Ford Focus 2007 Problem (HELP!)

**clide_24** · July 2nd, 2011 12:14 PM

Good Day fellow car enthusiast! Patulong naman po may na-encouter kasi ako first time na problem sa sasakyan ko (Ford Focus 2007 1.8 Hatchback odo:40K). 2 days ago I was driving at SLEX speed 100-120kph, normal naman yung takbo. Then i shifted to 130kph, may naramdaman ako na kakaiba kasi umuugtol/bumubudyok. then i reduced speed to 100kph, normal naman hindi bumubudyok/umuugtol. Then I increase again to 130KPH to test kung talagang babalik, yun na naman.. From 130kph-150 kph umuugtol/bumubudyok sya... ano po kaya ang possible na problema? dati naman po ay wala akong nararamdaman na ganon. my car is newly changed oil with new battery. I hope po matulungan nyo ako kung ano ang maaring problema and possible solution.

I am not sure if i posted my topic on the right thread.

Thanks in advance!!!!

**tip_tipid** · July 5th, 2011 02:13 AM

try replacing the sparkplugs.

**gh0st777** · July 5th, 2011 01:17 PM

check mo kung anong rpm range yung problem para madali ma diagnose
misfire ba?

**clide_24** · July 5th, 2011 07:20 PM

thanks po sa reply *ghost 777 around 3500-4000 rpm sya nagkaganon ang ginawa ko inubos ko muna yung gas nya V-POWER then pinalitan ko ng BLAZE nawala yung jerking nya try ko sya sa 140 kph ok nmn. as of now po ay obserb ko pa din kung babalik ang problema na yun. im also considering na magpalit na nga ko ng spark plugs almost 4 yrs na din po eh ano po ba ang magandang brand ng spark plugs? thanks po ng madami.