Question about 1999 Isuzu Trooper

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Changed oil and fuel filters on 4jx1, will not start but cranks

What could be the problem pls asisst

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You must use 5/30 fully synth oil and i guess if you did that and still wont go its going to be air so pump away a bit longer on the primer .Should be some pressure there when its ready to go .

Posted on Jul 07, 2009

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As simon says, oil type is 100% critical, 5w30 fully synthetic only. These engines require oil pressure to be up to fire up. They also can have a lot of air get in when you change the fuel filter. Bleed the filter (10mm nut on side, open it a couple of turns, pump the primer on top till diesel squirts out then do up nut, tight ish, pump a bit more till the primer is hard.) and crank for 10 secs. If no joy, repeat priming. Did you change just one or both oil filters? If all this comes to no avail, drain the oil, and change the second (smaller) filter. This is the one that filters the oil to the injectors, and if the flow is restricted, will slow or stop the starting.

Posted on Jul 12, 2009

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I used repsol 5w30 fully synthetic oil and my oil pressure warning light keeps on blinking.

Posted on Sep 30, 2009

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