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The most common faults on a 300tdi is...
Feeling under powered:
Failing/failed lift pump, mounted on side of engine.
Engine stopping:
That wire and or plug connected to the fuel solenoid (on the back of the injector pump).
Hard starting or rough idle:
Leaking seal between fuel filter and housing.
Thats about all that will stop a 300tdi, such a great simple engine.
Regards
Daz
Some of the UK 300tdi's had fly by wire throttles just before the TD5 was introduced, not sure about Australia though. If it has throttle pedal sensor is it OK.
Also might be worth getting a clear bit of pipe and fitting it in-line to your fuel return line and seeing how much air is in the fuel line with the car running, could be drawing in air somewhere.
No fly by wire 300tdi in Australia
What did he do to hotwire the solenoid?Quote:
Originally Posted by scoota
Do it again to be sure, if it drives fine again then start tracing the system back.
The black plug would by my first suspect, they fatigue and get loose.
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Not sure exactly what he did there but he showed me a length of wire with an alligator clip. He said, "It ran like a rocket and didn't play up when hotwired." He then reconnected original set up and told me to return the car next week when they're going to replace the radiator filler because it was leaking a little. Not being a land rover mechanic he wondered if the defender had an auto cut out (Murphy switch) if it sensed overheating or any loss of coolant. Since he did this on Monday I've hardly had any issues - some very minor brief loss of power. From reading previous posts I'm wondering if the problem had been the connection to the pump and him changing between hotwiring made a better connection? I'm still not confident the problem's gone for good.
Cheers
Thats what i was thinking.Quote:
Originally Posted by scoota
Start at the pump and trace back the electrical system, prime suspect is the plug that connects to the pump, they fatigue and get loose (giving an intermittent connection and starving it for fuel) but it could be elsewhere (earth as in earlier posts)
Reach in and give the plug a wiggle, if it is loose id start there, look for corrosion & you can bend the internals with a small screwdriver to make it tight again as a temporary fix.
P.s. nothing fancy like an auto cutout in a 300tdi defender electrical system
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