1999 ES 300 change knock sensors
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anyone have a DIY or online manual that I can see to double check some things when changing the knock sensors for this car.
its just the manifold so shouldnt take more than 1-2 hours max but if anyone has a picture I can see thatll be great
thanks
its just the manifold so shouldnt take more than 1-2 hours max but if anyone has a picture I can see thatll be great
thanks
#3
Lexus Test Driver
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
REMOVAL
NOTICE: Do not remove or install the camshaft timing gear (VVT-i) beside changing VVT-i or the camshaft.
DRAIN ENGINE COOLANT
REMOVE RH FENDER APRON SEAL
REMOVE GENERATOR DRIVE BELT
REMOVE PS PUMP
REMOVE FRONT EXHAUST PIPE
![](http://library.motoralldata.com/alldata/MTRLIB~C41141~R0~OB0~P3R0H~N/0/70910848/78536611/78536612/110767848/34853741/100411974/34853743/34854590/34849578/82601522/94761668/82014518)
REMOVE V-BANK COVER
Using a 5 mm hexagon wrench, remove the 3 cap nuts.
Loosen the V-bank cover fastener counterclockwise.
Remove the V-bank cover.
REMOVE AIR CLEANER CAP AND CASE ASSEMBLY
REMOVE AIR INTAKE CHAMBER ASSEMBLY
Disconnect the accelerator cable.
Disconnect the throttle position sensor connector.
Disconnect the IAC valve connector.
Disconnect the No.1 VSV connector for the ACIS.
Disconnect the No.2 VSV connector for the ACIS.
Disconnect the VSV connector for the EVAP.
Disconnect the DLC1 from the bracket on the intake air control valve.
Remove the 2 nuts, and disconnect the PS pressure tube from the No.1 engine hanger.
![](http://library.motoralldata.com/alldata/MTRLIB~C41141~R0~OB0~P3R0H~N/0/70910848/78536611/78536612/110767848/34853741/100411974/34853743/34854590/34849578/82601522/94761668/82014519)
Disconnect the PCV hose from the PCV valve on the RH cylinder head.
Disconnect the ground strap and cable from the intake air control valve for the ACIS.
Disconnect the ground cable from the air intake chamber.
![](http://library.motoralldata.com/alldata/MTRLIB~C41141~R0~OB0~P3R0H~N/0/70910848/78536611/78536612/110767848/34853741/100411974/34853743/34854590/34849578/82601522/94761668/82014520)
Disconnect the brake booster vacuum hose from the throttle body.
Disconnect the 2 water bypass hoses from the throttle body.
Disconnect the air assist hose from the throttle body.
Disconnect the purge hose from the pipe on the emission control valve set.
Disconnect the 2 vacuum hoses from the vacuum tank for the ACIS.
Disconnect the engine wire clamp from the emission control valve set.
![](http://library.motoralldata.com/alldata/MTRLIB~C41141~R0~OB0~P3R0H~N/0/70910848/78536611/78536612/110767848/34853741/100411974/34853743/34854590/34849578/82601522/94761668/82014521)
Remove the 2 bolts and No.1 engine hanger.
Remove the 2 bolts and throttle body bracket.
![](http://library.motoralldata.com/alldata/MTRLIB~C41141~R0~OB0~P3R0H~N/0/70910848/78536611/78536612/110767848/34853741/100411974/34853743/34854590/34849578/82601522/94761668/82014522)
Using an 8 mm hexagon wrench, remove the 2 bolts, 2 nuts, the air intake chamber assembly and gasket.
REMOVE INTAKE MANIFOLD ASSEMBLY
![](http://library.motoralldata.com/alldata/MTRLIB~C41141~R0~OB0~P3R0H~N/0/70910848/78536611/78536612/110767848/34853741/100411974/34853743/34854590/34849578/82601522/94761668/82014523)
Disconnect the 6 injector connectors.
Disconnect the fuel inlet hose from the fuel filter. CAUTION: Perform connecting operations of the fuel tube connect-106, (quick type) after observing the precautions.
Disconnect the heater hose from the intake manifold.
![](http://library.motoralldata.com/alldata/MTRLIB~C41141~R0~OB0~P3R0H~N/0/70910848/78536611/78536612/110767848/34853741/100411974/34853743/34854590/34849578/82601522/94761668/82014524)
Remove the 9 bolts, 2 nuts, 2 plate washers, the intake manifold, delivery pipes and injectors assembly. NOTICE:
Be careful not to drop the injectors when removing the delivery pipes.
Pay attention to put any hung load on the injector to and from the side direction.
NOTICE: Do not remove or install the camshaft timing gear (VVT-i) beside changing VVT-i or the camshaft.
DRAIN ENGINE COOLANT
REMOVE RH FENDER APRON SEAL
REMOVE GENERATOR DRIVE BELT
REMOVE PS PUMP
REMOVE FRONT EXHAUST PIPE
REMOVE V-BANK COVER
Using a 5 mm hexagon wrench, remove the 3 cap nuts.
Loosen the V-bank cover fastener counterclockwise.
Remove the V-bank cover.
REMOVE AIR CLEANER CAP AND CASE ASSEMBLY
REMOVE AIR INTAKE CHAMBER ASSEMBLY
Disconnect the accelerator cable.
Disconnect the throttle position sensor connector.
Disconnect the IAC valve connector.
Disconnect the No.1 VSV connector for the ACIS.
Disconnect the No.2 VSV connector for the ACIS.
Disconnect the VSV connector for the EVAP.
Disconnect the DLC1 from the bracket on the intake air control valve.
Remove the 2 nuts, and disconnect the PS pressure tube from the No.1 engine hanger.
Disconnect the PCV hose from the PCV valve on the RH cylinder head.
Disconnect the ground strap and cable from the intake air control valve for the ACIS.
Disconnect the ground cable from the air intake chamber.
Disconnect the brake booster vacuum hose from the throttle body.
Disconnect the 2 water bypass hoses from the throttle body.
Disconnect the air assist hose from the throttle body.
Disconnect the purge hose from the pipe on the emission control valve set.
Disconnect the 2 vacuum hoses from the vacuum tank for the ACIS.
Disconnect the engine wire clamp from the emission control valve set.
Remove the 2 bolts and No.1 engine hanger.
Remove the 2 bolts and throttle body bracket.
Using an 8 mm hexagon wrench, remove the 2 bolts, 2 nuts, the air intake chamber assembly and gasket.
REMOVE INTAKE MANIFOLD ASSEMBLY
Disconnect the 6 injector connectors.
Disconnect the fuel inlet hose from the fuel filter. CAUTION: Perform connecting operations of the fuel tube connect-106, (quick type) after observing the precautions.
Disconnect the heater hose from the intake manifold.
Remove the 9 bolts, 2 nuts, 2 plate washers, the intake manifold, delivery pipes and injectors assembly. NOTICE:
Be careful not to drop the injectors when removing the delivery pipes.
Pay attention to put any hung load on the injector to and from the side direction.
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