Lexus LS 2007+ :: While Cleaning MAF Sensor - Disconnecting The Negative Terminal Is Must?


Jan 17, 2015

On my 10 LS460 swb am contemplating cleaning the MAF sensor.

As the battery is in its own corner, I'm not too sure how to disconnect the negative terminal so I want to know, if I clean the MAF sensor and leave the battery connected, will that have adverse affect?

I think pulling and re plugging a specific fuse will also work?

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Nissan - Sentra :: 1994 - Negative Battery Terminal Melted

While reinstalling my battery after working on my 94 sentra my negative battery cable melted my negative terminal.

I installed the positive first then went to do the negative and huge spark/smoke and I see my terminal melted on the one side.

What might be causing this?

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Lexus ES 2007-12 :: Negative Alignment On All Four Wheels?

Wheel alignment for ES350? I have negative camber on all four wheels (picture below has a view what it is).

Also I just made an appointment with mechanic, and he said on the phone that for car like that you can not do alignment with negative camber. He said that likely I have bad bearing or shock, or something else. I hope he is wrong..

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Lexus LS 2007+ :: ABS / AFS And VSC Lights On After Changing Wheel Hub Without Disconnecting Battery

I foolishly changed out my driver side wheel hub (bearing was grinding) without disconnecting the battery and now have the ABS, AFS and VSC lights on. Disconnecting the battery overnight did not work. Going on the premise that the sensor on the new hub is good, does this need the dealer or someone with Techstream to reset?

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Lexus ES 2007-12 :: Replacing / Cleaning Speaker Grills?

Replacing or cleaning speaker grills. Previous owner has alot of marks on mine and was considering replacing the fabric or cleaning them. The marks are scuff marks so I am not sure that the will come off easy.

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Sonata NF (2006-10) :: Removing And Cleaning Mass Air Flow Sensor

2006 Sonata with 3.3L V6. How to remove the MAF sensor on this engine? I see it right between the air cleaner and the throttle body input but can't get the electrical connector off for one thing. I bought some MAF cleaner (don't use carb cleaner) and did this on my other car (a Saab) and I cleaned the throttle body butterfly valve at he same time (with Valvoline carb and Throttle Body cleaner spray). It really needed it. I use a lightly oiled K&N filter on the Sonata and I hear it's even more important to clean the MAF sensor it under these conditions. You just blast it with the spray and reinstall.

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Prius (Gen 1) :: Mass Air Flow Sensor Replacement And Cleaning Throttle Body

Got told by the dealer I need to replace my Mass Air Flow Sensor...to the tune of $657 dollars. And get a throttle body cleaning.

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Golf IV / Jetta IV :: Pump Won't Prime After Cleaning MAF Sensor / Car Cranks But Not Starting

I'm having a situation here. Yesterday I decided to clean the MAF in my 01 VW Jetta 2.0, so without disconnecting the battery I unplugged and took the MAF sensor out and sprayed it using "CRC MAF sensor cleaner", let it dry for about 30 to 40 minutes and then re installed it. When I tried to start the car, I opened the ignition (ON position) and didn't hear the pump priming, still tried to start the car, it when on for about 2 seconds at rough-800rpm idle then rpms dropped and car stopped running. Then, I tried to started it again a couple of times more and I still don't hear the fuel pump priming and the car will crank but not start.

Did I ruin/blew the fuel pump or something in the system? I don't understand what could have possibly gone wrong. I already tried searching for it but did't find the exact same situation and though details might be important.

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Lexus GX 2004-09 :: Negative Impact On Engines When Driven For Long Periods?

I'm trying to think of what gets affected on a vehicle which is driven about 20 to 25k miles a year. I'm looking to purchase one with the following description.

2006, 4.7L V8 is bulletproof, but with 165k miles already, what should I look for when inspecting the vehicle?

It's been dealer serviced. Is there anything other than normal wear and tear items that might be negatively impacted by doing so many road trips (lets say 300 miles at a time) That would be around 550 trips of 300 miles in 6 years.

The reason I ask this rather than just looking at the truck is because I'm in Dallas and the truck is at a Houston dealer... So before I drive out there, I wanted to "assume" what affect this kind of usage would do to an engine.

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Prius (2001-03) :: CEL Back On After Fuel Throttle Cleaning And Oxygen Sensor Replaced

I just posted last week that my check engine light was on and the dealer wanted to replace fuel injectors. But after the fuel throttle was cleaned and oxygen sensor was replaced the check engine light went off. However, yesterday the check engine light came back on. I am talking it back to the dealer, in a couple of days. Where can I go to get to get the error codes read so I have them before I go back to the dealer? Around 128,000 runs fine, around 40 miles per gallon. Last time I had the oil change dealer nothing came up on the 30 point inspection.

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Lexus IS 2014+ :: Phone Keeps On Connecting And Disconnecting?

Phone keep connecting and disconnecting from Bluetooth?Had this happen for the first time earlier today. Went away after shut down and restart of the car.

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Lexus ES 2013+ :: Bluetooth - Phone Keeps Disconnecting / Reconnecting On Its Own

I have a customer who is experiencing some difficulty with his bluetooth. The car is a 2013 ES350 and the phone is a Droid phone with Verizon service.

Customer is claiming that the phone keeps disconnecting and reconnecting from bluetooth on its own, sometimes several times per commute and sometimes to the point where he has to reconnect himself.

Why the connection would be interrupted like this?

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Lexus ES 2007-12 :: ABS Speed Sensor Light Came On

I have 2008 ES350 & my ABS speed sensor light came on a few months ago & i just got around to getting it fixed yesterday.

I took my car to get the code checkout because on my dash the Brake, ABS, & Traction light was on all the same time & stay on. Can't remember the code but it read left rear speed sensor. So i order one off Ebay. I had my mechanic fix it yesterday & for some reason all three lights still on & i drove it for 50 miles now figuring the light would be off by now.

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Lexus ES 2007-12 :: Parking Sensor Alert Low Volume

I've had my '09 ES 350 for a few months now. I am disappointed in the low volume of parking sensor alert. The volume is all the way up and the switch is on. Expecting it to be louder as I am or do I have a faulty "speaker"? I'll be going to the dealer next month for service and will get their opinion at that time.

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Lexus LS 2007+ :: Brakes Sensor Warning - Little Grind Noise

Driving my 2008 460L and I get the brake sensor warning. Ok I've been through this before and know I have a little time left, but two days later I get a little grind noise. Then suddenly metal on metal what the hell is that noise! Turns out the passenger side rear lost a pad... it's just gone. The plate is left but the pad is gone on the inside of the rotor. The outside still had about 25% left. The other back wheel still had about 25% left on both pads.

I have 97k on the car and the rotor was turned on the last brake job so I assume I am done with this rotor and order a new one. Now the fun... I pull off the caliper and compress the cylinder on the offending pad first. The way I do this is with a big pair of channel locks I put one jaw on the pad and one on the back of the caliper and squeeze. It works a treat so I pull the offending pad and the dust boot falls to the ground in pieces. Great... now I put the channel locks on the other pad and when I squeeze, it goes in very easily with almost no resistance and the cylinder on the other side(with no boot on it) shoots out along with a bunch of fluid, probably 4-6 oz.

I decide to reassemble everything knowing I now need to bleed the brakes. All of the other wheels are normal and the brake job goes smoothly.

Frustrating part is here... how do you bleed the brakes in this car?!

methods I tried:Gravity - open the bleeder valve and let it drip, the dripping stopped after 20 minutes leaving no fluid in the line or caliper at all.

vacuum - I used the hand pump tool to try and pull fluid thru, got little spits and dribbles at best.

traditional - had my son pump the brakes, he could get a spongy pedal that bottomed out but never a firm pedal and the cylinder remained empty.

pump and suck - aggressive pumping of the pedal with the suction device on the hardline nipple. This resulted in a little fluid coming thru but no where near the amount you'd expect.

Now I have VSC, Brake Malfunction, ABS warning on the computer.

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Lexus ES 2007-12 :: Vehicle Speed Sensor Location - Code P0500

Where the vehicle speed sensor is located on the 2007 es350. Reomoved battery and air filter box but just can't find it.

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Lexus ES 2007-12 :: Code P0368 - Camshaft Position Sensor Error

2007 Lexus ES350 with 177k miles. Getting a P0368 (Camshaft Position Sensor B Circuit High Bank 1) Error. I can't seem to find online where this sensor is located at.

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Ford F-150 (2004-2008) :: 2007 - Engine Cleaning - Areas Not To Be Wet?

I own an '07 SCrew with the 5.4L V8. The engine is very dusty and I want to clean it. Any best way to do this and any areas that I need to avoid getting wet..

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Lexus LS 2007+ :: Front Parking Assist Sensor Buzzer Louder Than Rear Sensors

I have a 2008 LS. The buzzer for my front parking assist sensors is significantly louder than when the buzzer sounds for the rear sensors. I have adjusted the buzzer volume to the loudest position (#5), but the volume of the buzzer when the rear sensors activate is still much lower than for the front sensors.

The indicators on the nav screen for all the sensors are working properly. Do you find the volume is different between the front and rear sensors or do I have a problem?

I am asking because I inadvertently backed out of a driveway into a car that was parked directly across the street. I do not recall hearing the sensor sound before I hit the other car. At the time, my sensor volume was set on #3. When I checked, I could barely hear the buzzer from the rear sensors, but could clearly hear the buzzer from the front sensors. Resetting the buzzer volume to #5 has worked a bit, but I still wish the buzzer for the rear was louder.

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Lexus ES 2007-12 :: Code P0365 - Camshaft Position Sensor Circuit Malfunction On ES350

I have a 2007 ES350 with 90k miles. Purchased in August. I had ignition coil go out and decided to change them all and the spark plugs. When changing cylinder 5's coil and plug, I tried to push the wiring harness out of the way to remove the coil. Result, I moved the wiring harness too far and disconnected the 3 wires (black, yellow and red) that were connected to the cam position sensor connector. (I should've just removed the sensor SMH) I disassembled the connector, got it down the internal pins, soldered the pins to the wires, placed the pins back in the connector and reassembled it with the wires in the order that they appeared to originally be.

Plugged it back in and put everything back in place. Started the car and code P0352 was cleared but replaced with code P0365 Camshaft Position Sensor B - Bank 1 Circuit Malfunction. I'm thinking, either I put that pins back in the wrong order or one of the wires isn't properly soldered in. Either way, I ordered another connector and it should be here tomorrow. I need Either a wiring diagram or a picture of the camshaft position sensor closest to cylinder 5 connected with the wires in the proper order .

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Lexus LS 2007+ :: Parking Sensor Suddenly Start Beeping Non Stop When LS600H Left On ACC

Any ls600hl owner experienced this? --> When the car is left on acc for a while (all electrics system online without the engine running - or if the car is started with radio only then shut off a few time) the parking sensor suddenly start beeping non stop. If you shut down the car then the steering wheel won't go back into neutral position.

If you try to start the car (along the engine) the car does a kind a "air deflating" sound and won't start (don't seems to be the suspension thought). Then the light on the Mark Levinson radio start flashing intermittently and a warning about the SRS is showing telling you to go to the dealer to have the car inspected.

If you wait a few minutes and start the car again it will then start normally without problems and won't display the SRS warning anymore. This is my second 2008 ls600h with the executive trim and both did this so this seems to be some kind of design flawn.

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