Question about 2000 Ford Focus

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2000 focus rough/surging idle tried sensors vaccuum leak ?

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(Idle Air Control) IAC Motor is bad or dirty. Clean or replace should fix your problem

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1 Answer

Car runs rough around 20 mph then smooth out when I go faster


Possibly a vaccuum leak in a small line.. Would cause the engine to idle rough.. Also a bad sensor valve.

Dec 02, 2016 | Cars & Trucks

1 Answer

Daihatsu sirion 1999-issue-not keeping idle,


Most times engine surging is caused by a manifold vaccuum leak. Lightly spray some carburetor cleaner around the intake manifold and vaccuum lines to check for a leak.

Oct 29, 2013 | Cars & Trucks

1 Answer

Engine surging idle


Check for a manifold vaccuum leak, or an opening between the MAF, (mass air flow sensor), and the throttle body. The easiest way to check is to spray lightly with aerosol carburetor cleaner and watch for engine to die or surge.

Oct 29, 2013 | Cars & Trucks

2 Answers

Rough idle problem


could be a vacuum leak at a hose or gasket. with the engine running spray a little carb spray at the intake manifold area. if the idle picks up you are close to the vacuum leak. dont spray on the exhaust manifold area, be careful

Oct 24, 2013 | Cars & Trucks

2 Answers

Idle is rough


Spark Plugs have to be changed every 3 years
Front Oxygen Sensors changed every 100,000 miles
Can't have any Vacuum Leaks -- anywhere on the vehicle
Need to have it road tested with a Professional Scan Tool
& look at all data & get caught up on Preventative Maintenance
Very few people change motor oil 3 or 4 times a year, if at all,
and the Variable Cam Actuators fail, as a result,that & few other
things can cause rough running engine & resulting idle issues
It's well known that Ford COP Ignition Coils fail sometime in
every year of ownership

Jun 21, 2013 | 2003 Ford Explorer

2 Answers

My ford focus runs rough , high idle, and want keep running in park


Check pcv hose from intake to pcv valve. Check while running, they will collapse and leak

Apr 20, 2011 | 2000 Ford Focus

3 Answers

Rough idle 2000 Ford Focus , 2lt z-tek engine dohc


This car is very hard to work on. Suggest to check the tune up and all vaccuum hoses are good.

Nov 16, 2010 | 2000 Ford Focus

1 Answer

Our 2001 ford focus when it idles it surges


Check the pcv hose for leaks at the intake manifold. Common problem.

Jan 19, 2010 | 2001 Ford Focus

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