Bradbb

Where is that valve located?

I don't see a replacement part available at rock auto. If it's factory only, what is it called?

lexus114

try Sewell Lexus on here.

arnieosp

iTrader: (1)

It is called "fuel pressure regulator" and it is inside the fuel tank. You can get to it through the floor, withou removing the tank. Attached is a testing procedure.

And here is another picture: http://www.trademotion.com/partlocat...layCatalogid=0

jones1950

Boy, was this problem much ado about nothing. Looks like the head Lexus mechanic was wrong (he said battery was fine). I got the battery changed (at Advance Auto Parts - the Autocraft Gold 24F 700CCA) and my puppy is starting up nice now.

Seems like sometimes even the experts are wrong at the simplest things.

arnieosp

iTrader: (1)

Well, they keep saying they are IN PURSUIT of perfection. That doesn't mean the perfection has been captured.

kitlz

jones, hate to tell you, the battery was under warranty.

lexus114

that sucks.

jones1950

ack!! Are you serious? Maybe that is why they didn't find anything wrong with it!

Oh well, not too expensive of a mistake. I was over halfway through (84 month warranty?) so I'm probably out $50 at most.

kitlz

Sorry to be the bearer of bad news. But as long as the car is starting fine, that's all that really matters.

Bradbb

I'm really doubting that mine is a battery, but to be scientific, I must test before I can actually rule it out. I have a spare brand new Optima red top. I'm thinking if Just put that in parallel via jumper cables and it starts properly, it should tell me if that is the problem or not?

jones1950

That should work as long as your spare battery hasn't just been sitting around for months/years. A simple voltage reading will not be sufficient to determine life of battery, you have to do an amp test. Some shops will do this for free for you and is quite simple/quick.

kitlz

One easy way to tell if it is the battery, the auto close function does not work on the windows and sunroof. After replacement, they usually have to be reprogrammed. The instructions are in here somewhere.

Rainbird

To accurately test a battery it must be done under load. Most auto supply stores or dealerships have equipment to do this.