mmgemini Posted February 15, 2006 Share Posted February 15, 2006 I have an Alli-Sport aluminium header tank fitted to my Defender. Now I want to fit a low water level warning light sensor to the cooling system. I have the infirmation to fit switch Pt No PRC7925.The only problem being that this sensor is incorporated in the header tank cap,Mine being a different fitting. Today I fell over a Range Rover with the metal header tank and the level sensor.Enquiries at my dealer tells me that this sensor is PRC5077. So !! Are these sensors wired up in the same way. I have the diagram for PRC7925 but not PRC5077. HELP !!!! I eat rat poison. mike I can cause trouble in an empty house !! Quote Link to comment Share on other sites More sharing options...
western Posted February 15, 2006 Share Posted February 15, 2006 Here's PRC5077 item 3 hope it helps, haven't got any wiring connection info for it Quote Link to comment Share on other sites More sharing options...
mmgemini Posted February 15, 2006 Author Share Posted February 15, 2006 Yep I've got that bit Ralph. I want to know the difference[if any] in the wiring. Aparently there should be an interface with PRC7925.I have the wiring information to get past that interface. Does PRC5077 have the same interface??? Any information on the thread size for the nut??? I eat rat poison mike I can cause trouble in an empty house. Quote Link to comment Share on other sites More sharing options...
western Posted February 15, 2006 Share Posted February 15, 2006 Sorry don't have any other info Quote Link to comment Share on other sites More sharing options...
Paul Posted February 15, 2006 Share Posted February 15, 2006 Aparently there should be an interface with PRC7925.I have the wiring information to get past that interface. Is this a straight forward workaround Mike. I'd like to be able to get one of those sensors working on my Tdi. Paul Quote Link to comment Share on other sites More sharing options...
Niall_CSK Posted February 16, 2006 Share Posted February 16, 2006 I assume the integrated cap & float switch you are talking about is the plastic type fitted from RR efi 86 on, don't have access to my parts book at the moment. That type has a delay unit built into the wiring that stops it from flashing on & off irritatingly when cornering with it near the limit as it used to do on my older RR. Again I don't have my diagrams to hand. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted February 16, 2006 Author Share Posted February 16, 2006 I assume the integrated cap & float switch you are talking about is the plastic type fitted from RR efi 86 on, don't have access to my parts book at the moment.That type has a delay unit built into the wiring that stops it from flashing on & off irritatingly when cornering with it near the limit as it used to do on my older RR. Again I don't have my diagrams to hand. In a word Neil NO !!! LOL This sensor fits into the header tank.Which is what I want. As per Ralphs post. Had I had the plastic header tank all was straight forward,as I have all the information for that one from www.ep90.com/.php?id=67 The information is for PRC7925 which is the sender in the tank cap. I have PRC5077. Are they the same in the wiring so I can use the same set-up as PRC7925?? Paul. If you have the plastic header tank go to that link [if it works,if it doesnt E mail me and I'll forward it to you} all the information is there. Quote Link to comment Share on other sites More sharing options...
Paul Posted February 16, 2006 Share Posted February 16, 2006 In a word Neil NO !!! LOLThis sensor fits into the header tank.Which is what I want. As per Ralphs post. Had I had the plastic header tank all was straight forward,as I have all the information for that one from www.ep90.com/.php?id=67 The information is for PRC7925 which is the sender in the tank cap. I have PRC5077. Are they the same in the wiring so I can use the same set-up as PRC7925?? Paul. If you have the plastic header tank go to that link [if it works,if it doesnt E mail me and I'll forward it to you} all the information is there. Thanks for the link Mike. I got it to work using: http://www.ep90.com/index.php?id=67 Paul Quote Link to comment Share on other sites More sharing options...
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