Decelerating Chirping
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 792
Likes: 19
From: ME
Decelerating Chirping
A small issue I've noticed with my '99 FRC is when I decelerate (MN6) in gear from a moderately high RPM (say 3000 RPM for example) I can hear a chirping noise that I can't really identify. It's either a driveshaft bearing or something like that, or just the serp. belt tensioner. Are there any known issues that are driveshaft related causing a chirping noise? Sorry to be so vague.... Has anyone else noticed this? Thanks for your help guys!
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Servohead
Before you get too wrapped around the axel looking for this noise, there have been issues where the intermediate pipe "H" pipe can make this noise!
Some people discribe the sound as a jingling noise like keys or a chirp. The holes between the two sides of the exhaust that are connected by the H pipe are a little bit bigger than a quarter. The interior diameter of the H pipe is much bigger than that.
Some how the size of the hole and the way the exhaust flows over the hole makes that noise.
This is something to think about.
Bill C
Before you get too wrapped around the axel looking for this noise, there have been issues where the intermediate pipe "H" pipe can make this noise!
Some people discribe the sound as a jingling noise like keys or a chirp. The holes between the two sides of the exhaust that are connected by the H pipe are a little bit bigger than a quarter. The interior diameter of the H pipe is much bigger than that.Some how the size of the hole and the way the exhaust flows over the hole makes that noise.
This is something to think about.
Bill C
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 792
Likes: 19
From: ME
Ok thanks Bill! Definately something to think about. As long as there isn't any popular condition for chirping driveshafts like there is for sticking clutch pedals I'll just leave it be. It doesn't bother me that much. Maybe an X pipe will fix the noise...
