[MERGED] Help with my '96 Civic!!!

[tonyboy]

[SIZE=3]Hi, just a newbie at tsikot here so please bear with me. Here are some problems with my 96 civic that hopefully the expert members can help me with. [/SIZE]

• [SIZE=3]Idling – with no load the rpm stays constantly at 800 but when the a/c is on and I rev the engine, it drops to almost 300 to 500 but goes back to 900 rpm. I’ve been driving the car for almost 8 years now and I’m pretty sure that she was not like that few years back. Did the following things: cleaned throttle, cleaned IACV and replaced PCV valve. Any ideas on other parts to check?[/SIZE]
• [SIZE=3]Bump steer – every time I go through uneven road, pot holes or rail tracks, the steering becomes a hassle as it moves left and right by itself. Mechanic replaced the following: upper arm assembly (L and R), and rack. The rest of the suspension according to him was OK. Did complete alignment and balancing of the wheels too. After doing these, the bump steer is still a headache. Any ideas?[/SIZE]

[SIZE=3]Thanks and more power! [/SIZE]

[Diesel_Torque]

Tanong lang if ung Aircon compressor mo is R12 pa rin ba but ur using 134A Freon? kc mabigat sa compressor na pang R12 ung 134A na freon kya mahihirapan ung makina sa unang bukas ng A/C

[[archie]]

sir the idling problem comes from the idle up function ng aircon. malakas kumuha ng korente ang aircon natin kaya kailangan ng idle up. malamang may tama na yun.

yung sa steering, i have no idea lang po kung where it comes from. hintayin natin reply nung iba.

[Paolo123]

Sir after a while na naka on ac mo nawawala ba ang idle issue mo? Ganun kasi problem nung sakin, hindi ko pa maayos. Pag bagong on ang a/c nagddrop yung idle ko, pero after 15 mins naka on, magiging normal na sya. no dropping whatsoever.

[voltscastillo]

the falling engine speed happens when you floor the accelerator, and then let go? happens pag cold and biglang a/c? problema dati ito ng crv 2000 ko. never happened to any of my civics though (touch wood). pag nagkaka ganito na it usually means na it's time for me to clean the throttle body and adjust the valve tappets. after doing those, it's gone. when you tamp on the gas kasi for the DOHC b20s, the RPM should have a slight delay before falling back down to 900 or 1000. sa m/t civics ganun din daw. this is to ensure hindi ka mabitin at high rpm operation where you have to row through the gears and clutch quickly (like in a drag race or high speed city driving).

could also be a servo mechanism problem, like what happened to my officemate in his honda city.

your steering problem can also be a loose tie rod. pa-inject mo na lang sa cruven as this is expensive gawa ng dalawa ang joints ito per side ng car.

[venjo_garcia]

sir try nyo pa toe in toe out alignment.

[v6dreamer]

[SIZE=3]Hi, just a newbie at tsikot here so please bear with me. Here are some problems with my 96 civic that hopefully the expert members can help me with. [/SIZE]

• [SIZE=3]Idling – with no load the rpm stays constantly at 800 but when the a/c is on and I rev the engine, it drops to almost 300 to 500 but goes back to 900 rpm. I’ve been driving the car for almost 8 years now and I’m pretty sure that she was not like that few years back. Did the following things: cleaned throttle, cleaned IACV and replaced PCV valve. Any ideas on other parts to check?[/SIZE]
• [SIZE=3]Bump steer – every time I go through uneven road, pot holes or rail tracks, the steering becomes a hassle as it moves left and right by itself. Mechanic replaced the following: upper arm assembly (L and R), and rack. The rest of the suspension according to him was OK. Did complete alignment and balancing of the wheels too. After doing these, the bump steer is still a headache. Any ideas?[/SIZE]

[SIZE=3]Thanks and more power! [/SIZE]

Steer problem.. With all you said above you missed one thing. Have you check you shocks or strut lately?
Aircon issue..Tune up the engine

[tonyboy]

thanks so much for your replies.

to diesel torque: sir naka r134A na freon ko.

to archie12345678:sir pwede ba malaman whre the idle up function is located or can be adjusted? if dats the idle screw, na adjust ko na sha.

to paolo123: parang ganun sir pero yung car ko nag dro-drop pa rin idling everytime i rev even after 15 minutes

to voltscastillo: yes sir my car's like that. when u depress the accelerator, the rpm drops but goes back to normal. un nga lng if it drops to around 300 nanginginig na sha. parang ang bilis lng ng drop nya compared if d a/c is off. pag no load no prob ang idling ko.

did clean the throttle and the servo already. can u tell where the valve tappets are? san po ang cruven?


thanks ulit sa replies....

[[archie]]

to archie12345678:sir pwede ba malaman whre the idle up function is located or can be adjusted? if dats the idle screw, na adjust ko na sha.

sit kulang ng 9 sa handle ko... joke joke joke hehehe

yung idle up, not really sure kung saan. hindi pa kasi nang yari sakin yun eh. yung freind ko lang yung nagkaprob nung ganon then pagawa niya sa aircon specialist... ok na ulit.

[voltscastillo]

valve tappets nasa loob ng rocker cover sir. the cold clearances nasa sticker sa hood or nasa manual - if you're mechanically inclined and have the right feeler gauge pwede mo gawin ito on your own, pero i won't recommend it, really. best have it done sa honda specialist shops or sa casa mismo.

forcedspeed charges 850 for this. it's called tono, or tune.

casa charges 990 yata. they call it valve tappet adjustment.

medyo tricky ang adjustments ng honda engines. wag mo pagawa sa general mechanic, hinde nila alam ito 98% of the time. dapat sa kabisado ang honda engines.

try mo muna ito... cheap lang naman and if it doesn't cure things, at least you'll have a propoerly tuned engine. pero i'm 70% sure ito ang solusyon jan. either that or a vacuum system leak or an engine misfire, or even a malfunctioning a/c compressor.

[dennis powell]

agree din ako sa comment nila sa a/c

bumpsteer could be is a steering issue,like loose outer tie rod end,loose inner tie rod end,loose steering rackor gear.try to lightly turn your steering wheel left and right if there is a little play because even 1/4 of an inch from normal steering wheel play can cause that problem.

everytime ba na nagbumpsteer ang kotse mo ay nakastraight yung manibela or lumiliko rin?

[chris_d]

Yung sa aircon try mo muna pa adjust valve tappets sa Honda, nagkaroon din ako ng ganyan na problem dati naayos ng tamang adjust ng tappets, cost me 600+php two years ago.

[tonyboy]

[SIZE=3]Hi, just a newbie at tsikot here so please bear with me. Here are some problems with my 96 civic that hopefully the expert members can help me with.
[/SIZE]

• [SIZE=3]Idling – with no load the rpm stays constantly at 800 but when the a/c is on and I rev the engine, it drops to almost 300 to 500 but goes back to 900 rpm. I’ve been driving the car for almost 8 years now and I’m pretty sure that she was not like that few years back. Did the following things: cleaned throttle, cleaned IACV and replaced PCV valve. Any ideas on other parts to check?[/SIZE]
• [SIZE=3]Bump steer – every time I go through uneven road, pot holes or rail tracks, the steering becomes a hassle as it moves left and right by itself. Mechanic replaced the following: upper arm assembly (L and R), and rack. The rest of the suspension according to him was OK. Did complete alignment and balancing of the wheels too. After doing these, the bump steer is still a headache. Any ideas?[/SIZE]

[SIZE=3]Thanks and more power! [/SIZE]

[orly_andico]

1) it's probably the throttle position sensor. you see, the IACV stays open when the engine is at idle in order to maintain the RPM. however, when you press on the gas to rev up, the IACV closes (to save gas). I think when you press on the gas, the TPS indicates "press on gas" too early, so the IACV closes and the RPM drops.

If your FLOOR the gas, does the RPM dip? I would expect it does not, that you only see the RPM dip when you gently depress the gas pedal (e.g. kung nagtitimpla ka ng clutch). If so, then my money's on the TPS.

2) the '96 Civic has double wishbones front and rear AFAIK. Which translates into bloody expensive suspension repairs. Why not take it to Cruven or Zee and see if they can refurb your ball joints etc? they have a warranty pa.

[tonyboy]

thank sir for your reply... how can i adjust my TPS or do i need to replace it na?

[youngrider]

Bro, IMO it would be best to have your car undergo Diagnostic Engine Scan. Malay mo baka Voltage drop lang yan because of Corroded or bad Ground points.

[tonyboy]

thanks sir.. will do as advised.

[tonyboy]

1) it's probably the throttle position sensor. you see, the IACV stays open when the engine is at idle in order to maintain the RPM. however, when you press on the gas to rev up, the IACV closes (to save gas). I think when you press on the gas, the TPS indicates "press on gas" too early, so the IACV closes and the RPM drops.

If your FLOOR the gas, does the RPM dip? I would expect it does not, that you only see the RPM dip when you gently depress the gas pedal (e.g. kung nagtitimpla ka ng clutch). If so, then my money's on the TPS.

2) the '96 Civic has double wishbones front and rear AFAIK. Which translates into bloody expensive suspension repairs. Why not take it to Cruven or Zee and see if they can refurb your ball joints etc? they have a warranty pa.

Mukang tama ka sir orly, I did a little experiment the other day. Disconnected the TPS then after depressing the gas walang nang biglang drop ng RPM even while the A/C is on. Kapag normal load naman my idle is steady, pag may A/C lang nagloloko.

Is possible ba na my TPS is not working properly but walang CEL? Possible din kaya na flow ng kuryente ang issue kaya may sudden drop ang RPM?

[speed unlimited]

[SIZE=3]Hi, just a newbie at tsikot here so please bear with me. Here are some problems with my 96 civic that hopefully the expert members can help me with. [/SIZE]

• [SIZE=3]Idling – with no load the rpm stays constantly at 800 but when the a/c is on and I rev the engine, it drops to almost 300 to 500 but goes back to 900 rpm. I’ve been driving the car for almost 8 years now and I’m pretty sure that she was not like that few years back. Did the following things: cleaned throttle, cleaned IACV and replaced PCV valve. Any ideas on other parts to check?[/SIZE]
• [SIZE=3]Bump steer – every time I go through uneven road, pot holes or rail tracks, the steering becomes a hassle as it moves left and right by itself. Mechanic replaced the following: upper arm assembly (L and R), and rack. The rest of the suspension according to him was OK. Did complete alignment and balancing of the wheels too. After doing these, the bump steer is still a headache. Any ideas?[/SIZE]

[SIZE=3]Thanks and more power! [/SIZE]

You did not mention MAF sensor when dirty affect drop on your idling.

[JunBargas14]

mayor christ, my 4 spurplugs are new,newly tope,changed oil pero ganun parin.

any other reason bakit parang walang effect sa makina kung aangat yung #3 spurplug ko?

Im planning to go for a compression test kasi ang sabi ng mekaniko sa shell alabang-zapote road e top overhaul daw.

honestly,parang wala naman problema yung car.malakas pa din hayaw niya pero sa idle lang ang problema especially kung aircon is on.

hindi naman basa yung spurplugs ko or sunog pero pinalitan ko na lang.

Thanks sa reply.