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Home > Maintenance & Modifications > NOT SOLVED! CAM SENSOR heat soak FL2-3.2 cranks, no start.
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Waiheke



Member Since: 29 Jun 2025
Location: Waiheke
Posts: 27

New Zealand 2008 Freelander 2 i6 SE Auto Tonga Green

Is your crankshaft sensor clean and free from oil? The vacuum pump for the brake is known to leak oil and it will eventually drip down to the crankshaft sensor. Rebuilding the seal on the vacuum pump isn’t hard. I’m very surprised that you got a bad fuel pressure sensor.
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I have ordered a crankshaft sensor and will have a look after it arrives. It seems to be a slightly less accessible job than the top side sensors.

The fuel pressor sensor was soaked with petrol (gasoline) inside the electrical connection. It was not dripping, but clearly a seal was not doing its job. I'm not sure if that caused the 5V reading, but when I put the original back in, the fault code went away.

After that I replaced the cam shaft sensors (I do one job at a time, so if something fails, I don't conflate the two), and that seems to have done the trick.[/i]

EDIT... No, it was not the cam sensors. See next post.


Last edited by Waiheke on 28th Aug 2025 4:30 am. Edited 1 time in total

Post #451236 22nd Aug 2025 5:22 am
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Waiheke



Member Since: 29 Jun 2025
Location: Waiheke
Posts: 27

New Zealand 2008 Freelander 2 i6 SE Auto Tonga Green

Sad Glum. Today I drove out to the quarry, about 12km with several stops along the way. Was there for about 15 minutes and when I went to start the car, no joy. I would try all sorts of variations, and occasionally it would sound like it would almost catch but next time it would not.

As they call it "heat soak", I then opened the bonnet (hood) and removed the foam/plastic cowling. It did feel warm, although the temperature gauge was in the middle, the drive over did not exceed 50 km/h and the weather is about 15° (60°F), sunny. I let it sit for a few minutes with the bonnet open then cranked and it started instantly. I drove to a service station and bought a can of starter fluid but did not need it.

With an old, analogue car I would have concluded it was a vapour lock, but with digital sensors everywhere, I read that it could be the ECU is confused, not getting the right signal. I replaced the cam sensors and the trips that previously triggered the no-go were fine, so I figured I solved it. Not so.

I ordered a crankshaft sensor, but unlike the diesel Freelander 2, access to remove and replace is not clear. The online videos I find are for diesel. If anyone knows how to do it - what has to be removed to get to it, I would appreciate instructions (and pics).

I've also ordered a Bosch fuel pressure sensor.

Does anyone know how the fuel injection system actually works? What signals does the ECU read to know how to start the car?

Post #451357 28th Aug 2025 4:29 am
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