revs increase without throttle - 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 Discussions > General Car Chat Lounge

General Car Chat Lounge Discussion Forum relating to nonspecific Ford Focus models, car purchasing, auto industry news and any car talk.

Search This Forum | Image Search | Advanced Search    
FocusFest FocusFanatics Merchandise

Reply




 
LinkBack Thread Tools Display Modes
Old 01-11-2010, 01:00 PM   #1
Focus Rookie
 
Join Date: Jan 2010
Fan#: 72012
Location: dartmouth, United Kingdom
What I Drive: 1999 racing green zetec 16v 18i

Posts: 3
FF Reputation: 1 renzy Good Standing Member
Buy-Sell-Trade Rating: (0)
revs increase without throttle

hi ive just bought an 1999 focus 18i zetec,as i was driving it home i noticed that when
i push the clutch in the revs stay on 2500 for a couple seconds then drop to normal,but this morning when it was cold it kept doing it in every gear for a few minutes till the engine warmed up,any help on the matter would be great,many thanks matt.


renzy is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-11-2010, 01:58 PM   #2
Focus Addict
 
Z_interactive's Avatar
 
Join Date: Sep 2009
Fan#: 69219
Location: Zadar, Croatia
What I Drive: 2007 blue 1.6

Posts: 951
Points 5,537, Level 47
Points: 5,537, Level: 47 Points: 5,537, Level: 47 Points: 5,537, Level: 47
Level Up 94% Completed
Level up: 94% Level up: 94% Level up: 94%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 2 Z_interactive Good Standing Member
Buy-Sell-Trade Rating: (0)
Hey, welcome to FF, it's good to have more EU people here because there's differance between markets.
Anyway, about your question.
How good was that car driven? Did you (or previous owner) drive it in high revs while engine was cold.
Also 1.8 and 2.0 engines in MkI focus are over 20 years old, designed in late 1980s, for mkI focus are upgraded so maybe the problem is in ECU, engine platform is old and from 88' to 98' is 10 years and that's long time in auto world. Electronic things have changed.

I'm no expert and I don't know will this help you but that's what I'm guessing...

Some info about engine:

1.8 L Ford Zeta engine
Inline 4
DOHC
16 valves
head and block - light alloy
New intake manifold design for more effective mixing
of fuel and air in the combustion chamber
2 belt-driven camshafts each with 5 bearings
Optimized camshaft drive for long belt life
weight 116 kg

84 kW-115 HP / 5500 rpm
160 Nm / 4400 rpm
__________________
V8, 4.0 L, 420 hp, 6 speed manual, rear wheel drive, coupe, REDLINE AT 8400 rpm = 2007 BMW M3 E92 - new will be turbo, shame
Visit http://zinteractive-fordfocus.webs.com/ for all informations about ford focus! / UPDATED at 27/07/2012
Z_interactive is offline  
    Reply With Quote Quick reply to this message
Old 01-11-2010, 02:00 PM   #3
Focus Addict
 
Z_interactive's Avatar
 
Join Date: Sep 2009
Fan#: 69219
Location: Zadar, Croatia
What I Drive: 2007 blue 1.6

Posts: 951
Points 5,537, Level 47
Points: 5,537, Level: 47 Points: 5,537, Level: 47 Points: 5,537, Level: 47
Level Up 94% Completed
Level up: 94% Level up: 94% Level up: 94%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 2 Z_interactive Good Standing Member
Buy-Sell-Trade Rating: (0)
And of course, how much miles does car have. Was the clutch changed or is the same from 1999?
__________________
V8, 4.0 L, 420 hp, 6 speed manual, rear wheel drive, coupe, REDLINE AT 8400 rpm = 2007 BMW M3 E92 - new will be turbo, shame
Visit http://zinteractive-fordfocus.webs.com/ for all informations about ford focus! / UPDATED at 27/07/2012
Z_interactive is offline  
    Reply With Quote Quick reply to this message
Old 01-11-2010, 02:11 PM   #4
Focus Fanatic
 
Join Date: Mar 2008
Fan#: 54713
Location: NPRFL, United States
What I Drive: 02RedSVT #306

Posts: 2,929
FF Reputation: 19 Yocrew Great Standing Member
Buy-Sell-Trade Rating: (12)
Check your Throttle Position Sensor. Take it off and look for moisture on the silver ring. There should be a how to thread if you're not sure what that is or where. It's located on the throttle body.
Yocrew is offline  
    Reply With Quote Quick reply to this message
Old 01-11-2010, 03:56 PM   #5
rawr
 
Join Date: May 2009
Fan#: 65577
Location: chicago suburbs, IL
What I Drive: 07 ZX3, 86 honda vf500f, 81 Vespa

Posts: 3,233
Points 3,564, Level 37
Points: 3,564, Level: 37 Points: 3,564, Level: 37 Points: 3,564, Level: 37
Level Up 43% Completed
Level up: 43% Level up: 43% Level up: 43%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 3 puppetman Good Standing Member
Buy-Sell-Trade Rating: (3)
my 07 does that. ive always had the rev hang a little bit when i push the clutch, and it dosnt seem to hurt the performance of the car any. since its been cold my car has been idling at a much higher rpm (2-2.5rpm) than normal, so i figure its the engines way of warming itself. so to your question, i imagine its supossed to this.
__________________
in illinois there are 4 seasons....almost winter, winter, still winter, and construction

Quote:
Originally Posted by blackoutSVT View Post
hey man don't hate, it cost alot of money to look that cheap...
puppetman is offline  
    Reply With Quote Quick reply to this message
Old 01-12-2010, 08:21 AM   #6
Focus Fanatic
 
Join Date: Mar 2008
Fan#: 54713
Location: NPRFL, United States
What I Drive: 02RedSVT #306

Posts: 2,929
FF Reputation: 19 Yocrew Great Standing Member
Buy-Sell-Trade Rating: (12)
Quote:
Originally Posted by puppetman View Post
my 07 does that. ive always had the rev hang a little bit when i push the clutch, and it dosnt seem to hurt the performance of the car any. since its been cold my car has been idling at a much higher rpm (2-2.5rpm) than normal, so i figure its the engines way of warming itself. so to your question, i imagine its supossed to this.
Please don't give out advice if you don't have a real answer. "That helped not at all". If anything you could be helping things get worse.
Take your car to an auto parts store and have them read the code. Please don't think it's normal.
Yocrew is offline  
    Reply With Quote Quick reply to this message
Old 01-12-2010, 08:24 AM   #7
rawr
 
Join Date: May 2009
Fan#: 65577
Location: chicago suburbs, IL
What I Drive: 07 ZX3, 86 honda vf500f, 81 Vespa

Posts: 3,233
Points 3,564, Level 37
Points: 3,564, Level: 37 Points: 3,564, Level: 37 Points: 3,564, Level: 37
Level Up 43% Completed
Level up: 43% Level up: 43% Level up: 43%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 3 puppetman Good Standing Member
Buy-Sell-Trade Rating: (3)
ive read other threads on here about rev hang and that it was normal. sorry i cannot reference them. and i just wanted to give my opinion, i said i "imagine" "not this is the way it is".

to the OP sorry you probably shouldnt take my advice since this is the internet anyway and you really have no idea who i am. maybe im a troll and i wanna screw with you
have your dealership take a look at it
__________________
in illinois there are 4 seasons....almost winter, winter, still winter, and construction

Quote:
Originally Posted by blackoutSVT View Post
hey man don't hate, it cost alot of money to look that cheap...
puppetman is offline  
    Reply With Quote Quick reply to this message
Old 01-12-2010, 09:12 AM   #8
Focus Fanatic
 
xpeterbilt387x's Avatar
 
Join Date: Mar 2008
Fan#: 54461
Location: Concord NH, United States
What I Drive: 14' PB ST2

Posts: 1,837
Points 3,634, Level 37
Points: 3,634, Level: 37 Points: 3,634, Level: 37 Points: 3,634, Level: 37
Level Up 90% Completed
Level up: 90% Level up: 90% Level up: 90%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 3 xpeterbilt387x Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Yocrew View Post
Please don't give out advice if you don't have a real answer. "That helped not at all". If anything you could be helping things get worse.
Take your car to an auto parts store and have them read the code. Please don't think it's normal.
Hes just stating that his car does it when its cold. my 2009 revs higher when its cold as well, so tell me to go "Check my code". As far as the engine rev a little higher when its cold, most engines will do that, but after the engine warms up it shouldn't hang out above 2.5, i would check the sensor as stated above. Also is the Check Engine light on?
xpeterbilt387x is offline  
    Reply With Quote Quick reply to this message
Old 01-12-2010, 09:37 AM   #9
Focus Fanatic
 
Join Date: Mar 2008
Fan#: 54713
Location: NPRFL, United States
What I Drive: 02RedSVT #306

Posts: 2,929
FF Reputation: 19 Yocrew Great Standing Member
Buy-Sell-Trade Rating: (12)
Quote:
Originally Posted by puppetman View Post
ive read other threads on here about rev hang and that it was normal. sorry i cannot reference them. and i just wanted to give my opinion, i said i "imagine" "not this is the way it is".

to the OP sorry you probably shouldnt take my advice since this is the internet anyway and you really have no idea who i am. maybe im a troll and i wanna screw with you
have your dealership take a look at it
Quote:
Originally Posted by xpeterbilt387x View Post
Hes just stating that his car does it when its cold. my 2009 revs higher when its cold as well, so tell me to go "Check my code". As far as the engine rev a little higher when its cold, most engines will do that, but after the engine warms up it shouldn't hang out above 2.5, i would check the sensor as stated above. Also is the Check Engine light on?
Maybe you should go check your code.

First of all, he has a different engine than both of you. And even when it is cold, normally a zetec engine does not rev over 2k. Mine for instance never tops 1300k. 2nd of all I never called anyone a troll and wasn't rude, so your reply wasn't needed. And you saying he probably shouldn't take your advice couldn't be anymore right. If you don't have any real useful info then your not helping.
Yocrew is offline  
    Reply With Quote Quick reply to this message
Old 01-13-2010, 01:02 PM   #10
Focus Addict
 
PlasticRacer's Avatar
 
Join Date: Nov 2007
Fan#: 51304
Location: Largo, Florida, FL
What I Drive: '02 Yellow ZX3

Posts: 788
Points 4,034, Level 40
Points: 4,034, Level: 40 Points: 4,034, Level: 40 Points: 4,034, Level: 40
Level Up 43% Completed
Level up: 43% Level up: 43% Level up: 43%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 6 PlasticRacer Good Standing Member
Buy-Sell-Trade Rating: (19)
Ur engine revving above 2k when its cold isn't normal, thats a bit high, just like yocrew said around 1200-1300rpm when its cold, then gradually goes down as it warms up. So i'd also suggest checking the TPS sensor using the how-to section as stated above
__________________
Car status: Gettin right
PlasticRacer is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:48 AM.


Copyright 2002-2015 FocusFanatics.com. 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 Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac ATS Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum, Civic Type-R Forum and Volvo XC90 Forum.





Search Engine Optimization by vBSEO 3.6.1