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motor cu probleme

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cindanni
post 21 Mar 2009, 14:36
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am un renault laguna 1.6 16 valve din 98.Pana de curand cand il porneam ramanea turat la 1500 2000 dar apoi dupa ce acceleram de cateva ori sau il opream si il porneam in mod repetat isi reveneau la loc turatiile.de asemenea se mai auzeau niste bolboroseli si un carait enervant.De putin timp mi-am schimbat distributia dar acum motorul e subturat moare cateodata,iar cand merge scoate sunete ciudate. In afara de sunetele pe care le scoate motorul trepideaza puternic .SE poate ca distributia sa fie pusa aiurea sau are alte probleme?Va rog sa imi spuneti daca ati patit asa ceva;mentionez ca am masina de 2.5 ani si pana acum nu am schimbat la ea nimic .Si mai o chestie am computer de bord care ma cearta cand nu am centura.bec ars,frana de mana trasa,usa deschisa,etc dar nu se aprinde nici la service nici la stop.

This post has been edited by cindanni: 21 Mar 2009, 15:08


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daniellu
post 21 Mar 2009, 18:13
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Dupa doi ani si juma mai trebuie sa pui si pe masina.Cred ca motorasul relanti avea o problema si inainte(1500-2000 e o turatie cam mare de relanti chiar si la rece),dar acum aceasta s-a acutizat.Indicata e o diagnoza,dar si prietenii sunt buni la ceva:cauta o masina identica,schimba motorasul de pe cealalta,da-i o cheie si vezi ce se intampla.
Apropos de coputer,verifica temeinic becurile si functionarea lampilor.

This post has been edited by Lupan Daniel: 21 Mar 2009, 18:18


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cindanni
post 21 Mar 2009, 19:04
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multumesc domnule ma voi duce luni la o diagnoza computerizata.Voi incerca de asemenea si varianta cu motorasul

21 Mar 2009, 19:10:
computerul e ok intrucat ma avertizeaza daca am un bec ars o usa deschisa nu am centura,sau am frana de mana trasa>Dar in cazul de fata nu imi semnalizeaza nimic

This post has been edited by cindanni: 21 Mar 2009, 19:10


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ricochet2
post 21 Mar 2009, 21:03
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Aia e sinteza vocala.


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cindanni
post 21 Mar 2009, 21:07
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nici nu se aprinde nici un bec ,si nici avertizarea service sau stop


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Johnny78
post 22 Mar 2009, 23:31
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distributie pusa prost, probabil. Motoras relanti sigur de schimbat.


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GabySV
post 23 Mar 2009, 11:39
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Am observat ca la pornirea la rece urca in 2000RPM si apoi scadea dar treptat si nu aproape instant ca la alte masini, adica ajungeam la 1200-1300 cam in 2-3 min!
Ideea este ca mi s-a parut normal tinand cont ca un motor mai mare se incalzeste mai greu.
Sa fie totusi o uzura la motorasul buclucas?


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strumfuadi
post 23 Mar 2009, 11:51
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La motorasul buclucas sau la senzorul de temperatura lichid racire.


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GabySV
post 23 Mar 2009, 17:11
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.......mersi Adi...
Cred ca asa o sa ramana pana nu se strica complet......cred ca este o caruta de bani motorasul sau senzorul!
Mersi inca odata!


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strumfuadi
post 23 Mar 2009, 19:09
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Motorasul e 235 lei, iar senzorul de temperatura se pare ca e circa 15 EUR (cod renault 82 00 561 449)..

PS: site'urile le'am pus ca sa'ti faci o idee cum arata piesele, ce coduri si cam ce preturi au...

This post has been edited by strumfuadi: 23 Mar 2009, 19:10


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Johnny78
post 24 Mar 2009, 13:10
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ai incercat sa il cureti si fara rezultat?


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GabySV
post 24 Mar 2009, 16:45
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Voi incerca sa-l curat deocamdata sa vad cu ce rezultate!
Am mai observat ca dupa schimbarea tobei imi scade turatia aproape instant in 1200RPM la -2G!
Multumesc frumos pentru sfaturi! imbratisare.gif


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dorin85
post 24 Mar 2009, 17:25
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Cred de reglajul turatiei se ocupa sondele lambda, iar senzorul de temperatura este doar ca indicator si alarma.


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strumfuadi
post 24 Mar 2009, 17:37
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QUOTE(dorin85 @ 24 Mar 2009, 17:25)
Cred de  reglajul turatiei se ocupa sondele lambda, iar senzorul de temperatura este doar ca indicator si alarma.
*


iar ca inchidere centralizata cine e? tongue.gif

Sonda(ele) lambda da doar un feedback al nivelului de oxigen din gazele de esapament, realizand o bucla inchisa. In functie de info de la lambda, ECU regleaza timpii de injectie pentru a mentine raportul stoichiometric. De relanti se ocupa motorasul pas cu pas, iar ECU il comanda in functie de temperatura lichidului de racire.


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dorin85
post 24 Mar 2009, 18:04
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Nu stiu cum poate masura sonda lambda nivelul de oxigen, poate ai vrut sa zici temperatura gazelor (sonda din cate stiu este lipita, nu ajunge in contact cu niciun gaz). Stiu ca "debitmetrul" se ocupa de masurarea "aerelor" Poate ma insel , poate tu stii mai multe nedumerire.gif


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GabySV
post 24 Mar 2009, 20:14
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Sonda nu are nici o treaba cu turatia!
Am zis ca voi curata mororasul si senzorul dar problema este ca nu stiu unde sunt pozitionate......


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strumfuadi
post 24 Mar 2009, 21:16
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QUOTE(dorin85 @ 24 Mar 2009, 18:04)
Nu stiu cum poate masura sonda lambda nivelul de oxigen, poate ai vrut sa zici temperatura gazelor (sonda din cate stiu este lipita, nu ajunge in contact cu niciun gaz).

Asa arata o sonda lambda. Observa gaurelele prin care citeste gazele de esapament. smile.gif


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just_illusions
post 24 Mar 2009, 22:40
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as vrea sa stiu si eu ce este o sonda lambda si care e rolul ei ( mai in detaliu ).....cand am fost la tester mi -sa spus ca singura problema care o are masina este acesta sonda lamda, si ca ar fi 2 sonde la mine pe masina ...defecta fiind cea din aval de catalizator ( aratandu-mi doua grafice pe acel dispozitiv conectat la mufa masinii )
.... care-i rolul acestei sonde din aval de catalizator si de ce ar fi fost mai nasol daca nu se inregistra activitate pe cea din amonte de catalizator.....mi s-a zis ca mai pot merge linistit asa si ca singura problema fiind o usoara crestere a consumului de carburant!


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Johnny78
post 25 Mar 2009, 11:58
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Pai asta face sonda amonte, regleaza consumul.

This post has been edited by Johnny78: 25 Mar 2009, 11:59


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just_illusions
post 25 Mar 2009, 14:54
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pey si cea aval ?ce dreq mai face mancaiash sufletul ei!


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Johnny78
post 25 Mar 2009, 15:08
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cea din aval masoara nivelul de azot din gazele de esapament
cele doua, impreuna cu alti senzori determina nivelul de oxigen din amestecul carburant, mai exact raportul dintre oxigen si combustibil.


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strumfuadi
post 25 Mar 2009, 15:23
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ambele sonde masoara acelasi lucru: nivelul de oxigen din gazele de esapament.
a doua sonda (din aval) a fost introdusa doar pentru a monitoriza eficienta catalizatorului.


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Johnny78
post 25 Mar 2009, 17:29
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Esti sigur, frate strumpf?


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strumfuadi
post 25 Mar 2009, 19:15
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da frate johnny.

cicin', inca un post..


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Johnny78
post 25 Mar 2009, 19:44
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eu parca altceva am inteles di Wikipedia...


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just_illusions
post 25 Mar 2009, 21:00
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mama ce ma-ti lamurit ...


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ricochet2
post 25 Mar 2009, 22:30
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ma-ti ?!? huh.gif


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strumfuadi
post 26 Mar 2009, 00:16
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@doar iluzii: nu ne injuri, nu? unsure.gif


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just_illusions
post 26 Mar 2009, 06:50
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... m-ati ! rolleyes.gif tongue.gif


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Johnny78
post 26 Mar 2009, 14:19
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pai ne injura saracul om ca iar vorbim pasareste, eu si fratele strumpf


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