Adam91

It just cranks has spark and fuel and new battery and timing is only 50k old good starter relay
I'm thinking it's a crank sensor
Link below please help

MattyG

Have you in fact confirmed that it has spark/fuel? You need to hook up an obdii reader to find out what the issue is.

Adam91

I did the battery died and reset the car

Mcon

iTrader: (1)

Do you check your MAS Sensor?

AdamP

The GS I just bought is doing the same thing, if you figure it out please follow up.

Adam91

I put a code reader one I guess when the car died it erased all the codes

isfdude

iTrader: (11)

Check your timing belt befor you keep cranking it. You don't want to damage your engine. Make sure all parts are within timing marks.

Adam91

The timing belt water pump tensioner everything was changed 50k ago at the Lexus dealer

MattyG

What's the history of this car? How long have you had it? Did it do this before/after the Lexus dealer service? You'll have to provide some more context. Modifications? Have you altered something on the car? New parts? No reason for a car with good ignition/timing/fuel to not start. Have you looked at the possibility of the crank sensor?

isfdude

iTrader: (11)

Trust me, just because they changed it doesn't mean it was done right. There are rollers and a tensioner under the cover that they maybe didn't change. It's worth a shot to check it out. These days 50k it what parts last for.

Adam91

I've had it one year the previous owner had maintenance done at the dealership
no mods except for blast pipes and Cai
No problems except the starter went out I replaced it
There was a self cranking issue disconnected the battery for like 2 days and it started doing this
I looked in to the Crank sensor I ruled it out because it's getting spark
There was a check engine for o2 sensor and that's it
The codes reset because the battery is out of the car

I did have a slight dripping from the windshield seal on the driver's side but it did get to anything only leak so it's not water damage

True on parts failing but I've never heard of a timing belt going out in 50k miles

isfdude

iTrader: (11)

Some dealers use cheap parts. Or didn't change them all out. The tensioner could have fallen weak and the timing could have jumped as well. If you said it would crank by it self then the car has an automatic start alarm somewhere in it installed. Check to see if you find any add ons under the steering wheel area under the panel.

Adam91

Nothing extra anything where in the car and there's no way the timing belt will be good one day and the next it's bad
I'm thinking electrical like ecu or something
Maybe water got in somewhere

msarahalex

iTrader: (5)

How old is the battery, coz my car was doing the same thing 3 days ago. Would crank but wouldn't turn on, tried to gas it when it almost started but nothing. Then the other day it started took it to autozone, asked them to check my batterie and the alternater. Turns out I had a bad battery , bought a new one and the car is starting up right away.

lostape45

He said it cranks but doesn't turn over, so it can't be the battery