Nissan Primera P12 coolant problem

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   Hi guys,
ok so the mechanic I took my P12 to said I had a leaky oil pressure sensor and showed me where it was, I ordered one, it arrived (without any washer or gasket) so today I tried to fit it. Can you imagen my surprise when I unscrewed it and coolant started gushing out of the hole?

I put it back in but now I know the cylinder head is empty of coolant, I have tried running the engine to get it to circulate but instead of the air coming out of the top of the radiator I get  coolant.

The air bleed nut on the pump is below where I suspect my coolant level is so I am loath to crack that.

My question is if I leave the engine idling for 10 mins or so will the air work its way round to the radiator and out so I can top it up again? Because as it stands the radiator is showing full (coolant visible when I remove the cap).

Advice?

Many thanks 

Paul K.  

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Bohica Members Profile Send Private Message Find Members Posts Add to Buddy List NPOC Guest Joined: 16 Jul 2018 Location: Grimsby Online Status: Points: 26	Post Options Post Reply Quote Bohica Report Post Thanks(0) Quote Reply Topic: Nissan Primera P12 coolant problem Posted: 25 Mar 2020 at 11:28am
	Hi guys, ok so the mechanic I took my P12 to said I had a leaky oil pressure sensor and showed me where it was, I ordered one, it arrived (without any washer or gasket) so today I tried to fit it. Can you imagen my surprise when I unscrewed it and coolant started gushing out of the hole? I put it back in but now I know the cylinder head is empty of coolant, I have tried running the engine to get it to circulate but instead of the air coming out of the top of the radiator I get coolant. The air bleed nut on the pump is below where I suspect my coolant level is so I am loath to crack that. My question is if I leave the engine idling for 10 mins or so will the air work its way round to the radiator and out so I can top it up again? Because as it stands the radiator is showing full (coolant visible when I remove the cap). Advice? Many thanks Paul K.
	I think therefor I am.

essNchill Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Admin Group Nissyen Gaius Fluff Joined: 05 Feb 2003 Location: Hampshire Online Status: Points: 62606	Post Options Post Reply Quote essNchill Report Post Thanks(0) Quote Reply Posted: 25 Mar 2020 at 12:01pm
	What's the "oil pressure sensor" got to do with this? I'm confused.

Bohica Members Profile Send Private Message Find Members Posts Add to Buddy List NPOC Guest Joined: 16 Jul 2018 Location: Grimsby Online Status: Points: 26	Post Options Post Reply Quote Bohica Report Post Thanks(0) Quote Reply Posted: 25 Mar 2020 at 12:21pm
	Thats what this "mechanic" said was at the front of the engine leaking the oil I could see, but as I said it turns out to be the water temp sensor, so not only did I buy the wrong thing its not even the system he told me it was. So now I also have a coolant problem to go with my oil problem..... you cant write this stuff lol Paul K.
	I think therefor I am.

essNchill Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Admin Group Nissyen Gaius Fluff Joined: 05 Feb 2003 Location: Hampshire Online Status: Points: 62606	Post Options Post Reply Quote essNchill Report Post Thanks(0) Quote Reply Posted: 25 Mar 2020 at 12:36pm
	Right got you :) So you have both a leak from the OPS and also an issue with the WTS.

roy.2 Members Profile Send Private Message Find Members Posts Add to Buddy List NPOC Elite Member Joined: 23 Jan 2010 Location: Nr Bourne Lincs Online Status: Points: 3976	Post Options Post Reply Quote roy.2 Report Post Thanks(0) Quote Reply Posted: 25 Mar 2020 at 1:24pm
	Paul. Squeeze the bottom hose, that should send air to the top.
	Roy