Recent Topics
Hard Workers
by AirgunSavant
06/30/16 10:55 AM
which kind of vinegar to use?
by bmwjohn
06/30/16 10:53 AM
0% ethanol gas please
by yvon_la
06/30/16 10:17 AM
Motorex Legend 4T
by Junkie
06/30/16 09:56 AM
2ZR-FE Oil filter Comparison
by Tech819
06/30/16 09:45 AM
Andrews AFB
by AirgunSavant
06/30/16 08:55 AM
Luber Finer cut open
by Tech819
06/30/16 08:42 AM
Meguiars wax
by whip
06/30/16 08:02 AM
Weird problem with laptop. Thoughts?
by d00df00d
06/30/16 07:42 AM
Silverado 6.2L Fram TG 3 years and ~45,000 miles
by DriveHard
06/30/16 07:15 AM
Old bike, new engine -synth or dino oil?
by mr_blackstock
06/30/16 06:56 AM
F1 - 2016 Austrian Grand Prix
by gofast182
06/30/16 06:16 AM
Newest Members
MNfarmer33, doublegarage, goatrancher, jameson223, graywolf001
58322 Registered Users
Who's Online
77 registered (AirgunSavant, 2015_PSD, AnthemBassMan, 01rangerxl, 1foxracing, 901Memphis, 7 invisible), 1859 Guests and 13 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
58322 Members
66 Forums
251031 Topics
4114792 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3211617 - 12/09/13 07:11 PM Help me diagnosis this issue!
dja4260 Offline


Registered: 05/16/11
Posts: 889
Loc: Chicago
My wife is having issues with her 2008 Nissan Sentra 2.5 w/ CVT.

It recently became very cold where we live. This is what she described to me over the phone.

When car is cold (temp) or under acceleration the car makes a VERY loud rumbling sound. She compared it similar to the sound that my Harley makes with it's open pipes. She said it's not a grinding noise. No check engine light is on.

My guess is that it's a cracked exhaust manifold?
_________________________
2013 Hyundai Elantra Gt Hatch 6 spd
2008 Nissan Sentra
1997 HD Sportster

Top
#3211627 - 12/09/13 07:21 PM Re: Help me diagnosis this issue! [Re: dja4260]
dja4260 Offline


Registered: 05/16/11
Posts: 889
Loc: Chicago
The first thing she is doing is checking the oil level. I always do it but since I've been gone for 6 months, she paid a local place to change it last week.
_________________________
2013 Hyundai Elantra Gt Hatch 6 spd
2008 Nissan Sentra
1997 HD Sportster

Top
#3211635 - 12/09/13 07:31 PM Re: Help me diagnosis this issue! [Re: dja4260]
dja4260 Offline


Registered: 05/16/11
Posts: 889
Loc: Chicago
Oil level is normal.
_________________________
2013 Hyundai Elantra Gt Hatch 6 spd
2008 Nissan Sentra
1997 HD Sportster

Top
#3211642 - 12/09/13 07:41 PM Re: Help me diagnosis this issue! [Re: dja4260]
cjcride Offline


Registered: 11/06/09
Posts: 1444
Loc: Ontario Canada
Exhaust manifold crack.

Top
#3211657 - 12/09/13 07:55 PM Re: Help me diagnosis this issue! [Re: dja4260]
stroked93 Offline


Registered: 09/24/06
Posts: 216
Loc: midwest
Is this your first winter in the car? Nissan 4cyl are very unrefined and loud in cold temps, I have a couple and love them but they are loud cold.

Top
#3211659 - 12/09/13 07:58 PM Re: Help me diagnosis this issue! [Re: dja4260]
renegade_987 Offline


Registered: 04/07/11
Posts: 1531
Loc: Ankeny, IA
I'd vote for a cracked exhaust manifold
_________________________
2004 F150 189K Valvoline WB/Motorcraft FL-820S
2005 Ford 500 Limited 129K Motorcraft/Motorcraft
1994 Mustang GT Castrol/FRAM



Top
#3211668 - 12/09/13 08:10 PM Re: Help me diagnosis this issue! [Re: dja4260]
Happy Birthday The_Eric Offline


Registered: 03/31/10
Posts: 4738
Loc: Iowa
Have her wait till the car is cold again, then open the hood. Start the car and see if see can isolate the noise to an area. She doesn't really have to know what it is, but if she can give you/us an idea of where it's at, and if it gets worse when revving or not, that would help.
_________________________
2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M

Top
#3211669 - 12/09/13 08:11 PM Re: Help me diagnosis this issue! [Re: stroked93]
dja4260 Offline


Registered: 05/16/11
Posts: 889
Loc: Chicago
Originally Posted By: stroked93
Is this your first winter in the car? Nissan 4cyl are very unrefined and loud in cold temps, I have a couple and love them but they are loud cold.


No, she purchased this car new in 08. We've pin pointed the noise now to the rear of the car. Exhaust gasket or muffler is my guess.

Trust me, the lack of detail is frustrating....

Sounds like it's safe to continue driving until my father can take a look later this week.
_________________________
2013 Hyundai Elantra Gt Hatch 6 spd
2008 Nissan Sentra
1997 HD Sportster

Top
#3211671 - 12/09/13 08:12 PM Re: Help me diagnosis this issue! [Re: The_Eric]
dja4260 Offline


Registered: 05/16/11
Posts: 889
Loc: Chicago
Originally Posted By: The_Eric
Have her wait till the car is cold again, then open the hood. Start the car and see if see can isolate the noise to an area. She doesn't really have to know what it is, but if she can give you/us an idea of where it's at, and if it gets worse when revving or not, that would help.


I've tried. Don't get me started. As described "it's louder the more I push the gas pedal down"
_________________________
2013 Hyundai Elantra Gt Hatch 6 spd
2008 Nissan Sentra
1997 HD Sportster

Top
#3211675 - 12/09/13 08:13 PM Re: Help me diagnosis this issue! [Re: dja4260]
Donald Offline


Registered: 03/21/04
Posts: 16944
Loc: Upstate NY
If it get quieter when the engine warms up then it might be a cracked exhaust manifold.

I had one on my Camry probably for 50K miles. Sold it like that.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2001 Jeep Grand Cherokee Laredo 4.0- sold
1999 Dodge Ram 2500 w/Cummins- 4-sale


Top
#3211711 - 12/09/13 08:56 PM Re: Help me diagnosis this issue! [Re: dja4260]
Blkstanger Offline


Registered: 08/13/11
Posts: 1291
Loc: Lakeside, CA
Heat shield on the muffler has come loose.
_________________________
99 Jeep GC 4.7 156,000 PYB 10w30, Fram Ultra.

Top
#3211713 - 12/09/13 08:57 PM Re: Help me diagnosis this issue! [Re: dja4260]
Warstud Offline


Registered: 09/02/05
Posts: 3983
Loc: MIchigan
Broken exhaust hangar or loose heat shield

Top
#3211745 - 12/09/13 09:31 PM Re: Help me diagnosis this issue! [Re: Warstud]
dja4260 Offline


Registered: 05/16/11
Posts: 889
Loc: Chicago
Originally Posted By: Warstud
Broken exhaust hangar or loose heat shield


I don't see a broken exhaust hanger making it sound like it has straight pipes.
_________________________
2013 Hyundai Elantra Gt Hatch 6 spd
2008 Nissan Sentra
1997 HD Sportster

Top
#3211746 - 12/09/13 09:36 PM Re: Help me diagnosis this issue! [Re: Warstud]
Clevy Offline


Registered: 11/11/10
Posts: 9782
Loc: Saskatoon canada
Originally Posted By: Warstud
Broken exhaust hangar or loose heat shield



That'll be my guess too
_________________________
2006 Charger RT
Miles x 2 per oil filter

Top
#3212883 - 12/10/13 09:33 PM Re: Help me diagnosis this issue! [Re: dja4260]
Blkstanger Offline


Registered: 08/13/11
Posts: 1291
Loc: Lakeside, CA
The heat shield on my Daughters Nissan came loose. It made a [censored] of a noise. It was only held on by some cheesy little studs with push on spring things. Very cheap stuff.
_________________________
99 Jeep GC 4.7 156,000 PYB 10w30, Fram Ultra.

Top