Member Help thread from a Lexus Certified Technician
#1021
Got this figured out but I'd still like an answer if ya don't mind.
Hey TACH, thanks for the help in the past. I have a question about timing on someone else's 96 LS400. (not on my 93) It's another member but I'm not familiar with the interference motor. Before the T-belt was taken off all three timing marks were lined up. (crank and both cams) Turned it another 50* after TDC. Pulled the belt off, worked on couple other things and the L cam pulley (drivers side) accidentally got turned a little bit, maybe another 10* clockwise. The crank and R cam are still where they were before the belt came off, 50* ATDC.
Question is; should he spin the L cam counter clockwise back to where the timing mark is supposed to be? Or should it be turned clockwise to get to the timing mark? B/c it already spun 10*, if he goes clockwise it will go another 350* to make one full turn, (360*) on the L cam only. Would that cause damage? Remember, the crank is still at 50*ATDC. He doesn't want to hurt anything with it being an interference motor. Now, he tried going counter clockwise and says there is resistence, I don't know how much resistence like if it's solid or like the spring is compressing. He's getting different answers so I figured I would help him out more and ask an actual Lexus tech. I appreciate whatever answer, thanks.
Hey TACH, thanks for the help in the past. I have a question about timing on someone else's 96 LS400. (not on my 93) It's another member but I'm not familiar with the interference motor. Before the T-belt was taken off all three timing marks were lined up. (crank and both cams) Turned it another 50* after TDC. Pulled the belt off, worked on couple other things and the L cam pulley (drivers side) accidentally got turned a little bit, maybe another 10* clockwise. The crank and R cam are still where they were before the belt came off, 50* ATDC.
Question is; should he spin the L cam counter clockwise back to where the timing mark is supposed to be? Or should it be turned clockwise to get to the timing mark? B/c it already spun 10*, if he goes clockwise it will go another 350* to make one full turn, (360*) on the L cam only. Would that cause damage? Remember, the crank is still at 50*ATDC. He doesn't want to hurt anything with it being an interference motor. Now, he tried going counter clockwise and says there is resistence, I don't know how much resistence like if it's solid or like the spring is compressing. He's getting different answers so I figured I would help him out more and ask an actual Lexus tech. I appreciate whatever answer, thanks.
You probably already taken care of this, If you set the motor to TDC and the cams move after the belt is off you can just reset it to the timing marks and you will be ok.
#1022
Air/fuel sensors and o2 sensors
I have a 02 ES300. Can somebody please tell me starting from the manifold and going down which are which as far as the sensors goes? There is one in the manifold, two below that next to each other and another one buy the fire wall and the another. Trying to find bank 2 sensor 1. Thought it was the one in the manifold but guess I'm wrong. I have a new Bosch one part number 13737 and don't have a clue where it goes. Now I have to buy another one for the manifold and don't know what to get.
#1023
'99 LS400, 55,000 miles. When I insert the key (master key? black plastic fob with three buttons - trunk button not functioning, by the way) The security light flashes and the car won't recognize the key...for over a minute sometimes. I can turn the starter, but it won't fire up. But after a time, I hear an audible click, the check light engine comes on, the security light quits flashing, the tach needle jumps to life, and the "P" lights up. Then it starts, every time.
Also, I have a copied key, from Ace Hardware, that will open the door, and will eventually cause the security light to stop flashing, but usually doesn't start the car.
Any thoughts?
Also, I have a copied key, from Ace Hardware, that will open the door, and will eventually cause the security light to stop flashing, but usually doesn't start the car.
Any thoughts?
#1024
my IS200 wont start there is spark on the plugs,the throttle body is fine the timing is fine we tried to check the fault codes. the machine picks up no fault codes.the engine turns well when cranking ,it it sounds like it will start but never picks up.it is automatic 1999 model.also the immobiliser does go off when starting.Where else can we check for faults
#1025
#1026
If you are having some fuel leak from the damper go ahead and replace that. Make sure you get new o-rings for the damper.
#1027
Ok, Take out the VVT-I solenoid and take out the filter check and see if it is clogged. If not power up VVT solenoid but adding power and ground to see if it is actuating if not purchase a new unit.
#1029
Change out your plugs, plug wires, dist cap and rotors, EGR may be getting stuck, You will just have to purchase a new unit.
#1030
1998 gs400 125k. A/c issue: When the a/c works, it's cold as ice. Sometimes it works, sometimes it doesn't. Sometimes turning the temperature to 65 will kick it back on, sometimes it wont. It'll blow cold, then all of a sudden it will blow hot. Compressor SEEMS to be cycling during both temperatures. I had it evacuated and recharged, and all of it was there.. so no leaks. I havent had gauges on it tho, since.. is the compressor common? I was hoping ambient switch? Sunload sensor? Help!
#1031
#1032
I parked my car and the next time I got into it, it wouldn't start. All the lights came on when I turned the key but there isn't any noise from the starter. Might there be any fuses or relays that might have blown. The battery is good and charged. Any suggestions? it's a 1994 LS 400
#1033
#1034
Hi I have a 1999 GS300 with just over 140,000 miles on it. I recently had the brake booster assembly replaced. Before it was replaced there would be an awful squealing noise which would end in a high pitched buzzer sounding and these four lights turning on on the dashboard: VSC, ABS, VSC OFF, and the red BRAKE light. Replacing the booster assembly did the trick. However, a few days after the replacement, the VSC, ABS, and VSC OFF lights came back on but with no noise and no red BRAKE light. Could it be something with one of the brake sensors? If so, how much do they usually cost per sensor? The second issue is a noise coming from the engine. It happens when the engine is between 1,000 and 1,100 RPM. The noise is a rattling, metallicy sound. Could it be that some piece of metal near the engine is loose and the frequency from that RPM range makes it rattle? Thanks in advance for your help!
#1035
[QUOTE=loccsta187;6594897]2006 lexus gs430 getting CHECK VSC / trac off / check engine light / and the yellow exclamation next to it
i ran the code and i'm getting P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
i thought it might have been the gas cap because it came off with no effort at all, replaced the gas cap and the light is back on
HELP!![/QUOTE
Take it to the dealer and they will replace it. The cat is not working properly. Also I would replace bank 1 sensor 1 & 2 while your at it.
Dealer may have you replace the sensors first before they warranty the cat so you will have to pay for that and if it comes back on they will do the cat under warranty and use the new sensors on that.
i ran the code and i'm getting P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
i thought it might have been the gas cap because it came off with no effort at all, replaced the gas cap and the light is back on
HELP!![/QUOTE
Take it to the dealer and they will replace it. The cat is not working properly. Also I would replace bank 1 sensor 1 & 2 while your at it.
Dealer may have you replace the sensors first before they warranty the cat so you will have to pay for that and if it comes back on they will do the cat under warranty and use the new sensors on that.