Idle problem/whistling
03-05-2009, 11:43 PM
#1
10 Second Club
Thread Starter
iTrader: (13)
Join Date: Mar 2006
Location: Baytown, TX
Posts: 227
Likes: 0
Received 0 Likes
on
0 Posts
Idle problem/whistling Wanted to run this by you guys and see what you thought.. I've got a loud whistling under the hood of my car.. gets louder with RPM. Also, sometimes after I decel and am sitting at a light, it idle's really high (around 2k) for a minute before settling back down.
Vacuum leak?
Vacuum leak?
03-06-2009, 08:32 AM
#3
Launching!
iTrader: (4)
Join Date: Nov 2007
Location: Ft. Worth, TX
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
definately sounds like a vacuum leak, take a can of brake parts cleaner (de-natured alcohol) while it is idling high, sparay it all around the intake and vacuum hoses, you will know when the engine sucks it in, easy way to find the leak.
03-06-2009, 11:19 AM
#4
10 Second Club
Thread Starter
iTrader: (13)
Join Date: Mar 2006
Location: Baytown, TX
Posts: 227
Likes: 0
Received 0 Likes
on
0 Posts
Car has a brand new LS6 PCV conversion.. so I can see the tube and it's not that. I'm pretty sure it's leaking around my FAST intake somewhere.
Trending Topics
03-06-2009, 02:38 PM
#9
My car also has a loud whistling noise, but it seems that it is coming through my factor speakers. I am not sure if the alternator is causing rf interferenece or what is actually going on, but its very annoying. Have any of you guys had RF interference using msd wires?
03-06-2009, 03:22 PM
#10
Launching!
iTrader: (4)
Join Date: Nov 2007
Location: Ft. Worth, TX
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
never had any rf with msd wires, you might look and make sure you don't have part of the covering burnt off of one by the headers. You also may try running a good ground to the engine and to the body to see if that eliminates any of it
03-06-2009, 03:39 PM
#11
Teching In
iTrader: (9)
Join Date: Oct 2007
Location: Spring TX
Posts: 44
Likes: 0
Received 0 Likes
on
0 Posts
After i installed my ls6 pcv my car idles high also and it whilstles somtimes while accelerating. It usually idles around 850 rpm and when im rolling and put the clutch in it likes to sit around 1000-1100rpm untill i come to a stop then it settles back to 850 or so. I tried the brake cleaner thing but had no luck. Damn car has had idle issues ever since my o2 extension got torn up and caused a fuse to blow. After i replaced the fuse, o2 extension, and fixed all known vaccum leaks it still idles a little high. I think i have a small leak around the small vaccum line on the back of the intake b/c it sounds like the whistle is coming from the back of the motor. Id pull the intake off and inspect the gaskets and the small vaccum line. Ive heard that vaccum line is easily damaged and some people claim that you arent suppose to re use the intake gaskets.
03-06-2009, 05:14 PM
#12
After i installed my ls6 pcv my car idles high also and it whilstles somtimes while accelerating. It usually idles around 850 rpm and when im rolling and put the clutch in it likes to sit around 1000-1100rpm untill i come to a stop then it settles back to 850 or so. I tried the brake cleaner thing but had no luck. Damn car has had idle issues ever since my o2 extension got torn up and caused a fuse to blow. After i replaced the fuse, o2 extension, and fixed all known vaccum leaks it still idles a little high. I think i have a small leak around the small vaccum line on the back of the intake b/c it sounds like the whistle is coming from the back of the motor. Id pull the intake off and inspect the gaskets and the small vaccum line. Ive heard that vaccum line is easily damaged and some people claim that you arent suppose to re use the intake gaskets.
