I have a 2008 Honda Civic and I started hearing a loud exhaust sound when I back up and when it is cold. What could it be?

Asked by Nov 25, 2013 at 09:37 PM about the 2008 Honda Civic Coupe DX

Question type: Maintenance & Repair

Started making loud sound under the hood almost like an exhaust sound but not sure. It has gotten worse but it is louder backing up and when starting out. It is a manual shift but shifts easy almost sounds and vibrates like an engine mount.

2 Answers

this is going to require an inspection to determine which parts need replacement...engine mounts are a good guess....get a woodblock and floorjack to see how much travel there is in those mounts~ hopefully will NOT be a cracked exhaust manifold~

1 out of 1 people think this is helpful.
175

I was thinking along the lines of an exhaust manifold as well. Might explain why the vehicle is louder while cold and when the engine warms up the expanding metal will close the gap making it sound...well, not as loud. A very common problem is that bolts tend to loosen up over time and the manifold will just loosen from the engine block. When the vehicle has sat for a while and cooled, see if you can find a wrench of the correct size for the bolts and try to tighten them down starting from the center of the manifold and work your way outwards toward the opposite ends. By doing this you might be able to pinch the manifold down a little tighter and eliminate the sound all together. If this doesn't work, I would suspect a crack and that means replacing the manifold. Good luck.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Honda Civic Coupe Questions

Honda Civic Coupe Experts

#1 deb5deb5deb5deb5deb5
deb5deb5deb5deb5deb5
Reputation 1,550
#2 elmerenzo
elmerenzo
Reputation 1,490
#3 kd5qhr
kd5qhr
Reputation 990
View All

Related Models For Sale

Used Honda Civic
667 Great Deals out of 77,417 listings starting at $1,000
Used Honda Accord Coupe
173 Great Deals out of 10,692 listings starting at $2,200
Used Honda Accord
811 Great Deals out of 81,613 listings starting at $899
Used Ford Mustang
362 Great Deals out of 44,486 listings starting at $1,000
Used Toyota Corolla
873 Great Deals out of 74,424 listings starting at $1,500
Used Toyota Camry
1,091 Great Deals out of 96,268 listings starting at $1,250
Used BMW 3 Series
1,372 Great Deals out of 37,826 listings starting at $1,500
Used Scion tC
105 Great Deals out of 4,074 listings starting at $2,000
Used Mazda MAZDA3
234 Great Deals out of 28,937 listings starting at $895
Used Nissan Altima
1,087 Great Deals out of 82,558 listings starting at $670
Used Nissan Altima Coupe
57 Great Deals out of 1,853 listings starting at $2,800

Used Cars For Sale

2017 Honda Civic Coupe For Sale
7,508 listings starting at $17,509
2016 Honda Civic Coupe For Sale
6 Great Deals out of 3,849 listings starting at $14,995
2015 Honda Civic Coupe For Sale
22 Great Deals out of 623 listings starting at $10,360
2014 Honda Civic Coupe For Sale
20 Great Deals out of 499 listings starting at $9,999
2013 Honda Civic Coupe For Sale
31 Great Deals out of 811 listings starting at $7,995