Trouble Accelerating

[Buh]

Hi. I'm new here.

Kailangan lang ng tulong. Yung kotse ko kasi hirap humatak at mag accelerate. Nissan Sentra 98 model sya. 108k kms na. Binili namin sya ng brand new.

So mga 2-3 months ago, pinapaltan ko ung spark plugs nya. Medyo umokay naman yung takbo. Sabi lang nung mekaniko, kung may reklamo pa din ako, palinis na yung cervo at yung fuel injectors. So mga last month, pinalinis ko ung cervo. Kasi nga, mahina pa din humatak. Nag improve naman sya ng ilang linggo. But last week, pinalinis ko naman ung fuel injectors. Pero ayun, medyo mahina pa din at pansin na pansin sa highway (commonwealth, edsa). Lalo na sa mga flyovers.

Okay naman sya sa 4th-5th gear. Keeping it at 60km/h, pero kaya pa nya tumakbo ng mas mabilis.

Tapos, madalas din sya umalog. Pag nag shift ako ng gear, aalog sya pag wala sa timing.

So, anu kaya pwede ko pa ayos, patingnan or papaltan ulit? Balak ko kasi pumunta ng Banawe, gusto ko lang ng mga tips or suggestions galing dito.

Thanks!

[tr1ck5h07]

When was the fuel pump last replaced? You might want to have that checked.


Posted via Tsikot Mobile App

[Buh]

When was the fuel pump last replaced? You might want to have that checked.


Posted via Tsikot Mobile App

Yung fuel pump ba yung nasa likod na upuan? Sabi kasi nung mekaniko, kung madumi or barado daw yun, d dapat hindi mag stastart ung makina. Walang gas napapasok.

[dr. d]

if the engine appears to be working harder on pressing the pedal, but your car does not seem to be picking up speed...
i would try the advancer circuit. i understand the sentra's is built into the distributor..?
in the olden days, it was easy to check the advancer...nowadays, everything is electronic.., and the 90 degree engine block rotation, leaves many things hidden from view..

good luck.

[jick.cejoco]

What transmission type do you have?
Are the wheels free to rotate ( brakes not dragging)?
Is the exhaust system free flowing?


Posted through phlpost.gov.ph

[Aoshinomori]

kung umaalog sa gear shifting, try mo palinis yung MAF sensor, baka kailangan din paadjust yung idle.

[Stigg ma]

Yung fuel pump ba yung nasa likod na upuan? Sabi kasi nung mekaniko, kung madumi or barado daw yun, d dapat hindi mag stastart ung makina. Walang gas napapasok.

baka near failure na ang pump, kung ako mekaniko, i-pressure test ko muna yan

[Buh]

if the engine appears to be working harder on pressing the pedal, but your car does not seem to be picking up speed...
i would try the advancer circuit. i understand the sentra's is built into the distributor..?
in the olden days, it was easy to check the advancer...nowadays, everything is electronic.., and the 90 degree engine block rotation, leaves many things hidden from view..

good luck.

I'm not good with cars, but all I know from your post is, yes, the engine is working harder when I step on the pedal but does not pick up speed quickly. My rpm even goes 2.5-3 to achieve a decent speed.

What transmission type do you have?
Are the wheels free to rotate ( brakes not dragging)?
Is the exhaust system free flowing?


Posted through phlpost.gov.ph

My car has M/T. And my brakes aren't dragging. I don't know or understand the part bout the exhaust system.

kung umaalog sa gear shifting, try mo palinis yung MAF sensor, baka kailangan din paadjust yung idle.

Pagkatapos ko mag shift ng gear from lets say, 2nd to 3rd, aalog lang sya after mga 2-3 secs mag shift. Tapos ang ginagawa ko, binibitawan ko ng konti ung gas para mawala yung alog. Pag hindi ko binitawan, ang lakas na ng alog nya. Tapos ayun, pag tapak ko ulit, mabagal ang hatak.

baka near failure na ang pump, kung ako mekaniko, i-pressure test ko muna yan

So yung pump sa likod, iprepressure test? Yan ba yung kailangan ng electrician? Kasi nung ipapalinis ko ung cervo, may sinabi sila na kailangan din linisin yung parang gas pump or something, pero hahanap sila ng electrician. Tapos medyo mahal yung labor dun.


Salamat sa mga replies!

[funkeemunkee]

You may also have loose compression already. Pa-compression test mo engine.

[raycon_24]

same problem ng nissan ng kumpare ko, pa check mo yung fuel pump filter/screen baka barado, tangalin nyo muna yung filter then test drive kung may improvement.