Focus Running Rough during Idle and Acceleration

[ray]

We have a 2007 Ford Focus that seems to run rough than normal during idle and acceleration. Upon acceleration it doesn’t feel sluggish, but seems like it is pushing harder and very rough. Oil is maintained normally, oil is up to level, changed out plugs with platinums and still getting same driveability. The idle is pretty rough too.

It is hard to see where this can be coming from. The car has reached 130K miles. Where can I start looking to figure out the cause?

Any information offered is much appreciated!!!

Topic

[Roy French]

Have you checked fuel pressure?

[Brandon]

my 2005 ford taurus did that to.

1st. clean the throttle body
2nd. fuel filter
3th. air filter
4th. vacuum leak’s
5th. seafoam the intake and gas

the last one help it out a lot

Is there any check engine light on

[ray]

Bellis….

I think I will use some B12 Berryman’s after going through and cleaning the throttle body, filters and checking leaks. I would be surprised if there was a vacuum leak.

There is no check engine light on. I will go through the above steps and this should help.

Thanks

[ray]

I supposed I can check the fuel pressure. I will do that after I go thru the filters and freshen those up. I think it is time the car got those replaced after 130 000 miles.

[Brandon]

ok hop this will help out fort you let me know if it dose

[Brandon]

has the spark plugs and wires been chang

[ray]

The plugs have but the boots have not been. I will also replace the boots to ensure they are not cracked.

[college man]

try doing a power balance test.You could also look
for vacuum leaks.

[Brandon]

did it help you out

[ray]

Hey Bellis,

Thanks for checking in with me to ensure your advice helped. I have not been able to get the time to try it all out. I will be getting to it in a few days and will be sure to let you know the outcome. Thank you for the advice, once again.

Ray

[Brandon]

ok hop it go well with you

[scott37300]

I had a 2000 focus that was running rough and idling like it was missing. Ended up being a motor mount bolt had cracked somehow. Probably pretty rare cause of rough idle but something to keep in mind. I spent a good deal of time chasing down the normal rough idle things until I found the broken bolt.

[ray]

i will definitely check for that. I have no idea what else it could be. Thanks for that input…

[JesseTech2000]

I would check your cats, sounds like you may have a restriction.

[ray]

I looked at the mount and it appears cracked surrounding the center. Kind of what you would expect to see of a cracked rubber boot. Looks hard, cracked and worn.

I am going to say that there is enough play in the mount after being worn, it is most likely the problem. So I will go hunt down a replacement.

Let ya all know how it goes once I jam another one on.

Have fun, guys…

[Author]

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