starting

cremator said:

hi all wife tells me99L series not starting first time its takeing 2-3 turns before it starts. changed the 3 glow plugs about 2 years ago what else could cause this promblem many thanks only dose it first thing in the mornings

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chromiumuk said:

Would advise checking all 4 glow plugs, making sure that they receive a good 5 seconds or more power & also check the state of your battery & charging system. 4 new glow plugs could make all the difference.

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chromiumuk said:

Book it in to an independent garage if it's really tricky, it would be worth it for piece of mind & shouldn't cost a fortune. I run a Td4 myself, so can't help with any tips, but some of the other guys here should be able to help. Good Luck.

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chromiumuk said:

You can unbolt the wiring loom & measure the resistance of each plug using a multimeter set to ohms range. You don't need to remove the plugs but the wiring needs to be disconnected from them as they are wired in parallel. From memory I believe about 0.7 or 0.8 ohms is healthy, high resistance means the plug is burnt out. Don't forget your meter leads are usually 0.2 - 0.3 ohms resistance by themselves. Also use your meter to check the voltage to the plugs first thing in the morning & make sure they get enough of a chance to glow (at least 5 seconds). To see the physical condition of the plugs does mean their removal. If your battery & charging system are good, then I would look to the glow plugs as they are the next easiest option. Also run a good quality injector cleaner through such as Millers powersport 4 diesel additive to keep the injectors clean & spraying properly.

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sandgroper said:

Most people dont worry about the plug behind the fuel pump , even bmw , after cheking plugs as advised ealier , then check fuel filter maybe blocking up & also for air leaks on tank side of pump .

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