Hi Sir,
I have a Sedona A/T 2002, my problem just started yesterday while cruising in the highway. noticed that when i reach 60KPH parang nabibilaukan yung van the RPM ups and down just like engine breaking (kumakadyot) nakakahilo tuloy

. pero kapag 0 to 50+kph wala namang ganoong problem. Tried to press the hold button wala namang problem until i reach 100kph but the RPM is very high due to it is in 3rd gear only.
i think yung van is trying to shift to 4th. im encountering the problem even i press or not the accelerator.
Last na ginawa ko is i change the Fuel Filter and air filter.
Nagsimula ba ang problem after fuel/air filter replacement? Baka faulty ang installation, poor quality filter, or bad hose connections? nagpapalit po ako ng fuel filter last week and the problem starts after 3days po.
May problem na po kaya yung injector ko? is it marumi/barado? or is there something to do with the pump? Hindi nga po pala mausok yung van ko, no sign of black smoke.
Mukhang wala naman problem ang fuel system mo. Recheck fuel filter installation. Baka nakakasipsip ng hangin. papacheck ko po kung may hangin di ko po kasi alam kung paano malalaman kung may hangin eh. Thanks and sana wala ngang problem yung fuel system ko.
hope matulungan nyo po ako...
Thanks in advance!