Question about 2001 Ford Focus

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Jerking Under Acceleration & Radio is effected when this happpen

Hi I have a Ford Focus 2001(Y) 1.6 and am having problems with the car jerking under acceleration. There are no problems when the car is idling or revved when stationary. When the problem occurs and the car goes jerky the radio is also effected and sometime the door warning light will come on then go off after a while. I have read some posts about the mass air flow sensor and problems with acceleration but this seams to be effecting electrical areas of the car as well. I am also hgaving trouble finding the MAF sensor as the layout seems to differ form the 1.8 model i have seen pictures in the haynes manual I have.

Any help would be greatly welcome.

Many thanks

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  • 3 more comments 
  • saved_by_the Dec 02, 2008

    My car jerks when it is under acceleration and also when it is idle. My radio is also affected, randomly turning off and on... I think it is an electrical problem but I'm not sure

  • keithRichard Dec 03, 2008

    I have the same car and same problem. some people tell me that it could be the CTM control timer Module, located BEHIND the fuse box by the glove box. will try this weekend and let you know. I also hear woodpecker type moise from behind the steering wheel, which suggests to me that it's a relay flipping on and off in the ENGINE fusebox, try swapping 2 similar relays. On mine the fuel injection is done by relay R7 and i think the Air COn relay is the same - try swapping the 2. Please let me know.

  • keithRichard Dec 03, 2008

    I think to note for future. The back brake light (which doubles as night light NOT the high level brake light) takes a special double filament bulb not the normal P21. By using a normal single filament P21 bulb lots of electrical shorts are created. when i made this mistake, i had radio problems and fuel injection problems - garge changed the backlight and they all went away.

  • Rod087 Mar 15, 2009

    Hi i have the same problem with my 01 focus it is really jerky when just cruising at a steady speed just about in any gear, and the temp guage will drop to zero and jump back up to temp, sometime the idle is rreally high like 2500-3000 when i come to a stop light, can't figure it out.

  • jwall_shadyt May 11, 2010

    is the check engine light on?

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  • Ford Master
  • 42,111 Answers

Check the battery ground wire for tight and clean on the engine
check both battery terminals are clean and tight
the problem is from a loose /broken wire that is moving when the engine reacts to load ( engine mount failure )
on some other makes it can be traced to the cam position or crank position wires broken or bare

Posted on Mar 21, 2017

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Posted on Jan 02, 2017

alicantecoli
  • 22156 Answers

SOURCE: ford focus 2001

check the switch

Posted on Nov 12, 2008

ZJLimited
  • 17970 Answers

SOURCE: 2001 Ford Focus radio code

Sometimes, the radio code is label, in back side of the radio; you need take off the radio for check it. Other times this code is in the last page from owners manual.

If you can't find it, maybe need call to the Ford dealer with your VIN number and they send to you (sometimes need pay for this service).

Hope helped.

Posted on Apr 24, 2010

Ironfist109
  • 3018 Answers

SOURCE: black smoke under acceleration that

Black smoke indicates you are running rich. You may have to address the fuel injectors to make sure one is not stuck open. After replacing the MAF censor this would be my next step. Also your turbo seal might be leaking causing your truck to run rich throwing off the o2 censor. Also you can get black smoke from turbo blowby. Not burning oil but actual oil passing the rear turbine seal and getting into the exhaust. This should give you a few good places to check out. Good luck to you.

Posted on Mar 05, 2011

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