What is your question?
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What is your question?
I replace the fuel pump assembly in my 2007 tundra. It’s not getting any power to it. I have checked all of the relays for voltage and continuity, and they are all good. I’m thinking next is checking for ground on the wiring harness to the fuel pump any ideas? I’m desperate!! Please help!!
How long has your 2007 Toyota Tundra had this problem?
5 days
2 Replies
Test for power at pump while a helper is CRANKING the engine.. You can’t just turn the key on for testing - engine must be rotating!
Hello, the first concern is whether or not testing was performed prior to replacing the fuel pump in the first place. Did you verify no fuel pressure and delivery present? When this was the case, did you check for power and ground at the pump? If it was present before and is not now, check circuit protection and wiring integrity and connections. If no testing was performed on the electrical part of this prior to the replacement of the pump, perhaps the original pump was actually good in the first place. You may find that there was a power supply concern from circuit protection or even an anti-theft mechanism concern. Testing referencing a shop manual and utilizing diagnostic tools and equipment to find out the source of the concern with the vehicle present hands on is necessary.
Hi, I have the same problem it my pump failed from someone putting sugar in my tank. I checked the old pump and it was no good. All help is greatly greatly appreciated.
IF you’d like to reply here perhaps I can be of more assistance.
I have this exact same problem. It seems to have a problem on the ground side of the fuel pump power. The pump doesn’t turn on at all but if I bypass and apply direct power it does.