I have owned the car for about three weeks and I have noticed that the fuel gauge will sometimes go to empty or should I say will not go up to the fuel that is in the car... It always stays empty... At E, why? I have tried tightening the fuel cap for multiple times... Can anyone help me? What kind of parts should I replace from Sewell?

 

well, it isnt just a simple, "this is the part you need", cause their could be multiple things that are causing it. I havent particularly heard of this one happening before on the GX470, but it did happen to me in my GMC Sierra. I had to replace the fuel sending unit in the gas tank. I had to drop the fuel tank and everything. It was a PITA.

 

Thanks alot for your info, and yes you are right there can be multiple things, like the one you said, the sending thing in the fuel tank or the fuel voltage regulator behind the cluster. Here is the thing that i am not sure, is the fuel regulator a separate unit or attached to cluster...

 

I'm not quite certain. Have you checked out sewell parts online to see if you can track it down in a diagram?

 

No i actually haven't...so i gotta check if they have diagram for it...so it should be under Electrical...

 

It is either the fuel pump rely which cost $30 or the 894610C010
VAPOR PRESSURE SENSOR ASSEMBLY which is $148...


http://lexus.sewellparts.com/images/...000/845184.jpg

 

I dotn think its the fuel pump relay. I dont believe the truck would start if your fuel pump didnt have power.

 

So there will be a higher chance for the vapor pressure sensory then, that is located inside the fuel tank.

 

That sucks to have this problem. Hope you can fix it soon.