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Thread: Diesel Pajero cold starting issue

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    Default Diesel Pajero cold starting issue

    Hi all
    Recently, I purchased 1992 model Pajero diesel 2.5TD. Im facing the problem of cold start. In the morning, it refuses to start even after 10 heaters. After 12 o clock noon, it starts after 2nd or 3rd try. And after starting once, then without any heater, it is half self start. Also gives smoke at start.
    It is driven more than 300k kms. I want to know from experts whether it is due to glow plugs, timing, valve seals, or nozzles of pump.
    I know the problem will be resolved after this cold weather but want to dig out the reason. Also suggest any other solution if needed.
    Shall be grateful for this help.
    Regards


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    No response from their landline number. Have sent email, let's see what is the response.

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    Quote Originally Posted by Xulfiqar View Post
    check all tune items correctly and note each work on a book.

    meaning - get it to factory specs. check and adjust valve clearance, check and adjust pump timing and nozzle break pressure, the leak on the pump is a cause of vibration too as the pump has frothy fuel in it.
    So, changed today the timing belts, timing belt bearings, pump timing adjusted, valve clearance/tappet adj, brand new nozzles set(Denso) installed, all drive belts changed, intercooler serviced, fuel filter chaged etc. Whole day spent but injection pump service/calibration is left. Hope to get it service and all remaining works done soon Insha Allah. Pick has improved too much...now running like a new engine. Vibration of engine decreased too.

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    Quote Originally Posted by Xulfiqar View Post
    so you prefer to drive around a bad working engine? misfire in a diesel can cause you mechanical repairs, specially on a 4 cyl engine as it will run unbalanced.

    Cummins Sales & Services Pakistan (Pvt) Ltd

    contact these folks and ask if they will repair the injection pump, they are the best in the business. I have used their services a lot. The pump and injectors are calibrated and certified. The facilities are supremely clean and dust free and their equipment is very good.

    Never had a problem.

    For information sake: Your engine uses a Bosch VE type fuel injection pump clone. (if they ask).
    @Xulfiqar
    So, once again need suggestion. No response from the above mentioned link. Should I go for injection pump service from a reputed diesel lab, because there is some leakage in it?

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    no numbers in all cities??

    thats very strange. I only used their services because no other shop Ive ever visited in Karachi spoke any sort of sense. They just open up the part, clean it, slap it back and only take responsibility till the engine starts - they dont care about fuelling, idle control etc.

    Thats why I wont suggest any ustadee unless you interview the ustaad and make sure he know's what he's doing.
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    Quote Originally Posted by Xulfiqar View Post
    no numbers in all cities??

    thats very strange. I only used their services because no other shop Ive ever visited in Karachi spoke any sort of sense. They just open up the part, clean it, slap it back and only take responsibility till the engine starts - they dont care about fuelling, idle control etc.

    Thats why I wont suggest any ustadee unless you interview the ustaad and make sure he know's what he's doing.
    I tried phone numbers of rawalpindi office, no response by email even.
    BTW, Once I was in Karachi and serviced my Nissan Sunny CD17 diesel pump, and it was a good experience as long as I kept it. I want to know whether pajero's pump is a different type? All are advising me not to disturb it.

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    its the same VE pump. They are advising due to the "shops" messing it up. These cummins people do all the work in karachi. e.g. if you gave your pump to them, they will send it to karachi for calibration.

    Call their karachi office UAN no.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by Xulfiqar View Post
    its the same VE pump. They are advising due to the "shops" messing it up. These cummins people do all the work in karachi. e.g. if you gave your pump to them, they will send it to karachi for calibration.

    Call their karachi office UAN no.
    Thank u boss. I shall try again.

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    Quote Originally Posted by Xulfiqar View Post
    its the same VE pump. They are advising due to the "shops" messing it up. These cummins people do all the work in karachi. e.g. if you gave your pump to them, they will send it to karachi for calibration.

    Call their karachi office UAN no.
    Today checked the pump. The leakage was outside the pump in the return line. A pipe had a loose grip so changed it and now no leakage.
    @Xulfiqar @capsat
    Today changed all mounts of gear and engine and now there is some vibration while engine is idling. Actually, search for Genuine mounts failed even after roaming much here and there on many shops/kabariya in Rawalpindi so Thailand made (best available in rawalpindi) were installed. Will this vibration reduce with time or not?

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    Quote Originally Posted by Xulfiqar View Post
    its the same VE pump. They are advising due to the "shops" messing it up. These cummins people do all the work in karachi. e.g. if you gave your pump to them, they will send it to karachi for calibration.

    Call their karachi office UAN no.
    Mechanic is of the view to install a vacuum pump of hyundai shehzore in my Pajero. Please elaborate. Can this help to improve cold starting. BTW I changed all 4 glow plugs too with kabli set.

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    @Xulfiqar bhai
    Any suggestion/help regarding above posts.

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    please share what is net result after swapping thailand made egine mounts, how many did you changed engine only? or the transmission's as well?
    - www.crackwheels.com - A skilled Dictator is much more beneficial to Country......than a Democracy of Ignorant people

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    Quote Originally Posted by capsat View Post
    please share what is net result after swapping thailand made egine mounts, how many did you changed engine only? or the transmission's as well?
    2x side mounts of engine and one big mount for tranmission...these are Thailand made. But one small mount for 4x4 is local made because it was not available even Thai made.

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    Quote Originally Posted by AmeerUsman View Post
    Mechanic is of the view to install a vacuum pump of hyundai shehzore in my Pajero. Please elaborate. Can this help to improve cold starting. BTW I changed all 4 glow plugs too with kabli set.

    Sir go for the diesel power systems route, they are the best in this field

    There is no one in Lahore who can adjust and tune these pumps and injectors

    Sent from my SGH-I747M using PW Forums mobile app
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    Quote Originally Posted by syncview View Post
    Sir go for the diesel power systems route, they are the best in this field

    There is no one in Lahore who can adjust and tune these pumps and injectors

    Sent from my SGH-I747M using PW Forums mobile app
    Sir thanx for the reply. Actually I am in Rawalpindi. Further, only pipe was leaked and no issue with the injection pump. btw thanx for help.

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    Quote Originally Posted by AmeerUsman View Post
    Mechanic is of the view to install a vacuum pump of hyundai shehzore in my Pajero. Please elaborate. Can this help to improve cold starting. BTW I changed all 4 glow plugs too with kabli set.
    vacuum pump has nothing to do with fuelling
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    Quote Originally Posted by Xulfiqar View Post
    vacuum pump has nothing to do with fuelling
    Thanx sir. What is the device/assembly installed on upper side of fuel filter? The mechanic was saying it a "lifty pump" or a "vaccum pump".

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    the unit on top of the fuel filter is a prime pump, its only used to prime the big round filter and injection pump, you can install a unit from whatever you want on it, shehzore, sunny, patrol, doesnt matter.

    The vacuum pump on the engine is the part that the brake booster suction pipe connects to. (look on the alternator)
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    Quote Originally Posted by Xulfiqar View Post
    the unit on top of the fuel filter is a prime pump, its only used to prime the big round filter and injection pump, you can install a unit from whatever you want on it, shehzore, sunny, patrol, doesnt matter.

    The vacuum pump on the engine is the part that the brake booster suction pipe connects to. (look on the alternator)
    Now I understand. Thanx

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