen more after I haven't driven the car for a few hours. Like early in the morning. It is a 2004 jetta 1.8t. My car will also jerk once in a blue moon and then it's fine. I have connected the ODB reader and have recieved no codes. Now it seems to happen when it's cold outside. Right now it's not a major issue but it obvioulsy could lead to something so if anyone knows when this is or possible be please let me now!

TTTurbo1.8T · #2 (**permalink**) 11-18-2009, 11:08 AM

Next time you post, use the search function first. This has been covered a thousand times.

It is your secondary air pump/injection system for emissions control. It's useless and does nothing important...just let it run till your idle dies down and it turns off.

Northernsoul79 · #3 (**permalink**) 11-18-2009, 12:02 PM

I did a search and there wasn't definite answer. That's why I asked the question, maybe someone had determined 100 percent for sure what it was. Anyways can the secondary pump breaking down lead to other problems?

TTTurbo1.8T · #4 (**permalink**) 11-18-2009, 08:14 PM

I doubt it...like I said it's just for emissions...and who cares about those

Northernsoul79 · #5 (**permalink**) 11-19-2009, 08:59 AM

Ok thanks for your help. I think I'm gonna get my car checked out anyways because the noise annoys the hell out of me. Also I want to make sure its just that secondary pump and nothing else.

Pssst...passed you · #6 (**permalink**) 11-19-2009, 09:42 AM

Sometimes peace of mind it priceless...

i think it is the Sec air pump too...

gneza · #7 (**permalink**) 11-19-2009, 09:47 AM

could be the starter as mine has started making a scream when i startup and then it goes. i have been told it was a washer on the starter that has worn but i am not too sure!!!

Northernsoul79 · #8 (**permalink**) 11-19-2009, 11:13 AM

I've actually been told it could be the starter also, but I have a hard time believing that. My car never has an issue starting up. After reading many threads on this issue i have come to conclusion it must be my sec pump, but it can be anything.

fubardub · #9 (**permalink**) 11-19-2009, 04:25 PM

it is the SAI. i have a video of my 1.8t on a cold start i could post up. it is noisey as hell. sounds like a jet turbine. my neighbors hate me. i have to leave the house at 4:30am.

Northernsoul79 · #10 (**permalink**) 11-19-2009, 05:30 PM

Quote:

Originally Posted by fubardub

it is the SAI. i have a video of my 1.8t on a cold start i could post up. it is noisey as hell. sounds like a jet turbine. my neighbors hate me. i have to leave the house at 4:30am.

LOL yea post it. I want to hear if it sounds like mine on start up.

fubardub · #11 (**permalink**) 11-19-2009, 08:25 PM

video as promised. i need to get more vids of the car.

You Tube

05GTI1.8T · #12 (**permalink**) 11-19-2009, 11:44 PM

what exhaust r u running on that?

Northernsoul79 · #13 (**permalink**) 11-20-2009, 07:34 AM

LOL your car sounds like a beast! My car doesnt sound like that though. It's more of an annoying belt sound. At least yours has some balls to it on startup.

mcrow · #14 (**permalink**) 11-20-2009, 10:51 AM

is your timing belt rubbing on the timing belt cover?

Northernsoul79 · #15 (**permalink**) 11-20-2009, 11:51 AM

I'm not sure but I can't see that causing the car to jerk once in awhile. But I could be totally wrong. I'm definitely going to take it to a mechanic just to decipher exactly what's the problem.