jgone12 Posted February 25, 2010 Share Posted February 25, 2010 Hi I'm having problems with my fuel pump it runs fine for 1 hour or so and stops any help please thank you Quote Link to comment Share on other sites More sharing options...
leftover z Posted February 25, 2010 Share Posted February 25, 2010 Do not drive more than 59 minutes round trip, or get a new pump Quote Link to comment Share on other sites More sharing options...
jgone12 Posted February 26, 2010 Author Share Posted February 26, 2010 I replace pump and flush the tank and replace filter Quote Link to comment Share on other sites More sharing options...
leftover z Posted February 26, 2010 Share Posted February 26, 2010 (edited) I replace pump and flush the tank and replace filter Are you sure the pump is actually shutting off? Was it a new or rebuilt pump? Nissan or aftermarket? If the pump is really turning off, if might be overheating. Just because it is new doesn't mean it's good. I've had to replace 2 alternators and 3 starters within 6 months. All were new, but not Nissan parts. Just a thought. Edited February 26, 2010 by leftover z Quote Link to comment Share on other sites More sharing options...
jgone12 Posted February 26, 2010 Author Share Posted February 26, 2010 IT WAS A USED PUMP BUT THE NEW AND USED PUMP HAVE THE SAME PROBLEM. Quote Link to comment Share on other sites More sharing options...
jgone12 Posted February 26, 2010 Author Share Posted February 26, 2010 I have a 280z 1978,I did find a relay heating up do not know if thats causing any problem do not know for shore if this is the fuel pump relay. Quote Link to comment Share on other sites More sharing options...
Daeron Posted February 26, 2010 Share Posted February 26, 2010 I've had to replace 2 alternators and 3 starters within 6 months. All were new, but not Nissan parts. Just a thought. New.... or "Remanufactured" by the lowest bidder in a sweatshop factory that replaces failed components and forgets to check anything else for impending failure? Go buy brushes and bearings and rebuild your own starters and alternators. Save 50 bucks, keep junk out of junkyards and know it is done right. To the OP: It is probably your fuel pump relay that is the problem. Many of us have discovered that previous owners bypassed the fuel pump relay entirely and custom wired the fuel pump with a switched, fused 12V line. This is NOT a good idea. http://forums.hybridz.org/showthread.php?t=135748&highlight=efi+bible+step That should help you in your diagnosis. Quote Link to comment Share on other sites More sharing options...
jgone12 Posted February 26, 2010 Author Share Posted February 26, 2010 That was really helpful thank you for your support Quote Link to comment Share on other sites More sharing options...
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