I got this 2008 lexus es350,when it's cold, it makes a noise like a lifter or valve is discharge????and how much will it take to fix it..............

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Fuel filter replacement??

ClubLexus https://www.clublexus.com > forums > 316460-fuel-fil...
Nov 4, 2007 - Fuel filter is located just behind the driver's door (underneath) and has one fuel line going in, and one fuel line going out. You disconnect ...

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Probably a blown fuse, this is how to replace it.
Interior Fuse Box Location 2007 2012 Lexus ES350 2008 Lexus ES350 3 5L V6

here is the fuse location
2007 Lexus ES 350 Owners Manual Page 325

Edward, fuse box above drivers feet under dash.
you may want to check out attached links for fog light problems.
07 Es350 Fog light relay Club Lexus Forums

Lexus ES 350 fog lights fuse location Google Search

Replace Fuse 2007 2012 Lexus ES350 2008 Lexus ES350 3 5L V6

Fog Lights Not Working

You would need to erase the trouble codes with a scanner or code reader to make the light go off. Then if the problem is fixed and no codes are set, the light should stay off.

You must ensure that you place the correct measurement belt
Check belt tensioner
I think the water pump failure does not match the noise

Idler bearings are very common, they can also reduce the timing advance, reduce power in the engine

Lifter noise(s) can be a combination of things........ 1. High mileage on engine. 2. Not using the correct oil. 3. Lots of sludge build up in motor due to lack of oil changes and the quality of oil that you are using. Hydraulic lifters rarely fail but it does happen, given the conditions on how the car was maintained. I can offer you a solution but no guarantees on what might quiet this lifter down. It's a 50/50 chance. On your next oil change, I would recommend taking your vehicle to a facility that sells BG products. It's a company that formulates chemicals that have great cleaning properties to your fuel system and oil lubricating systems in your engine and at the same time, it is safe on all rubber seals in your engine. (Especially Higher Milage Vehicles) Ask for BG MOA to be added in you next oil change or if you do your own oil changes, you can find this product on line and can purchase from there. What the BG MOA does, it helps break up sludge and build up on the inside of your engine and helps to free up your valves, piston rings and noisy lifter(s). Hydraulic lifter(s) tend to make noise when they can't sufficiently pump up with oil due to sludge and build up blocking the oil inlet passage. Worn lifters on cold start up may be very noticeable but eventually the ticking goes away after engine warms up and the hydraulic lifter(s) had time to pump up. Make sure that you don't have a exhaust manifold leaking as well due to a crack or a failing exhaust manifold gasket. This can also emit a ticking noise in which can be misdiagnosed for a ticking lifter. A leaking exhaust manifold can usually be identified by the ticking noise getting louder and faster when accelerating and quieter and slower when decelerating. Ticking noise is loud on cold start ups but not noticeable at all when engine is at operating temperature. Hope this will help you out.

You will need the dealer to look at his, diagnosis of this problem takes special equipment and skills.

Check you owners manual it is in there.

If you have a auto zone or advanced auto part store near by they will do this for free