loud tappet type ticking in Duratec 2.0 dohc 2005 - Focus Fanatics
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > 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    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 11-19-2012, 03:36 PM   #1
ronj100
Focus Rookie
 
Join Date: Nov 2012
Fan#: 106421
Location: coon rapids, MN
What I Drive: 2005 tan focus zx4

Posts: 5
FF Reputation: 1 ronj100 Good Standing Member
Buy-Sell-Trade Rating: (0)
loud tappet type ticking in Duratec 2.0 dohc 2005

My 2005 ZX4 Duratec 2.0 DOHC just started making a loud lifter type noise. Engine has 98k on it with regular oil changes.
Increases and decreases with the engine speed. I can hear it best as the rpm's drop when I rev the car in nuetral. It is also loud at stop lights. It almost disappears under accleration or at steady freeway speeds.
Also, in a similar fashion, when i'm driving in gear and take my foot off the gas to declerate, it gets loud.

My mechanic checked the oil, oil pump, and took off the oil pan to clean the oil sump screen.
He also removed the cams to check everything. He said everything looked tight and clean. However, while he has much experience with the Zetec, this was his first adventure into a Duratec engine. I am trying to get advice before I have a new head put on ($$).

Could this be injector noise?
Without actually replacing each injector, how could one determine that the loud ticking noise is from an injector rather than a bad bucket lifter, etc?

The mechanic was also wondering if the DAMB type lifters could be shimmed if they were out of spec.

Its a loud enough engine ticking that I do not want to just live with it. I want to fix it.



Last edited by ronj100; 11-20-2012 at 08:15 AM.
ronj100 is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 11-19-2012, 04:41 PM   #2
fastfocus2005
Focus Rookie
 
Join Date: Jan 2010
Fan#: 72541
Location: Fowlerville, MI
What I Drive: 2005 Sonic Blue ZX3

Posts: 11
FF Reputation: 1 fastfocus2005 Good Standing Member
Buy-Sell-Trade Rating: (0)
This noise you say you're hearing is your IMRC flaps in the ports of your intake manifold. This can easily mistaken for valvtrain noise and is a common problem with the duratec 2.0/2.3's...my car did the same thing as well. The flaps get sloppy in the ports of the plastic manifold and make a tapping/fluttering noise when they are closed at idle. Then tend to go away when revving the car or driving. Ford does not offer replacement flaps by themselves, you have to buy the whole intake manifold (about $250 if I recall). And unfortunately, the manifold you buy will eventually have the same problem years down the road since they are made from plastic!
fastfocus2005 is offline  
    Reply With Quote
Old 11-19-2012, 04:57 PM   #3
whynotthinkwhynot
Captain TMI
 
whynotthinkwhynot's Avatar
 
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 ZXW; 02 Windstar; 13 C-Max SEL

Posts: 20,058
FF Reputation: 270 whynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
Are you familiar with the mechanic's stethoscope or screwdriver trick? Use that on the valve cover to help give you some peace of mind. If it's the "tumble flaps", then you won't hear anything in the valve cover. Yes, it will take another intake manifold to fix it- unfortunately. I purchased a used one for mine. You can remove the tumble flaps, but be prepared to suffer low end torque loss as a result. The same goes for aftermarket manifolds, and cams are too expensive to help alleviate the issue of low end torque loss.
__________________
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Quote:
Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is online now  
    Reply With Quote
Old 11-19-2012, 05:03 PM   #4
whynotthinkwhynot
Captain TMI
 
whynotthinkwhynot's Avatar
 
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 ZXW; 02 Windstar; 13 C-Max SEL

Posts: 20,058
FF Reputation: 270 whynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
OH, btw, mine has been clacking for about 50k miles, and I'm at 150k.
__________________
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Quote:
Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is online now  
    Reply With Quote
Old 11-19-2012, 05:11 PM   #5
fastfocus2005
Focus Rookie
 
Join Date: Jan 2010
Fan#: 72541
Location: Fowlerville, MI
What I Drive: 2005 Sonic Blue ZX3

Posts: 11
FF Reputation: 1 fastfocus2005 Good Standing Member
Buy-Sell-Trade Rating: (0)
Buying a used manifold might be a ok option if you are lucky enough to get it from a super low mileage car or if you plan on selling the car soon. Otherwise it is a gamble since you don't really know how worn it is....could last 6 months, or a year or so if you drive the car a lot and you plan on keeping the car for a while, buying a new manifold makes more sense since you know its brand new and should at least last for a couple years. Whynotthinkwhynot is right about the stethoscope thing, I forgot to mention thats how I found this issue with my car....put the stethoscope on your intake manifold right about where the port is... you will definitely be able to hear it over anything else..
fastfocus2005 is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

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

Forum Jump


All times are GMT -5. The time now is 01:48 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

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 Acura TLX or Fiesta ST. 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.