engine hiccups, idling goes down

[wewoy_romero]

*blue
thanks sa very specific na list. iprint ko para mapa-check ko isa-isa

*calcite
yep yun unahin ko. yun din kasi pinakamadali at suggestion ni mang mario.

[istan]

I also have the same problem w/ my engine. (Sentra 1991 super saloon 1.6)
1. When I accelerate hard, there's a ringing sound in the engine.
2. When I lift my feed of the pedal, namamatayan ako as the engine loses rpm. I have to press the accelerator pedal pa while braking.
3. Hard starting in the morning. Have to press the accelerator pedal to start.

Any ideas? Mechanic just adjusted my idle up. He says to observe it for a week. Pag bumalik problema, I have to change my computer box raw...(mahal)...

[speedyfix]

8 times out of 10 nakukuha yung problem by cleaning the intake manifold, throttle and iacv. bring it over... we can try to fix it

[wewoy_romero]

*speedyfix
yep, punta nga ako bukas sa inyo sir. thanks

[orb666]

kapag di nakuha sa linis ng throttle body, malamang sensor ang sira nyan. ang gnagawa kc ng ECU ay to take control of the idle speed lalo na kpg naka aircon... sana lang hndi modified tsikot mo..

[speedyfix]

wewoy, how's the car?

[wewoy_romero]

*speedyfix
so far so good. cleaning really helped a lot. i haven't driven much with the car yet. obserbahan ko pa. pero driving home from your shop last saturday:

- idling is erratic, bumababa
---> idling is more stable. yes, it still goes up and down, pero gradual na. i know this is normal na, and it's because the aircon turns on/off when the desired temperature is met.

- hirap ang hatak when accelerating
---> almost same na with aircon turned off

- after depressing the accelerator, idle goes down na halos mamatayan na ako ng makina and there is a clicking sound na parang sinisinok ang makina
--> no more hiccups. well, it still does, pero it's the aircon turning on/off. pero unlike before na it does this rapidly. parang tic tic tic tic. now, it's just once. sometimes wala pa nga. i guess this is normal na.

- every now and then, meron yung clicking like above (feeling ko pag nag-engage na ulit yung sa aircon)
--> see above

- there is this soft whistling sound coming from the aircon vent
--> meron pa rin. pero i guess this is an aircon problem na talaga. tingin ko may butas somewhere or overcharge ng freon. this is a job for mang mario naman.

your mechanics are really perfectionists. ayaw sa pwede na. hindi nasatisfy yung nagwowork sa car ko until the idling is just right. a little over/under rpm is not enough.

maraming salamat sir. will probably be back soon. due na for changeoil eh.