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07-27-2013, 01:56 PM | #1 |
Scooby Newbie
Member#: 337395
Join Date: Nov 2012
Vehicle:2014 Impreza SP Ltd ISM |
knocking when engine is off
for the past few days, when I turn off car after driving for 10~15 minutes, it give me ticking and/or knocking noises
it last for few minutes and eventually it goes away. however it doesn't do that when car is idling or moving also, when car is idling, I hear noise, sounds like some sort of fan is having difficulty, however when I starts to drive I can still hear it but quieter due to road noise.. Does anybody have similar issues? car is 13 impreza sport premium 5mt
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Last edited by dhlee528; 07-27-2013 at 02:13 PM. |
07-27-2013, 02:47 PM | #2 |
Scooby Specialist
Member#: 354284
Join Date: Apr 2013
Location: Midwest
Vehicle:2013 Imp Sport CVT SWP |
It's the engine and or exhaust cooling off. When its hot out, and cars hot you'll notice it more. It's normal for every car. You take a 700-800 deg exhaust with heat shields then cool it off it'll pop and shift etc. Someone else might have a different explanation but that's what I've always assumed it was. It's normal tho, all of my cars do it. Tahoe is louder than the rest, but all do.
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07-27-2013, 02:51 PM | #3 |
Scooby Specialist
Member#: 293894
Join Date: Sep 2011
Chapter/Region:
NWIC
Location: Billings,Mt
Vehicle:2011 wrx sti world rally blue |
Its normal
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07-27-2013, 03:34 PM | #4 |
Scooby Newbie
Member#: 337395
Join Date: Nov 2012
Vehicle:2014 Impreza SP Ltd ISM |
Thank you,
2010 camry and 2003 kia sedona doesn't make that sounds so.. I was just curious |
07-28-2013, 08:56 PM | #5 |
Scooby Newbie
Member#: 324428
Join Date: Jun 2012
Chapter/Region:
NWIC
Location: Sandy, Oregon
Vehicle:2013 Impreza Marine Blue Pearl |
My service person says it is the PZEV doing its thing. I notice it when the car is idling, like when I step out to get the mail, and also when I shut the car off.
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07-28-2013, 11:00 PM | #6 |
Scooby Specialist
Member#: 354284
Join Date: Apr 2013
Location: Midwest
Vehicle:2013 Imp Sport CVT SWP |
I'd be a little concerned about him servicing my car then- just joking, I'm sure he is an outstanding technician
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07-28-2013, 11:11 PM | #7 |
Scooby Newbie
Member#: 169935
Join Date: Jan 2008
Chapter/Region:
MAIC
Location: Baltimore MD
Vehicle:04 FXT, TurboMiata Black, Green |
Nope it is no-load induced knock. Your motor is toesed.
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07-28-2013, 11:29 PM | #8 |
Scooby Specialist
Member#: 354284
Join Date: Apr 2013
Location: Midwest
Vehicle:2013 Imp Sport CVT SWP |
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07-29-2013, 01:48 AM | #9 |
Scooby Specialist
Member#: 310435
Join Date: Feb 2012
Location: Fayetteville, NC
Vehicle:'12 Sport Limited Black - 255,685 miles |
Yup. I have a 2012 with over 28K. My daughter will sometimes come out in the garage when I come home from work and mock the ticking sound. "Tick, Tick, Tick...."
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07-29-2013, 08:36 AM | #10 |
Scooby Specialist
Member#: 323103
Join Date: Jun 2012
Chapter/Region:
MAIC
Location: Columbia MD
Vehicle:2018 WRX Pure der |
Im guessing shes like 4? lol
...shes actually 27 |
07-29-2013, 01:42 PM | #11 |
Scooby Newbie
Member#: 337395
Join Date: Nov 2012
Vehicle:2014 Impreza SP Ltd ISM |
my car only has 6300 miles on it, I was bit worried because I need to go on a 800 mile road trip with full load this weekend.
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07-29-2013, 02:17 PM | #12 |
Scooby Specialist
Member#: 354284
Join Date: Apr 2013
Location: Midwest
Vehicle:2013 Imp Sport CVT SWP |
Don't worry about it at all. You'd be better off worrying about a meteor crashing into you while you drive- seems that's a more imminent threat than the sounds your talking about from your car.
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07-29-2013, 02:28 PM | #13 |
*** Banned ***
Member#: 302570
Join Date: Nov 2011
Location: dear old dixie
Vehicle:2013 XV DGM! |
Id be more worried about small rocks and debris hitting the windshield on a long road trip than the engine cooling noises!
I followed a pickup truck too closely ( 5-7 car lengths) on day on the turnpike, and got a nice chip from a tiny grain of gravel kicked up. Man I wish large non-semi's were legally required to run mudflaps! |
07-29-2013, 02:31 PM | #14 |
Scooby Newbie
Member#: 337395
Join Date: Nov 2012
Vehicle:2014 Impreza SP Ltd ISM |
Thank you,
about the rocks/debris/bugs i was thinking about getting hood protector and wind deflectors, are those helpful? |
07-29-2013, 02:35 PM | #15 |
Scooby Specialist
Member#: 323103
Join Date: Jun 2012
Chapter/Region:
MAIC
Location: Columbia MD
Vehicle:2018 WRX Pure der |
Hood deflector would help a little, wind deflectors wouldn't, clear bra would help the best.
Don't worry about it too much, its inevitable. I have a hood deflector but my bumper looks like it was hit with birdshot from 100 yards. Oh well, its just a Subaru. |
07-29-2013, 02:40 PM | #16 |
*** Banned ***
Member#: 302570
Join Date: Nov 2011
Location: dear old dixie
Vehicle:2013 XV DGM! |
Yeah, a 3m clear film is going to be my next "mod".
Also- if you do any dirt/gravel roads, mudflaps will save you from many chips. Ever since I chipped my first Sube's windshield, I'm really conscious of the road conditions and whats ahead of me. not that I was oblivious before- but the thing chipped so easily, I just dont follow trucks and semi's at all like I have ever done in the past. |
07-29-2013, 02:42 PM | #17 | |
Scooby Newbie
Member#: 337395
Join Date: Nov 2012
Vehicle:2014 Impreza SP Ltd ISM |
Quote:
Thank you for the information, I don't plan to drive offroad/dirt, I plan to get hood deflector, and wind deflector for possibly reducing noise, and maybe aero crossbar for future use. I'll look into 3m clear film |
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07-29-2013, 02:50 PM | #18 |
*** Banned ***
Member#: 302570
Join Date: Nov 2011
Location: dear old dixie
Vehicle:2013 XV DGM! |
The 3m film is often a fairly pricey dealer add-on. You can buy it yourself but car tint shops often have it and will do it much cheaper than a dealer. After 30k on my 12 I had several small chips on the leading edge of the hood (so the hood deflector would have been worthwhile) as well as all over the bumper.
Thays why I'm gonna spend a few hundo on the 3m film this time around. I'm going to get the oem hood deflector next service visit. I get a good enough "loyalty" discount that its cheaper than online or ebay! Enjoy your new car, and be safe and have a nice roadtrip! |
07-29-2013, 05:35 PM | #19 |
Scooby Specialist
Member#: 310435
Join Date: Feb 2012
Location: Fayetteville, NC
Vehicle:'12 Sport Limited Black - 255,685 miles |
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