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Thread: starting problem on cng when, alto cng is hot

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    mountainier's Avatar
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    Default starting problem on cng when, alto cng is hot

    hi to all PWs,


    Guys i have come across a serious problem in the last month or so,


    whenever my engine is hot and i try to start the vehicle the car does not start,


    afterwards i have to start it on petrol and then convert it to cng,


    however if let the car cool down for say 5 mins the car comfortably starts on cng,


    i am puzzled need expert advice, thanks

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    Default

    HI!
    I hav seen same problem in a suzuki van recently.Some mechanics said that 1 or more of the pistons is getting stiky.Others said that there was problem with the self starter.

    Later on problem was rectified by getting the starter repaired.
    Reason that car starts on petrol n not on cng while hot:

    1.Petrol is more powerful fuel than cng

    2.Cng heats up the engine during combustion more than petrol does being dry in nature.
    I recommend to get ur veh checked by a good electrician first for starter n then by an engine mechanic for pistons if needed.
    Hope it hepls u somewhat.

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    Default

    ^^^Try to check on mehran (or any vehicle who's temperature needle is not stagnant to the middle) in winter season, car will heat up quickly on petrol than on CNG. Try it and prove me wrong


    @poster


    Ask electrician to connect a relay to the CNG kit and problem will be gone inshAllah
    Suggestions required

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    Default

    maybe the problem is with your distributer get it checked through a good electrician...the soldered wires in distributer sometimes get weak and short adequate current to the plugs and hence starting problem occurs moreover it ll not bother u at petrol because combustion rate of petrol is greater than cng however it ll be a headache to start a car at gas whenever its hot so first get ur distributer checked!

    do let us know aswell wat u did and how u ll get it fixed

    best regards
    copperzz

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    Default

    thanks guys,, for your suggestions

    i will get my car checked tommorow inshallah
    will get back to u after that

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    Default

    goto some electrcian. . .and ask him to add rectifier to startr . .. . it will cost u arnd rs 50


    n labor chrge 100


    prblm solve


    else buy a new starter. . . .

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    Meray bhai ye seedha seedha electrical fault hay,phalay bettery check kerwao aur phir self,because garam honay k baad self load layraha hay,jaab aap cng per start kertay ho tu self k ziada current lanay ki wajha se cng related electrical stuff or ignition coil ka current kum ho jata hay aur starting mein mushkil hoti hay.
    Never loose hope in life,every step gives u something.

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    Default

    went to electrician yesterday...it was an electric problem,

    electrician installed the cutt out with cng kit and now its working well mashallah,,
    thanks for your info.....
    tc

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