Help 2008 Land Cruiser Crankshaft and Camshaft sensors all went out at the same time? (2 Viewers)

[jaimeporrasjr]

Not sure how it’s possible for all sensors to go out at the same time - truck not running. I’m thinking this might be a timing chain or starter issue? Anyone have experience with this issue? How did you resolve the problem? Any recommendations greatly appreciated.

 

[gasman4u]

I’d bed doll-hairs to donuts it’s not all of those things, but a timing issue like you’re thinking. I’m no expert however. Please update when you figure out what the root cause is.

 

[Bugholes]

maybe a critter is chewing on your wiring

 

[TimCFJ40]

what happened up to that time? Just come out in the morning and the CEL was on, or did something unusual happen before shutdown?

 

[aztoytec]

Doesn’t it crank/turn over or just dead?

 

[truthworldwide]

How's your battery voltage?

 

[aztoytec]

Waisted time…..

 

[jaimeporrasjr]

Doesn’t it crank/turn over or just dead?

 

[jaimeporrasjr]

Does not crank.

I will post a video with the sound if I can figure out how to do it. Sorry long time follower, first time posting.

 

[grinchy]

I’d start with a different battery

 

[jaimeporrasjr]

Does not crank.

what happened up to that time? Just come out in the morning and the CEL was on, or did something unusual happen before shutdown?

I had been driving with P2714 codes for months without issues. Then one day when I started her up she didn’t sound the same, like dragging a steel plate over another steel plate. She started four time like this before dying.

 

[jaimeporrasjr]

Doesn’t it crank/turn over or just dead?

Does not crank.

I will try posting a video with the sound it’s making.

 

[jaimeporrasjr]

Update: After more research and more discussions with different people in the industry, I decided to start with the starter - Sequoia/Tundra videos on YouTube came in clutch for the 5.7L. I took the starter to Advanced Auto for testing and despite some grinding noice it did pass - barely according to sales tech. New starter is on order - Toyota Memorial Day sale saved me a pretty penny. I also tested the battery and the voltmeter showed 11.9V - getting it load tested soon. Any thoughts or comments on my approach are appreciated. See link for sound LC was making -->

 

[GrouchyTech]

Well, don’t go throwing a starter at it until you have a known good battery, connections are tight, and your power to the starter is good.

Those sensors did not all fail at the same time. You either have an electrical issue, or the engine has jumped time.

Pull the engine cover and check for rodent damage to the wiring engine wiring harness. Check the whole length of the harness from the sensors to the ECM.

Get under the truck and take a 22mm socket and 1/2” ratchet and turn the engine over 2 revolutions via the crank pulley bolt. Does it turn?