Tag: hesitation

By on December 10, 2014

 

IMG_20140927_115357

Done Duratec’d Out? (photo courtesy: Supaman)

TTAC Commentator Supaman writes:

Hi Sajeev,

Haven’t visited TTAC in a while but I’m back! My Mazda 6 has now crossed the 101k mileage marker and all your nuggets of wisdom have helped keep this classic functional and beautiful. However, there’s another problem rearing its head that has plagued even the Mazda forums I’ve visited for a resolution.

It involves the car’s driveability at anything below 3000 rpm. Doesn’t matter whether the engine is just warming up or at operational temperature, the car will hesitate (sometimes violently) in a stuttering/bucking fashion when accelerating from a stop through the gears until I crest that magic 3000 mark on the tach. Out on the highway, passing in top gear is almost impossible because of the engine’s hesitation if revs fall below that number, requiring a downshift to 4th to keep them up. At first I thought my manual skills were to question but then I never started experiencing this issue until around the 87,000 mile mark. It has since gotten worse. Sometimes the bucking is enough to trigger the CEL but then it always goes away after a while.

Browsing the forums I’ve tried everything from cleaning the MAF sensor, fuel injector cleaner, throttle body cleaning as well as replacing the O2 sensor. I’ve narrowed it down to either spark plugs (some forum members replaced theirs but the problem came back hours later), the coils or possibly a vacuum leak. One post I read indicated a potential cylinder misfire. Even Mazda dealers were confounded. (Read More…)

Recent Comments

  • AmsterCub: I remember thinking the Contour was just modern enough that the design would look good for a long time to...
  • JGlanton: “Wrangler 4XE PHEV and it’s still dependent on gasoline for journeys beyond 21 miles” or,...
  • ajla: ’97 was kind of a thin year on the Escort so you’d probably need to go base trims. If you go to...
  • RHD: I wonder how many Uighurs will have the chance to ride in a Tesla, much less own one. Or even see one. Yup,...
  • RHD: Drive the Mystaque. At least it comes with a real transmission. Crush the other two. Oldsmobile because...

New Car Research

Get a Free Dealer Quote

Who We Are

  • Adam Tonge
  • Bozi Tatarevic
  • Corey Lewis
  • Mark Baruth
  • Ronnie Schreiber