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  1. Join Date
    Jan 2015
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    4,580
    #21
    ^ most probably sa idle yan. i experienced that with my LXi before kasi pag on ng aircon bababa yung rpm so talagang mag vibrate. yung engine support naman other than vibration ay iba pang sound kang marinig kung nakadaan ng potholes.

  2. Join Date
    Mar 2008
    Posts
    6
    #22
    Sa idle po daw mga sir. Ang una po nya pinagawa is pina reface yung top cylinder baka daw singaw. Kaso ngayun po mas lumala wala po menor.

  3. Join Date
    Nov 2014
    Posts
    101
    #23
    Quote Originally Posted by nashimoto View Post
    sir bka makatulong ako sa inyo. nag palit rin ako ng cvt tranny c/o mel - sobrang happy ako sa ngyari until bigla nag jerk jaz ko kapag mabagal to idle. nag drop rin rpm.. lalo na kapag bukas aircon. so cut the story short, ignition coils ang problema. kinakapos ng kuryente, nag jump at nag misfire.. lalo na kapag bukas aircon ko.
    try nyo testing.. while car is on P, locate the ignition coils tapos alisin nyo yung power source one by one, kapag may inalis kayo power source tapos hindi nag react yung makina then that ignition coil is busted! replace ignition coil and spark para mas maganda. yung jazz ko vtec so apat na ignition coils at spark plugs.. ipon ako then pinalitan ko lahat.. ayon zoom zoom ang bilis na ulit with no issues. sana makatulong tong experience ko.
    +1 tama ito si sir nashimoto..... Learn from experience ito, ignition coils possibly the culprit wag agad jump sa transmission kse dapat kung transmission kahit di ka nakaaircon mag vibrate parin at kapusin sa RPM at may abnormal sound saka di ka makakatakbo ng 120kms/hr pag sira transmission mo...

  4. Join Date
    Apr 2015
    Posts
    28
    #24
    UP ko lang yun thread.

    Ganitong ganito din problema ng kotse ko A/T Civic VTI 99.
    Sumusumpong sya paminsan minsan kapag naka aircon pumipitik nagiging 0.
    Kapag off aircon ok naman sya.

    Diagnosis na ginawa dati ay pinalitan yun IACV/servo pero bumalik ulit kagabi.
    Ano pa kaya pwedeng dahilan? Pwede kaya compressor? Maingay na kasi compressor ko.

    - - - - - - - - - - - - - - - - - - - - - -

    UP ko lang yun thread.

    Ganitong ganito din problema ng kotse ko A/T Civic VTI 99.
    Sumusumpong sya paminsan minsan kapag naka aircon pumipitik nagiging 0.
    Kapag off aircon ok naman sya.

    Diagnosis na ginawa dati ay pinalitan yun IACV/servo pero bumalik ulit kagabi.
    Ano pa kaya pwedeng dahilan? Pwede kaya compressor? Maingay na kasi compressor ko.

  5. Join Date
    Jul 2012
    Posts
    329
    #25
    d po kaya kinakapos ng kuryente?

  6. Join Date
    Oct 2015
    Posts
    2
    #26
    ok pa po ba yung thread na to?

  7. Join Date
    Mar 2007
    Posts
    159
    #27
    Experienced this with my 97 civic with CEL code 14. i clean first the throttle body and IACV with break cleaner. gumanda ng konti takbo but meron prin konti problem sa idling. then i replaced the iacv sensor, but still the same. i checked the ECU, may konting sunog ako nakita na transistor. replaced the transistor(P25 from deeco). that solved the problem, nawala pa CEL indication.

    My Conclusion:
    Pag nag dumi ng husto ang IACV, na stock-up yung mechanical part at maaring ikasira ng IACV sensor. at pag nasira sensor, maari ding ikasunog ng transistor controlling the iacv sensor from ECU/computer box.

    Hope this help.

  8. Join Date
    Jul 2012
    Posts
    329
    #28
    mga sir madali at safe ba mag linis ng iacv? DIY ko na lang sana eh.. wala ba akong complications na ma eencounter?

  9. Join Date
    Mar 2014
    Posts
    901
    #29
    Quote Originally Posted by nashimoto View Post
    mga sir madali at safe ba mag linis ng iacv? DIY ko na lang sana eh.. wala ba akong complications na ma eencounter?
    May mga difficulties ka ma-encounter rin. What is your car ba? What is the problem that you need to clean your IACV? As like, sa model of our car, marami kang tatanggalin at may mga kailangan bilhin. Bago matanggal IACV sa model namin, kailangan mabunot tanggal muna ang TB(Throttle Body) sa intake manifold para mabunot tanggal ang IACV para malinis. Sa mga tatanggalin, ay ang mga connectors para sa MAF sensor, TP sensor, at IACV sensor. Dalwang hose connected sa IACV. Bunot tanggal rin Throttle cable at mounting bracket nito. Bibili ka rin nang gasket para sa throttle body. At kung ano pwede mo palitan habang bunot ang TB, bilhan mo na ng bago, kasi kapag nag-mount ka na uli ng mga binaklas mo, mahirap magpalit uli ng part na hadlang ang Throttle Body sa pagpalit nun, kasabay kaakibat pagpalit uli sa gasket ng Throttle Body.

    Sent from my UP+ using Tapatalk

  10. Join Date
    Jul 2012
    Posts
    329
    #30
    jazz 2005 po tsikot ko. minsan ko kasi pag pahinto ako or naka hinto (idle) eh masyado mababa rpm. one time bumagsak ng todo nag stall makina. baka madumi na iacv.

  11. Join Date
    Mar 2014
    Posts
    901
    #31
    Check muna throttle body, baka it needs cleaning dahil marumi. Check muna air filter, baka it needs replacement na. And fuel filter too.

    Sent from my UP+ using Tapatalk

  12. Join Date
    Jul 2012
    Posts
    329
    #32
    same solution solved the issue.. ignition coil is the culprit. nag back read ako nakita ko nag comment rin pala ako na palitan ignition coil to solve this issue. i did before pero my mistake was replacement part binili ko.. lasted for a year then eto bumalik nnmn. nag linis nko tb, iacv, replaced pcv valve and hose, checked alt, batt, checked compressor and fans, even adjusted tappets.. na resolved lang nung pinalitan ko lahat ng surplus ignition coils!
    now my car runs fine kahit may AC, pero nung na trafik ako sa QC sa kainitan ng araw, ayun maramdaman ko yung jerk at pag stall ulit. issue na ng honda yung ignition coils na pumapalya.. time to buy bnew orig honda ignition coils.

  13. Join Date
    Mar 2014
    Posts
    901
    #33
    It is better na brand new, kaysa surplus ignition coil.

    Sent from my UP+ using Tapatalk

  14. Join Date
    Jul 2012
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    329
    #34
    Quote Originally Posted by rodetor View Post
    It is better na brand new, kaysa surplus ignition coil.

    Sent from my UP+ using Tapatalk
    may kamahalan lang bnew orig na honda ign coil.. last time i checked with honda nasa 4.6k isa...

  15. Join Date
    Mar 2014
    Posts
    901
    #35
    A replacement will do, at least brand new. If you find the OEM from Casa much expensive. Surplus parts mostly here in our country are not surplus, they are used parts already.

    Sent from my UP+ using Tapatalk

  16. Join Date
    Jul 2012
    Posts
    329
    #36
    Quote Originally Posted by 1D4LV View Post
    check your compressor pulley, baka tumitigas na and nag strain sya sa makina.
    napapalitan ba bearing ng compressor?

  17. Join Date
    Jul 2012
    Posts
    329
    #37
    bought new hitachi ign coils, car is ok

  18. Join Date
    May 2011
    Posts
    189
    #38
    Same here. 2012 honda jazz 1.3 MT.. pgstuck ako sa traffic tapos nirev ko yung engine. after umakayat ung RPM Babagsak sia sa round 400RPM at manginginig bago bumalik sa around 600-700RPM pg naka idle. normal ba un? Kung no rev. 600-700RPM then pgmagoon un fan nasa 800RPM wlaang nginig. Pgnagrevrev lang at bumagsak na sa baba un needle.

  19. Join Date
    Jul 2012
    Posts
    329
    #39
    Quote Originally Posted by Philip0021 View Post
    Same here. 2012 honda jazz 1.3 MT.. pgstuck ako sa traffic tapos nirev ko yung engine. after umakayat ung RPM Babagsak sia sa round 400RPM at manginginig bago bumalik sa around 600-700RPM pg naka idle. normal ba un? Kung no rev. 600-700RPM then pgmagoon un fan nasa 800RPM wlaang nginig. Pgnagrevrev lang at bumagsak na sa baba un needle.
    reason why nag jerk car kasi mababa ang rpm. dapat nsa 700 to 900 ata pag idle.. tapos sasabayan pa ng aircon.. lalo mas kailangan mas mataas na rpm. ignition coils may not always be the culprit.. pero possible kasi pag kinapos ng bato ng kuryente from coils to plugs ayun babagsak nga rpm.. pwede rin yung iacv madumi na.. need linisin. kasi alam ko nakaka apekto rin yun kapag idle ang jazz natin. better have your iacv checked and cleaned.. pag wala parin consider changing the spark plugs, pag wala parin check mo pcv valve and hose baka may leak, pag wala parin be ready to buy a bnew set of ignition coils. based from my experience ito ha.. everytime nangyayari sakin ito, ignition coils palagi ang nakaka solve ng issue. another way to check kung coils nga eh kapag nararamdaman mo na parang "sinisinok" yung makina mo.. kasi kinakapos ng kuryente.. malamang ignition coils yun. goodluck sir

  20. Join Date
    Mar 2014
    Posts
    901
    #40
    Quote Originally Posted by Philip0021 View Post
    Same here. 2012 honda jazz 1.3 MT.. pgstuck ako sa traffic tapos nirev ko yung engine. after umakayat ung RPM Babagsak sia sa round 400RPM at manginginig bago bumalik sa around 600-700RPM pg naka idle. normal ba un? Kung no rev. 600-700RPM then pgmagoon un fan nasa 800RPM wlaang nginig. Pgnagrevrev lang at bumagsak na sa baba un needle.
    I've been experiencing it too for the last 10 years on our Honda City SX8. Sa ngayon, may sapantaha na ako ano ang dahilan kung bakit ganyan din katulad sa nae-encounter mo.

    Starmobile Up+

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Vibration + dropping RPM during initial acceleration when A/C is ON.