Do you have another key? It can be FOB issue.
My 05 LX470 build thread (2 Viewers)
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Fuel pump will immediately trigger MIL
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- #103
Tried that one.. Same with both the factory and the yoda Md.
Just did sparks, oil, fuel filter. So it’s not that. No codes, electric working. thinking it’s not getting any gas…. Going to get a fuel relay after work and try that. $15 shot.
ICE generally may have only 2 issues:
Nothing to burn (no fuel)
Nothing to start burn (no spark)
Pull out a couple of spark plugs.
If they dry, coffee with a lots of milk color - you do not have fuel.
If they are wet - no spark.
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- #105
Wasn’t the relay.
Could I have botched the shark plug install? I’ll open it up later in the week.
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- #106
I’m thinking fuel pump. It stopped choking now. Just turns and no crank. It must have been using up the last of the fuel there.
Check MIL code if any before you move forward.
When fuel pumps stop it is often due to the pump motor stopping on a bad brush. You can try whacking the tank with a mallet and try to crank it. This can sometimes get the pump started again and get you moving. While it is a very temporary fix, it could help isolate the issue to the pump.
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- #109
Where exactly are you whacking - I’ll try it
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- #110
MIL code is different than the obd2 scan?
Same - MIL is “official” name for check engine bulb.
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- #112
Oh I see. OBD2 has no codes being thrown. Going to try and hit it with a hammer. If it starts I’m going to attempt to drive it home the half mile.
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- #113
Hammer didn’t work. Still not throwing any codes. Abandoning it in a parking lot for now. Where is the most convenient fuel line access up front? I’ll spray some starter in there to see if they gives it a moment of life
Interesting. There are codes for pump electrical, so it should trigger it.
You can try to go under the truck, use stethoscope (or a wood dowel long enough) to listen if the pump starts. You’ll need a help to turn the key into ignition position while you are under a truck. If it starts, you probably have stenosis somewhere in the pipe or in the pump’s intake (guessing…)
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- #115
Come to think of it. I used a different fob this morning that I never use. I tried the one I usually use post issue, and no change. I can always try the valet key but I don’t see that working.
After looking into it, fuel pump doesn’t seem like a terrible job. And may have a positive effect on my fuel economy (should it run)….
What are the other things it could be?
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- #117
I have the caliper ready to put on. It’s my next project for sure+1
Get that taken care of stat. Whoa
Edit, never mind it was an older post, but whoa.
It was wet cause I sprayed it with lube !
Mine did a similar thing last weekend. I switched keys and it started right up.
Both of my keys are aftermarket replacements. Thinking maybe the chip in one of them failed.
Yours tries to start just that little bit though. Mine wasn't doing that.
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- #119
Mine stopped trying to start after it ran out of gas. Tried a second key this morning. Will try the valet key later. Fuel pump likely suspect.
