New noise from engine - Page 2 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 12-07-2009, 09:12 PM   #11
Registered Member
 
VetteOwner's Avatar
 
Join Date: Mar 2007
Posts: 1,546
Country: United States
hmm yes all good suggestions so far.

ive heard powersteering pumps make weird noises especially when it sucks up a bubble (low fluid)

could be belt, could be alternater

somehting else it could be since you say it does it and goes away with temps is a vacuum leak, partially cracked hose can cause a whistle or a whine sometimes, or it could have popped off. this would be my best guess.

its obviously somehting engine driven or engine itself so just check anything that roatates
__________________

VetteOwner is offline   Reply With Quote
Old 12-07-2009, 09:25 PM   #12
Registered Member
 
GasSavers_JoeBob's Avatar
 
Join Date: Oct 2007
Posts: 698
Country: United States
A leaky vacuum hose? I had a somewhat similar noise in the Geo, and it turned out to be a collapsed vacuum hose, vibrating.
__________________

__________________
"We are forces of chaos and anarchy. Everything they say we are we are, and we are very proud of ourselves!" -- Jefferson Airplane

Dick Naugle says: 1. Prepare food fresh. 2. Serve customers fast. 3. Keep place clean.



GasSavers_JoeBob is offline   Reply With Quote
Old 12-08-2009, 12:02 AM   #13
Registered Member
 
VetteOwner's Avatar
 
Join Date: Mar 2007
Posts: 1,546
Country: United States
Quote:
Originally Posted by JoeBob View Post
A leaky vacuum hose? I had a somewhat similar noise in the Geo, and it turned out to be a collapsed vacuum hose, vibrating.
yea sucks in air in small cracks causes a hell of a noise or can do what you said. kinda like the ol blade of grass between your thumbs
VetteOwner is offline   Reply With Quote
Old 12-08-2009, 03:29 AM   #14
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
Quote:
Originally Posted by VetteOwner View Post
kinda like the ol blade of grass between your thumbs
My wife described the sound exactly that way.
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 12-08-2009, 04:35 AM   #15
Site Team
 
Join Date: Dec 2006
Posts: 656
Country: United States
Quote:
Originally Posted by theholycow View Post
That's two votes for alternator
Make that three. I'm not guaranteeing, but as best I can tell with the poor quality recording and playback it sounds like an alternator.

And while we're at it, add one vote for forced induction. A supercharger on that would be fun.

-BC
__________________
Think you are saving gas? Prove it by starting a Gas Log, then conduct a proper experiment.
bobc455 is offline   Reply With Quote
Old 12-08-2009, 07:40 AM   #16
Site Team / Moderator
 
Jay2TheRescue's Avatar
 
Join Date: Sep 2008
Location: Northern Virginia
Posts: 4,657
Country: United States
Location: Northern Virginia
Quote:
A supercharger on that would be fun.

-BC
CORRECTION: A supercharger on that would be a lot of fun.
__________________






Jay2TheRescue is offline   Reply With Quote
Old 12-14-2009, 06:45 PM   #17
Registered Member
 
kamesama980's Avatar
 
Join Date: Nov 2007
Posts: 742
Country: United States
Location: Columbus, IN, USA
Send a message via AIM to kamesama980 Send a message via Yahoo to kamesama980
something driven by the belt. Most likely the alternator.
__________________
-Russell
1991 Toyota Pickup 22R-E 2.4 I4/5 speed
1990 Toyota Cressida 7M-GE 3.0 I6/5-speed manual
mechanic, carpenter, stagehand, rigger, and know-it-all smartass
"You don't get to judge me for how I fix what you break"
kamesama980 is offline   Reply With Quote
Old 12-14-2009, 07:05 PM   #18
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
I happened for a few more days but never dependably enough that I could stop and touch stuff with the mechanic's stethoscope while it was still happening. It hasn't happened at all in a few days.

I guess I'll have to wait for it to return and get worse before I can diagnose it.
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 12-14-2009, 10:18 PM   #19
Registered Member
 
GasSavers_JoeBob's Avatar
 
Join Date: Oct 2007
Posts: 698
Country: United States
The vibrating vacuum hose problem I had came and went in a similar fashion...
__________________
"We are forces of chaos and anarchy. Everything they say we are we are, and we are very proud of ourselves!" -- Jefferson Airplane

Dick Naugle says: 1. Prepare food fresh. 2. Serve customers fast. 3. Keep place clean.



GasSavers_JoeBob is offline   Reply With Quote
Old 12-15-2009, 08:59 AM   #20
Registered Member
 
JanGeo's Avatar
 
Join Date: Jan 2006
Posts: 2,442
Country: United States
Send a message via Yahoo to JanGeo
It is the alternator with the bearing running out of lubrication it will make noise when the belt is cold and tighter putting more load on the bearing and once it warms up the lube will move around and quiet it down and the belt will stretch a little. The Alternator is the only belt driven device that is geared up to a higher RPM while everything else is slower or about the same speed as the crank. Check for dust around the bearings as well as any play in the shaft of the alternator then you can loosen the belt and try spinning the alternator by hand and see if it feels a little bumpy - that will tell you right away.

A far stretch would be the starter motor gear not returning from the flywheel.
__________________

JanGeo is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Incorrect Milage Calcuatlion PatM Fuelly Web Support and Community News 4 07-17-2009 08:21 PM
ECT Analyzer/manual TC lockup GasSavers_Bruce Transmissions and Running Gear 60 04-01-2008 11:37 AM
How far do you drive daily? OdieTurbo General Fuel Topics 56 03-31-2007 02:49 AM
State of the Union address touches on "oil addiction." Matt Timion General Discussion (Off-Topic) 31 02-06-2006 04:38 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 01:12 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.