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Hoe to remove belt tensioner assembly on 98 lexus gs300

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Replacing water pump in 98 Lex GS300

Removal of the crankshaft front pulley/damper can be removed without any damage being caused to the cam belt.
They are a good fit on the shaft, I personaly use a lead tup, weighs 2lbs and will not damage anything if used properly.
Tap equaly all the way round the pulley, that should be ok.

Posted on Jan 12, 2009

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SOURCE: Belt Tensioner replacement

A simple bolt on assembly, the tensioner for the serpentine belt may need replacement if it fails to smoothly pivot and maintain tension on the belt.

Using a half inch breaker bar, release tension by rotating against the spring, remove the belt from the tensioner. Unbolt the tensioner (one bolt may be so diffucult to reach that you might want to use a racheting open end wrench by Alden.
Install the new tensioner by reversing these steps.
I usually replace the belt at the same time.

Posted on Jul 02, 2009

  • 1 Answer

SOURCE: 98 lexus gs300 codes p1120 p1121

I wanted to start a thread specifically about failures within the throttle body concerning the GS300 (1998 in my case)

My symptons were:
VSC, VSC OFF, and ENGINE Lights would come on, followed by my car going into Limp Mode, where only that last 25% (if that) of the throttle would respond (basically have to floor the pedal to even move at all).

During the mornings, or when the engine was COLD, the throttle operated normal...then once the car warmed up, usually at about 10 mins, the problem would start...it happened intermitantly at first...1 or 2 days over the course of a week, then it became more consitent, until last week it became a daily problem.

The first part I tried was the Throttle Position sensor, which is on the front side of the throttle body, and the easiest thing to replace...this didnt help at all. $300 part from Lexus, $80 part from RockAuto.com (exacly same part toyota OEM)

THE PART THAT FIXED THE PROBLEM:
===========================================
"Idle Valve Motor", which is the larger electrical object next to the TPS on my 98 GS300. Problem is solved.

The Codes I got were P1120 and P1121 - Accelerator Sensor problem. However it wasnt really the Accelerator Sensor, it was indeed to actual electrical Motor that controls the opening of the Butterfly valve inside the Throttle body.

I found the problem by good old trouble shooting, and using an ohm meter to see if the throttle electric motor was getting elev, I found that the elec motor just to the left of the TPS was basically freaking out and shutting down. The Accelerator Pedal Sensor is on the Back-side of the throttle body where the throttle cable connects to, and has a spring on it. It was fine.

GS300's are indeed "drive by wire" concerning the throttle...the cable triggers the Accel Pedal Sensor, which sends a signal to the ECU, the ECU then sends power to the Idel Valve Elec Motor (next to the TPS), which opens and closes the mechanical butterfly valve, then the TPS sensor detects how far the elec motor is actually opening the butterfly valve...its a closed-loop feed-back system, meaning any failure in any sensor will cause the entire systm to fail.

The throttle cable apparently is ONLY there to allow the fail-safe of having that last 10-25% throttle when the electronic system fails...there is a gearbox inside the throtle body which allows the tail end of the throttle to manually engage the butterfly valve...the rest of the time, the butterfly valve is 100% opened and closed via the idle control motor.

Posted on Jul 08, 2009

  • 1 Answer

SOURCE: '98 grand prix GTP belt tensioner replacement

I didnt have to remove my alternator, I just used a 15 mm wrench to remove the left-hand threaded bolt holding the tensioner on. hope this helps

Posted on Jul 21, 2009

  • 973 Answers

SOURCE: WHAT IS CODE P0715 ON A 2001 LEXUS GS300

P0715 Input/Turbine Speed Sensor Circuit Malfunction

It seems that you may have a problem with your sensor on or in your transmission.

Posted on Jun 03, 2010

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1 Answer

I Need the diagram to remove the tensioner belt that is on the alternator on a 1998 Lexus gs300


just loosen the alternator on its track then pull it so that the belt is loose and remove the belt and replace then tighten again

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94 LEXUS GS300, HOW DO RELEASE THE TENSIONER? (FOR THE SERPENTINE BELT) PUTTING A SOCKET ON THE BOLT HEAD ON THE TENSIONER WITH A BREAKER ARM, DOESN'T MOVE IT. DON'T WANT TO FORCE IT AND BREAK THE...


You shouldn't need to loosen the tensioner itself. To release pressure on the belt tensioner, rotate the belt (or tensioner pulley if the belt is no longer installed) CLOCKWISE. This will release the tension to either remove the old belt or install a new one. Once installed, the belt tensioner will automatically take up the slack.

Sep 19, 2011 | 1994 Lexus GS 300

1 Answer

I am changing the serpentine belt on my 1994 Lexus Gs300 and cannot find the tensioner bolt to apply tension to put the belt back on. Where is it located?


the tensioner is generally spring loaded. check that you have the belt correctly routed. then you may need to attach a socket/rachet to the center bolt of the tensioner to move it enough to slip the belt on. if it moves freely it likely needs to be replaced as well.

Feb 28, 2010 | 1994 Lexus GS 300

4 Answers

I need to know how to replace the Drive Belt/ Serpantine Belt/ Accessory Belt Tensioner. NOT JUST THE PULLEY THE ENTIRE ASSEMBLY. Step by step please. Diagrams would be useful. Thanks


this should be the correct routing for that belt

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the tension looks like this

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replacement is not too difficult. usually the bolt in the center turns opposite to how you normally loosen bolts. to remove the hole tension should be straightforward as you will see the bolts

Dec 07, 2009 | 1998 Lexus Gs 400

1 Answer

Belt Tensioner replacement


A simple bolt on assembly, the tensioner for the serpentine belt may need replacement if it fails to smoothly pivot and maintain tension on the belt.

Using a half inch breaker bar, release tension by rotating against the spring, remove the belt from the tensioner. Unbolt the tensioner (one bolt may be so diffucult to reach that you might want to use a racheting open end wrench by Alden.
Install the new tensioner by reversing these steps.
I usually replace the belt at the same time.

Jul 02, 2009 | 1998 Dodge Caravan

2 Answers

Replacing water pump in 98 Lex GS300


Hi,

I bought this old car and the seller did not provide a manual book with it, I got the luggage compartment not working over a sudden after i bought the car, also the keys are not turning, so i can't open the luggage at all. I tried to look for the fuse box maybe i could find the fuse burnt but i can't find the wright location or the fuse.
I need a diagram for the fuse box if it's inside the car not at the back, and if it's on the back how can i open the lauggage then?

Nass

Jul 04, 2008 | 1998 Lexus Gs 300

2 Answers

Timing belt tensioner


ok sounds simple
get under car with a big socket wrench and i mean big wrench the length of arm bigger the wrench less strain on arm to pulley
cause it might seem stuck but if apply opposite preasure to the tensioner with big socket wrench the tensioner will loose its grip
if u use a small socket wrench its like shooting tiny tiny target with a shirman tank
dont worry yours is not frozen its just the size of your wrench that is giving trouble

May 30, 2008 | 1993 Lexus GS

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