Vibration in my 2003 ZTW - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace

Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
FocusFanatics Merchandise

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 10-26-2010, 09:47 PM   #13
Focus Enthusiast
spiller's Avatar
Join Date: Jun 2010
Fan#: 75607
Location: Memphis, TN
What I Drive: 11 Sangria SE sed, 01 Wht SE Wagon

Posts: 154
FF Reputation: 1 spiller Good Standing Member
Buy-Sell-Trade Rating: (0)
Originally Posted by kkspeed View Post
The weird thing about my vibration issue is that it is intermittent. Sometimes it goes away when the engine warm and runs real smooth. That is why I thought it was in the EGR system.

Secondly, the engine idles differently when the heater is set to defrost with the heat on.
I suspect the AC turns on automatically when the defroster is turned on to prevent the windows from fogging up.
I know that's wierd, but the material used in the motor mounts is a soft (hydraulic) substance. Does a great job of isolating and dampening vibration. Even if the engine is running poorly, the mounts in good condition, will stop all that vibration.
I believe as there are changes in its temperature, it probably expands a little leading to the vibration to go away. Also, as the engine changes its mixture, it'll change just how much vibration the mounts have to dampen. Mine would start up and vibration would be felt until warmed up AND then shut off and restarted.
Keep your focus on the mounts for now. If the RH mount had failed, it could easily have led to excessive stress on the other 2 mounts and a failure on either or both.

And yes, if your vehicle is equipped with A/C and you turn the air to Defrost, the A/C compressor will turn on. Even if you hit the A/C button on the panel to turn off the A/C light, I believe the A/C compressor still runs.
spiller is offline  
    Reply With Quote

Bookmarks & Social Networks

Quick Reply

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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

Forum Jump

All times are GMT -5. The time now is 12:08 PM.

Copyright 2002-2014 All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat