Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Noise heard at the front when car is cold
11-02-2011, 03:38 PM
Post: #1
Noise heard at the front when car is cold
After the 10k service on my 2001 Saturn SL2 (auto transmission), there came a clattering noise under the front hood. It can only be heard when the car is cold (like just started in a cold weather) and when I shift the gear from stop to forward or when I start pushing the pedal to accelerate or the brake to decelerate. The noise cannot be heard when the car is warmed up or going in a steady speed. Does anyone know what could be the cause? Appreciated!
Find all posts by this user
Quote this message in a reply
11-02-2011, 09:19 PM
Post: #2
RE: Noise heard at the front when car is cold
Noises are funny in that you almost need to walk around the car and find out WHERE it is before you can pin things down. Perhaps you can get a friend to help run through what you just described while you stand outside the car and listen. Do it with the hood open so if it's up front you can try to find it before things warm up. Obviously you can't go far with the hood up so start out by trying to see what's going on while parked or just shifting gears with the brake on. If you need to move the car try a quiet street or an empty parking lot... and watch your toes / fingers while things are in motion.
Find all posts by this user
Quote this message in a reply
11-02-2011, 09:33 PM
Post: #3
RE: Noise heard at the front when car is cold
I did the same together with the mechanician from where caused this issue. It sounds from somewhere around the belt and engine. But he said he cannot pinpoint exactly where it came from. I just wonder what can make such noises in this certain conditions (cold car; accelerate/delcelerate or shifting) before I decide where to fix it on my own or go to an auto shop again.

Has anyone seen similar problems before?

(11-02-2011 09:19 PM)Rupe Wrote:  Noises are funny in that you almost need to walk around the car and find out WHERE it is before you can pin things down. Perhaps you can get a friend to help run through what you just described while you stand outside the car and listen. Do it with the hood open so if it's up front you can try to find it before things warm up. Obviously you can't go far with the hood up so start out by trying to see what's going on while parked or just shifting gears with the brake on. If you need to move the car try a quiet street or an empty parking lot... and watch your toes / fingers while things are in motion.
Find all posts by this user
Quote this message in a reply
11-02-2011, 10:21 PM
Post: #4
RE: Noise heard at the front when car is cold
What engine is in the car?
What all was done as part of the service? New Belts? Filters? Hoses?
If you believe the sound was caused by something done on the service, knowing what was done could provide some clues.
Also, is that the correct year and mileage? Most cars average 10k/year. At nearly 11 years old that car should have over 100k on it.

Thanks for using the forum,
Garner

Interested in Mining? Look here: Coal Mining, PA
Visit this user's website Find all posts by this user
Quote this message in a reply
11-03-2011, 01:30 PM
Post: #5
RE: Noise heard at the front when car is cold
Did I say 10k? Oh sorry, it should be 100k service. What I knew is that they replaced my rear break. Anything else I guess was just routine maintenance like refilling oil etc. The engine is 1.9L I4 SFI.

(11-02-2011 10:21 PM)Garner Wrote:  What engine is in the car?
What all was done as part of the service? New Belts? Filters? Hoses?
If you believe the sound was caused by something done on the service, knowing what was done could provide some clues.
Also, is that the correct year and mileage? Most cars average 10k/year. At nearly 11 years old that car should have over 100k on it.
Find all posts by this user
Quote this message in a reply
11-03-2011, 08:07 PM
Post: #6
RE: Noise heard at the front when car is cold
Ahhh, 100k. That sounds more like it.
Rear brake service shouldn't really have anything to do with noises under the hood unless the ABS system is activating. That should sound more like a "Buzzing" or "Whirring" of an electric motor running. I'm not sure where the ABS pump is located on that vehicle. If you think that this could be the problem you could disable the ABS by pulling the fuse to see if the sound stops. Just keep in mind that you will set a computer code by doing that and it will need cleared. You may want to have the computer scanned first. There may already be a code pointing to the issue. You will need to use a "High End" "Scanner" as most "Code Readers" won't access the ABS. Have ALL of the systems scanned, record ALL of the code NUMBERS, post those NUMBERS here for review, and have the computer cleared.

Please keep us posted.

Thanks for using the forum,
Garner

Interested in Mining? Look here: Coal Mining, PA
Visit this user's website Find all posts by this user
Quote this message in a reply
Post Reply 


Forum Jump:


User(s) browsing this thread: 1 Guest(s)