i have a vauxhall astra 1.7 tds .98modle its got a isuzu engine init and i put

[sprinklerman006]

new glow plugs in and im still? having probs starting it once started its fine . the last owner says it ran on bio fuel .how do i change fuel filters with out a pump there 2 fill up the fuel filter with diesel or any good advice

 

[doug r]

you need to check the glow plugs are indeed working ?
make sure you have battery voltage at the g/plugs with ignition on,then you need to find out the amp draw, this should be about 100 amps for all 4 or 25amps per plug.
it may be a fuel problem, pulling in air from some where.it may be the battery is not up to the job and not turning it over quick enough.....and so on..........
if you are a member of the RAC/aa ask them to diagnose, this is your best and cheapest option. good luck