General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.
Sponsored by:
Sponsored by:

engine vibration after 'mistake'

Thread Tools
 
Search this Thread
 
  #1  
Old 08-24-2014, 07:19 PM
sona1111's Avatar
Member
Thread Starter
Join Date: Aug 2012
Posts: 113
Default engine vibration after 'mistake'

Hello again guys...

Some kind of questionable issues happened this week and I would like to know how bad it is. About two weeks ago the car would not start while I was at school but I managed to find that the issue was the clutch safety switch and so I got out a paper clip and bridged the connector which let me get home. I meant to replace the part but, as you know how life is, I have not yet got around to it.

This week was my vacation week, so I was away with family. My mother, who was still at home, needed to move the car. She does not drive manuals but I had given her a lesson a while ago and I guess she thought she remembered enough to move it. From what I understand she turned the key without pressing the clutch, and I had left the car in First. shuddering followed. She stopped after that and had her boyfriend move it, which seems to have been a success, though its really the first time anyone else has used my car.

Today I got home and decided to drive and see if there were any problems. well as soon as I started it and it had 1.5 idle revs, there was a very bad vibration from the engine. (The starter motor seemed ok, though) I let it go for about 10 seconds and after the idle speed dropped the vibration seemed to go away. I drove it around the block and the vibration did not seem to happen again. There seemed to be a soft but high-pitched noise coming from the engine, but I will have to verify that. I also restarted the engine and the vibration still did not occur again.

Does anyone know how bad the damage from this would be? Are there any tests I can do? Should I wait until the problem occurs again before considering taking it to a mechanic?

Thank you so much for taking the time to read this. I am sure I will not delay repairs again after this.
 
  #2  
Old 08-24-2014, 08:46 PM
TexasHonda's Avatar
Super Moderator : And A Texan
Join Date: Feb 2007
Location: Katy, TX
Posts: 9,652
Default

Starting engine w/ clutch engaged could put some strain on motor mounts, clutch, and transmission.

Suggest inspecting front and rear motor mounts for possible damage. You can see rear mount from pax side w/ a good light. You need someone skilled w/ manual and clutch to "load" the engine by partially engaging clutch while holding car still w/ footbrake. If done correctly this will produce enough torque to displace the motor mount if its broken. Try both forward and reverse (important for rear mount).

good luck
 
  #3  
Old 08-24-2014, 09:49 PM
UhOh's Avatar
Been Around A Long Time Member
Join Date: May 2010
Location: Washington State, USA
Posts: 908
Default

So a vibration occurred once, and not repeated.

I would drive it as though nothing has happened.
 
  #4  
Old 08-25-2014, 08:50 AM
sona1111's Avatar
Member
Thread Starter
Join Date: Aug 2012
Posts: 113
Default

today it seems to have the 'clunk' at startup which most people describe as a problem with the mounts. I guess I will order the mounts and replace them later in the week.

-any problem if I still go to work with my car until they arrive?
-the hanes manual says its good to jack up the engine with a block of wood on the oil pan, but some tutorials have advised against this. Can anyone confirm that its ok?
 
  #5  
Old 08-25-2014, 09:10 AM
TexasHonda's Avatar
Super Moderator : And A Texan
Join Date: Feb 2007
Location: Katy, TX
Posts: 9,652
Default

Engine removal procedure from shop manual says to support engine w/ hoist before removing engine/trans mounts. Support by oil pan is equivalent if you don't have engine hoist.

When I replaced my 94EX mounts I supported engine w/ jack. This allows mounting holes to stay aligned for new mount.

Rear mount is tough job but can be done from underneath. I've done it twice.
Loosen bolts from above and remove mount from underneath. I found it easier to remove vacuum line to rear AT mount from above before unbolting. Vac line tends to stick to mount and you'll only have one hand in play from underneath.

good luck
 
  #6  
Old 08-25-2014, 09:18 AM
sona1111's Avatar
Member
Thread Starter
Join Date: Aug 2012
Posts: 113
Default

This is an MT so it might not be quite as bad.

Thank you so much for the suggestions, ill let you know how it comes out.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
shea
General Tech Help
17
06-18-2009 01:30 PM
986ci's
General Tech Help
4
04-01-2009 06:24 AM
bigdawg74
General Tech Help
5
10-15-2008 10:53 AM
capnrza
General Tech Help
3
03-22-2008 08:59 PM
mamtsberg
General Tech Help
3
06-02-2007 11:18 AM



Quick Reply: engine vibration after 'mistake'



All times are GMT -5. The time now is 10:25 AM.