Fit Engine Modifications, Motor Swaps, ECU Tuning Reference Library for Engine Modifications, Swaps and Tuning

2007 Sport 5AT - noise from engine

Thread Tools
 
Search this Thread
 
  #1  
Old 06-21-2010, 12:10 AM
jsmooney's Avatar
Member
5 Year Member
Thread Starter
Join Date: Dec 2006
Location: Tuscaloosa, AL
Posts: 38
2007 Sport 5AT - noise from engine

Is this sound 'normal' ? It's more than loud valves. I can feel the #2 cyl coil pack and it feels very knocky whereas the other 3 are just a slight vibration (I would call the slight vibration normal).

I diagnosed this as a loud engine last year. It has gotten more knocky, sometimes sounds like something scraping. Sometimes it's louder than others and definitely doesn't go away. A valve adjustment made the sound more clear and pronounced (it's not the valves).

My current diagnosis is piston slap, solution is a replacement engine. The car is out of warranty, so if I take it to the dealer $$$. Something happened with about 2k miles on the car - the ECU decided to take a poop. The car was running on 2, maybe 3 cylinders (1 and 2 were problematic). The dealer said it was ok to drive it like that. We drove it for about 100 miles while it was like that. Hopefully that didn't have lasting effects. (we were in the mountains, very far away from anything)

Any ideas or suggestions will be helpful

Details: 2007 Fit Sport AT, approx 50k miles. Oil has been checked, changed on time, and hasn't run low.

Link two two youtube vids I took after the valve adjustment:
YouTube - 07 Honda Fit Sport - engine noise at idle
YouTube - 07 Honda Fit Sport - engine noise at idle v2

edit:

PROBLEM SOLVED! See reply below. This was a complete and utter misdiagnosis on my part.
 

Last edited by jsmooney; 08-23-2010 at 02:26 PM.
  #2  
Old 08-23-2010, 02:06 PM
willy65000's Avatar
Member
5 Year Member
Join Date: Aug 2006
Location: Minneapolis, Minnesota
Posts: 311
I don't think you've got piston slap. From your video it sounds more like really loud valves. I've got an 07 with 80K on it and I first noticed piston slap a couple of years ago. It starts about a minute after the car has been running and only happens at idle. Then it goes away after the car has been driven and is fully warmed up. Are you 100% sure you've got the valve clearances where they need to be?

Good luck
 
  #3  
Old 08-23-2010, 02:24 PM
jsmooney's Avatar
Member
5 Year Member
Thread Starter
Join Date: Dec 2006
Location: Tuscaloosa, AL
Posts: 38
solve

noise solved

a few weeks ago, the car decided to eject the #3 spark plug and coil pack. The mechanic said the other spark plugs were loose and the crush washer wasn't crushed....not sure if it was like this from the factory or not - I never messed with the plugs before.

We get the car back, and voila! No more noise. I guess the spark plugs were loose enough so that every explosion caused them (or it in this case) to move and cause the noise.
 
  #4  
Old 08-23-2010, 07:38 PM
Koi's Avatar
Koi
Koi is offline
Member
5 Year Member
iTrader: (7)
Join Date: Feb 2008
Location: California, that's right
Posts: 1,139
Have you ever had the spark plugs changed so far? Would be odd for them to come from the factory like that..
 
  #5  
Old 08-23-2010, 07:41 PM
jsmooney's Avatar
Member
5 Year Member
Thread Starter
Join Date: Dec 2006
Location: Tuscaloosa, AL
Posts: 38
I haven't explicitly asked to had them changed. They may have been changed/examined when I took the car in for a faulty ecu warranty. Trying to prove that 'they' did it would be extremely hard and would require more than the Chewbacca defense.

I'm not concerned anymore and the car is fixed.
 
  #6  
Old 08-23-2010, 09:12 PM
willy65000's Avatar
Member
5 Year Member
Join Date: Aug 2006
Location: Minneapolis, Minnesota
Posts: 311
It's nice that your car's fixed but if your shop did in fact change your plugs I would think about finding a new shop that knows how to tighten things.
 
  #7  
Old 08-23-2010, 09:14 PM
jsmooney's Avatar
Member
5 Year Member
Thread Starter
Join Date: Dec 2006
Location: Tuscaloosa, AL
Posts: 38
Originally Posted by willy65000
It's nice that your car's fixed but if your shop did in fact change your plugs I would think about finding a new shop that knows how to tighten things.
Thanks for the suggestion! I don't go to that shop anymore, they do shoddy work anyways.

The place I go to now (and have gone to for a while, except for exception....cough see above) is Car Care in Pelham, AL. Great work, excellent service. They are honest and reasonable.
 
  #8  
Old 08-23-2010, 10:24 PM
DOHCtor's Avatar
Member
Join Date: Sep 2008
Location: Québec city
Posts: 622
My engine is experiencing piston slap!!! Lucky me my car is still on it's powertrain warranty!!

Marko!!
 
  #9  
Old 08-23-2010, 10:27 PM
jsmooney's Avatar
Member
5 Year Member
Thread Starter
Join Date: Dec 2006
Location: Tuscaloosa, AL
Posts: 38
I still think they should have put a k-series in the fit. I think it's an overall better motor. They could have put a civic motor in there and probably achieved similar gas mileage...not to mention a k20a would be easier to fit in there. just an opinion
 
  #10  
Old 08-23-2010, 10:30 PM
DOHCtor's Avatar
Member
Join Date: Sep 2008
Location: Québec city
Posts: 622
I've allready said a R18 in the fit would have been a better solution... you eliminate an unneeded engine from the lineup and have better performance, similar economy and for honda, less money spend making another motor... So you compete with the 1.8 in the Versa and put a brawling on the Yaris, Aveo, Fiesta, etc...

MArko!!
 
  #11  
Old 08-24-2010, 06:40 PM
willy65000's Avatar
Member
5 Year Member
Join Date: Aug 2006
Location: Minneapolis, Minnesota
Posts: 311
So You've got a case of piston slap to Marko? What year is your fit, how many miles on it and when did it start. Does it slap when it's cold and sound fine when fully warmed? I'm hoping this is similar to the problem GM is having with there truck engines and it's not an issue as far as durability. I have a friend with a 2000 half ton Chevy that's been slapping for the last 120K and it hasn't caused any problems so far.
 
  #12  
Old 08-24-2010, 09:38 PM
DOHCtor's Avatar
Member
Join Date: Sep 2008
Location: Québec city
Posts: 622
Originally Posted by willy65000
So You've got a case of piston slap to Marko? What year is your fit, how many miles on it and when did it start. Does it slap when it's cold and sound fine when fully warmed? I'm hoping this is similar to the problem GM is having with there truck engines and it's not an issue as far as durability. I have a friend with a 2000 half ton Chevy that's been slapping for the last 120K and it hasn't caused any problems so far.
80 500km now started abour 20 000km ago... 2008 AT! Never really happened to check out when it was cold but it does exactly the same thing when hot as my ''beaten as shit'' 1997 DOHC Neon!! I don't think durability is gonna be an issue but i plan to revisit my dealership soon!! They call me by my name now so i want them to remember it....

Marko!!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rac1201
1st Generation (GD 01-08)
3
11-20-2014 09:29 PM
Mercfh
3rd Generation (2015+)
7
10-27-2014 08:53 PM
Fitguy07
Fit DIY: Repair & Maintenance
10
06-24-2014 09:14 PM
wademunkey
General Fit Talk
17
03-29-2011 09:28 PM
--Mike--
Fit DIY: Repair & Maintenance
5
05-14-2009 02:00 AM



Quick Reply: 2007 Sport 5AT - noise from engine



All times are GMT -4. The time now is 08:35 PM.