Weird problem with my civic manual. - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 08-08-2006, 06:57 PM   #1
Registered Member
 
Compaq888's Avatar
 
Join Date: Oct 2005
Posts: 1,460
Country: United States
Weird problem with my civic manual.

I was driving to work and noticed that when I switched gears, meaning when I let go off the gas and pressed in the clutch the rpms would continue to increase for a little while and then fall. Usually when I released the gas and pressed in the clutch they would fall.

Also when I parked at work and put it into neutral there was a loud grinding sound while the car idled.

The grinding noise stopped when I turned off the car but from now on the weird rpms shooting up when I press the clutch continues to happen.

Any ideas? I want to get several advices before I go to take my car in to get repaired.
__________________

__________________

Compaq888 is offline   Reply With Quote
Old 08-08-2006, 07:40 PM   #2
*shrug*
 
Join Date: Sep 2005
Posts: 6,195
Country: United States
Generally if the revs jump after you press the clutch in it's because you held the gas too long.

From where did the grinding come?
__________________

SVOboy is offline   Reply With Quote
Old 08-08-2006, 07:57 PM   #3
|V3|2D
 
thisisntjared's Avatar
 
Join Date: Mar 2006
Posts: 1,186
Country: United States
Send a message via AIM to thisisntjared
describe the grinding better.
__________________
don't waste your time or time will waste you
thisisntjared is offline   Reply With Quote
Old 08-08-2006, 08:04 PM   #4
Registered Member
 
Compaq888's Avatar
 
Join Date: Oct 2005
Posts: 1,460
Country: United States
OK. After I parked and put it in neutral it made a grinding noise until I shut the engine off. For about 20-30sec.

The noise didn't go away until I shut off the car. After I restarted the car 2 hours later there was no grinding noise.

For the reving problem I released the gas pedal, waited 2-3 seconds then pressed the clutch in and the rpms still increased. It won't go away.

The grinding noise came from the transmission. 20-30 sec was enough time for me to hear where it was coming from. All the gears still work but the revs increase everytime I press the clutch in has me worried.
__________________

Compaq888 is offline   Reply With Quote
Old 08-08-2006, 09:38 PM   #5
*shrug*
 
Join Date: Sep 2005
Posts: 6,195
Country: United States
This is the time when you need a tach, to be honest, not trying to give you a hard time, but it would be really good to know from where to where it went and all that.
SVOboy is offline   Reply With Quote
Old 08-08-2006, 10:03 PM   #6
Registered Member
 
Compaq888's Avatar
 
Join Date: Oct 2005
Posts: 1,460
Country: United States
Quote:
Originally Posted by SVOboy
This is the time when you need a tach, to be honest, not trying to give you a hard time, but it would be really good to know from where to where it went and all that.
It goes plenty up for me to hear it from the cabin
__________________

Compaq888 is offline   Reply With Quote
Old 08-09-2006, 03:37 AM   #7
Registered Member
 
GasSavers_brick's Avatar
 
Join Date: Mar 2006
Posts: 162
Country: United States
Two major contributors to unloaded engine RPM: idle air control motor and throttle. If your engine is cold it wants to idle high. If you shift at super low RPM then it's possible that the engine is trying to get back to it's high idle for warmup. (This happens to me when I shift to N from a slow 5th gear cruise in the morning).

A 99 Civic shouldn't have any of that throttle by wire nonsense, so you can check the linkage for lag.

Check engine light?

As for the griding, are you sure it was a grinding? Like a bad shift? Or was it more of a rattle? You get rattles when exhaust flashing comes loose, and might sound like a grind I guess. I just don't buy that it's definitely in the trans unless you stuck your head under the hood with a mechanic's stethoscope. It's nearly impossible to pinpoint internal noises any other way.
__________________
'07 Toyota Prius
GasSavers_brick is offline   Reply With Quote
Old 08-09-2006, 04:17 AM   #8
Moderator
 
GasSavers_DaX's Avatar
 
Join Date: Oct 2005
Posts: 1,209
Country: United States
Your throttle cable could be gummy also, resulting in a slower return to 0% throttle. I would be more likely to suspect a mal-adjusted FITV or some other idle control component.
GasSavers_DaX is offline   Reply With Quote
Old 08-09-2006, 06:44 AM   #9
Registered Member
 
Compaq888's Avatar
 
Join Date: Oct 2005
Posts: 1,460
Country: United States
Quote:
Originally Posted by DaX
Your throttle cable could be gummy also, resulting in a slower return to 0% throttle. I would be more likely to suspect a mal-adjusted FITV or some other idle control component.
Dax you are right. My whole engine compartment is clean but my throttle cable is super dirty where it attaches to the TB.
__________________

Compaq888 is offline   Reply With Quote
Old 08-09-2006, 06:48 AM   #10
Registered Member
 
Compaq888's Avatar
 
Join Date: Oct 2005
Posts: 1,460
Country: United States
Quote:
Originally Posted by brick
Two major contributors to unloaded engine RPM: idle air control motor and throttle. If your engine is cold it wants to idle high. If you shift at super low RPM then it's possible that the engine is trying to get back to it's high idle for warmup. (This happens to me when I shift to N from a slow 5th gear cruise in the morning).

A 99 Civic shouldn't have any of that throttle by wire nonsense, so you can check the linkage for lag.

Check engine light?

As for the griding, are you sure it was a grinding? Like a bad shift? Or was it more of a rattle? You get rattles when exhaust flashing comes loose, and might sound like a grind I guess. I just don't buy that it's definitely in the trans unless you stuck your head under the hood with a mechanic's stethoscope. It's nearly impossible to pinpoint internal noises any other way.
There is no check engine light. But you are right also. This did happen in the morning and I do shift at super low RPM. I will check the idle components.
The problem even stayed after the car warmed up so now I'm confused about the car being cold.
__________________

__________________

Compaq888 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Figures on my account rbs4898 Fuelly Web Support and Community News 6 04-22-2013 01:16 AM
new link for Mobile after submit Pontiac Fuelly Web Support and Community News 1 02-07-2009 04:48 AM
The Honda Fit GasSavers_DaX General Fuel Topics 54 05-13-2006 12:52 AM
Tour de Sol mileage rally diamondlarry General Fuel Topics 17 05-05-2006 10:34 AM
Temperature and MPG: Wind drag experts needed... Ernie? Flatland2D General Fuel Topics 7 10-10-2005 11:01 AM

» Fuelly iOS Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 06:27 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.