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4g93 jerking..
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<blockquote data-quote="devalian" data-source="post: 4503936" data-attributes="member: 26780"><p>hi guys,</p><p></p><p>im driving wira 1.6 with 4g93. </p><p></p><p>for like last 2 months, my car suddenly got jerking. its ok when im driving 60kph and above or rather 2k rpm and above.</p><p></p><p>then i went to change my spark plug for some generic denso. it was fixed! (that is what i thought). </p><p>no more jerking, but it last only 1week +. then the problem revisit.</p><p></p><p>when i go for regular service (engine oil n oil filter), i ask the mechanic to check. apparently the newly changed spark plug covered with oil, he claimed it was engine oil. i was wondering is it petrol mixture or engine oil?</p><p>he clean it and dry it for me. then the car is ok for a few days. </p><p></p><p>as u can guess, my car is still jerking now.</p><p></p><p>but the thing i found it weird is, if i always drive on highway, nothing occur. i pour some fuel enhancer into fuel tank to try, it was ok for a while, then problem again.</p><p></p><p>the best thing is, if i off my Aircond compressor (blower still on), the car got no jerk AT ALL. haizz</p><p>but if it is compressor problem, wth will the spark plug covered with engine oil?</p><p></p><p>if injection problem, why if i off compressor, then the car ok. :hmmmm:</p><p></p><p>for service record, i top overhaul my engine last year, changed radiator, radiator cap, air filter, spark plug, spark plug cable, clean TB, reset ECU (unplug battery), alternator.</p><p></p><p>is that really compressor kong? or distributor or fuel injection problem?</p><p></p><p>anyway, my wira is about 10 years old like tat. mileage 220k now.</p></blockquote><p></p>
[QUOTE="devalian, post: 4503936, member: 26780"] hi guys, im driving wira 1.6 with 4g93. for like last 2 months, my car suddenly got jerking. its ok when im driving 60kph and above or rather 2k rpm and above. then i went to change my spark plug for some generic denso. it was fixed! (that is what i thought). no more jerking, but it last only 1week +. then the problem revisit. when i go for regular service (engine oil n oil filter), i ask the mechanic to check. apparently the newly changed spark plug covered with oil, he claimed it was engine oil. i was wondering is it petrol mixture or engine oil? he clean it and dry it for me. then the car is ok for a few days. as u can guess, my car is still jerking now. but the thing i found it weird is, if i always drive on highway, nothing occur. i pour some fuel enhancer into fuel tank to try, it was ok for a while, then problem again. the best thing is, if i off my Aircond compressor (blower still on), the car got no jerk AT ALL. haizz but if it is compressor problem, wth will the spark plug covered with engine oil? if injection problem, why if i off compressor, then the car ok. :hmmmm: for service record, i top overhaul my engine last year, changed radiator, radiator cap, air filter, spark plug, spark plug cable, clean TB, reset ECU (unplug battery), alternator. is that really compressor kong? or distributor or fuel injection problem? anyway, my wira is about 10 years old like tat. mileage 220k now. [/QUOTE]
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