Lexus Cars & Trucks - Page 6 - Popular Questions, Answers, Tips & Manuals

The main problem looks like P0306 which is a missfire on #6 cylinder. P0300 means random misfire so you may have another cylinder misfiring. How old are the plugs?
P0031, P0430 and P2238 all are related to the O2 sensors on bank 1. Which is probably caused by the misfiring of the spark plugs.
I would have the spark plugs changed first. Erase all the codes and then see what happens.

Lexus Cars &... | 69 views | 1 helpful votes

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Lexus ES 350... | 35 views | 0 helpful votes

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Unlikely. You need to take the vehicle to a Lexus Dealership or to a good Auto Electician.

One way to try and solve issues like this is to remove one fuse at a time and see if the strangeness stops. This will show the circuit where the problem is. It is also the way to find a parasitic draw if you put an ammeter on the battery. The draw will stop on the ammeter when the offending circuit is found. As Robert says, also remove the relays one by one.

Ticking under the hood is normally items cooling down. You can trace what is ticking by putting a piece of 1/4" plastic pipe in your ear and move it around the engine bay to trace where the noise is coming from.

I drive a 2005 ES330, a purchase from the dealership in 2007. The dealership service it every 8 months.

Lexus Cars &... | 44 views | 1 helpful votes

have you had the injectors checked for spray pattern, have the OBD checked that should let you know what component is causing the problem,

Lexus Cars &... | 30 views | 0 helpful votes

Try disconnecting the ground lead from the battery for 15 seconds and then reconnect and try starting.

Lexus Cars &... | 25 views | 0 helpful votes

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Lexus Cars &... | 40 views | 0 helpful votes

follow top hose back to cylinder head ,if not there then look on bottom hose by the block connection ,Sorry not a dealer fitter only a back street cowboy ,

Lexus Cars &... | 45 views | 0 helpful votes

I don't think it is supposed to go up when using the tailgate lock to avoid hitting you while you are in close proximity to the gate.....Check your owners manual......

Lexus Cars &... | 133 views | 0 helpful votes

Get the OBD read and this will give the code for the faulty sensor/component

Lexus Cars &... | 20 views | 0 helpful votes

Sounds like the wires have come lose on the back of the Cigarette lighter, if that isn't it you may need a new lighter.

Lexus Cars &... | 28 views | 0 helpful votes

Definitely, the tstat is the most common cause of low heat, followed by air in the cooling system and low coolant, and a plugged heater core. You can purchase thermostats in a lot of temperature ranges, but I recommend installing the temp range it came with. Note, the leading cause of air in the cooling system is people installing a tstat then not bleeding all the air from the system.

Lexus Cars &... | 28 views | 1 helpful votes

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