Diesel-like noise in Idle
11-01-16, 12:56 AM
#32
Instructor
https://www.walmart.com/search/?quer...0purple%20fuel
Last edited by superdenso; 11-01-16 at 04:00 AM.
11-01-16, 07:36 AM
#33
Lexus Fanatic
My 2015 has the same diesel sound at idle. Its not an "issue", its the way the engine's direct injection system sounds...nothing to be done about it. My GS350 sounded the same way, also had direct injection.
11-03-16, 08:41 AM
#34
Instructor
...my 460 with 60k has no diesel "click clack"...if you want to upload recordings we can both do it. This way, if the tambres are markedly different maybe it helps others figure out how to proceed.
Last edited by superdenso; 11-03-16 at 09:12 AM.
11-03-16, 05:35 PM
#35
My 2007 HAD this noise
I have been reading this complaint a lot on CL. My 2007 at 85,000 miles had the diesel noise. The DI fuel pump gaskets on the valve covers were leaking as well as the water pump. With my warranty in hand my dealer agreed to replace the gaskets, water pump and some other work. When I received the car back the noise was drastically reduced. I don't notice it when the engine starts from cold or at idle when hot. I am assuming the replacement gaskets, called isolators, do more than stop the leak? Any thoughts?
11-03-16, 06:52 PM
#36
Pole Position
I have been reading this complaint a lot on CL. My 2007 at 85,000 miles had the diesel noise. The DI fuel pump gaskets on the valve covers were leaking as well as the water pump. With my warranty in hand my dealer agreed to replace the gaskets, water pump and some other work. When I received the car back the noise was drastically reduced. I don't notice it when the engine starts from cold or at idle when hot. I am assuming the replacement gaskets, called isolators, do more than stop the leak? Any thoughts?
11-03-16, 07:11 PM
#37
Lexus Fanatic
The fuel pumps are certainly quieter on my 460 than they were on my GS350.
11-20-16, 09:04 AM
#39
Instructor
https://www.walmart.com/search/?quer...0purple%20fuel
02-22-19, 12:09 PM
#40
reviving an old thread, got a 2013 460 SWB RWD with 54k miles - and noticed the "diesel" ticking when I start in cold weather. I recalled seeing something in the service history:
MILES: 5565
SERVICE: SHORT BLOCK
DESCRIPTION: SHORT BLOCK ~|~CUSTOMER STATES THERE IS A KNOCKING NOISE (SAYS IT SOUNDS LIKE THE LIFTERS OR LIKE IT IS NOT GETTING ENOUGH OIL) WHEN FIRST STARTING IN THE MORNING OR WHEN AT A STOP & TAKE OFF ~|~COMPRESSION & FUEL CUT TEST ON ALL CYL-NOISE WENT AWAY WHEN CYL #3 WAS DEACTIVATED POSBLE PSTN CLARNCE R&R #3&7 PSTN RD BRG TO INSP OIL CLERNCE CK PSTN PIN TO CONN RD CLRANCE,PSTN PIN TO PSTN CLRANCE ALL N SPECS CYL WALL & PSTN DIAMETER IN SPECS PER FTS R ~|~5552 OPENED TAS CASE#14120158,REPL ENGINE SHORT BLOCK GASKETS,SEALS PER FTS Z=R&R PISTONS TO INSP CLEARNACE PER TAS BEFORE REQ TO REPL ENG PER FTS PERFORMED FUEL CUT TEST ON ALL CYLINDERS-NOISE WENT AWAY WHEN CYLINDER #3 WAS DEACTIVATED, PERFORMED COMPRES
MILES: 13993
SERVICE: MULTI POINT INSPECTION
DESCRIPTION: MULTI POINT INSPECTION ~|~C/S THERE IS A TAPPING LIKE BEFORE OVERHAUL - STATES THAT CAR SOUND LIKE A OLD PICK UP - VERY LOUD ~|~PISTON CLEARANCE ~|~13993 PISTON CLEARANCE LEXUS STATES THIS IS A NORMAL OCCURRENCE, IT IS INHERENT TO THIS ENGINE DESIGN, AND IS NOT DETRIMENTAL TO THE ENGINE IN ANY WAY. WE WERE ABLE TO DUPLICATE THIS ENGINE SOUND IN TWO OTHER LIKE YEAR AND MODEL VEHICLES.
the car went on the market as L\Certified ~10k after.
am I correct to assume that I'm covered until October 31 2019 seeing how first use for my VIN is October 31 2013 and it currently has 54k miles?
so let's assume that is the case for a minute. What do I take to the dealer other than a cold engine to repro the issue?
MILES: 5565
SERVICE: SHORT BLOCK
DESCRIPTION: SHORT BLOCK ~|~CUSTOMER STATES THERE IS A KNOCKING NOISE (SAYS IT SOUNDS LIKE THE LIFTERS OR LIKE IT IS NOT GETTING ENOUGH OIL) WHEN FIRST STARTING IN THE MORNING OR WHEN AT A STOP & TAKE OFF ~|~COMPRESSION & FUEL CUT TEST ON ALL CYL-NOISE WENT AWAY WHEN CYL #3 WAS DEACTIVATED POSBLE PSTN CLARNCE R&R #3&7 PSTN RD BRG TO INSP OIL CLERNCE CK PSTN PIN TO CONN RD CLRANCE,PSTN PIN TO PSTN CLRANCE ALL N SPECS CYL WALL & PSTN DIAMETER IN SPECS PER FTS R ~|~5552 OPENED TAS CASE#14120158,REPL ENGINE SHORT BLOCK GASKETS,SEALS PER FTS Z=R&R PISTONS TO INSP CLEARNACE PER TAS BEFORE REQ TO REPL ENG PER FTS PERFORMED FUEL CUT TEST ON ALL CYLINDERS-NOISE WENT AWAY WHEN CYLINDER #3 WAS DEACTIVATED, PERFORMED COMPRES
MILES: 13993
SERVICE: MULTI POINT INSPECTION
DESCRIPTION: MULTI POINT INSPECTION ~|~C/S THERE IS A TAPPING LIKE BEFORE OVERHAUL - STATES THAT CAR SOUND LIKE A OLD PICK UP - VERY LOUD ~|~PISTON CLEARANCE ~|~13993 PISTON CLEARANCE LEXUS STATES THIS IS A NORMAL OCCURRENCE, IT IS INHERENT TO THIS ENGINE DESIGN, AND IS NOT DETRIMENTAL TO THE ENGINE IN ANY WAY. WE WERE ABLE TO DUPLICATE THIS ENGINE SOUND IN TWO OTHER LIKE YEAR AND MODEL VEHICLES.
the car went on the market as L\Certified ~10k after.
am I correct to assume that I'm covered until October 31 2019 seeing how first use for my VIN is October 31 2013 and it currently has 54k miles?
so let's assume that is the case for a minute. What do I take to the dealer other than a cold engine to repro the issue?
Last edited by kermitxc; 02-22-19 at 12:13 PM.
02-22-19, 12:57 PM
#41
Pole Position
reviving an old thread, got a 2013 460 SWB RWD with 54k miles - and noticed the "diesel" ticking when I start in cold weather. I recalled seeing something in the service history:
MILES: 5565
SERVICE: SHORT BLOCK
DESCRIPTION: SHORT BLOCK ~|~CUSTOMER STATES THERE IS A KNOCKING NOISE (SAYS IT SOUNDS LIKE THE LIFTERS OR LIKE IT IS NOT GETTING ENOUGH OIL) WHEN FIRST STARTING IN THE MORNING OR WHEN AT A STOP & TAKE OFF ~|~COMPRESSION & FUEL CUT TEST ON ALL CYL-NOISE WENT AWAY WHEN CYL #3 WAS DEACTIVATED POSBLE PSTN CLARNCE R&R #3&7 PSTN RD BRG TO INSP OIL CLERNCE CK PSTN PIN TO CONN RD CLRANCE,PSTN PIN TO PSTN CLRANCE ALL N SPECS CYL WALL & PSTN DIAMETER IN SPECS PER FTS R ~|~5552 OPENED TAS CASE#14120158,REPL ENGINE SHORT BLOCK GASKETS,SEALS PER FTS Z=R&R PISTONS TO INSP CLEARNACE PER TAS BEFORE REQ TO REPL ENG PER FTS PERFORMED FUEL CUT TEST ON ALL CYLINDERS-NOISE WENT AWAY WHEN CYLINDER #3 WAS DEACTIVATED, PERFORMED COMPRES
MILES: 13993
SERVICE: MULTI POINT INSPECTION
DESCRIPTION: MULTI POINT INSPECTION ~|~C/S THERE IS A TAPPING LIKE BEFORE OVERHAUL - STATES THAT CAR SOUND LIKE A OLD PICK UP - VERY LOUD ~|~PISTON CLEARANCE ~|~13993 PISTON CLEARANCE LEXUS STATES THIS IS A NORMAL OCCURRENCE, IT IS INHERENT TO THIS ENGINE DESIGN, AND IS NOT DETRIMENTAL TO THE ENGINE IN ANY WAY. WE WERE ABLE TO DUPLICATE THIS ENGINE SOUND IN TWO OTHER LIKE YEAR AND MODEL VEHICLES.
the car went on the market as L\Certified ~10k after.
am I correct to assume that I'm covered until October 31 2019 seeing how first use for my VIN is October 31 2013 and it currently has 54k miles?
so let's assume that is the case for a minute. What do I take to the dealer other than a cold engine to repro the issue?
MILES: 5565
SERVICE: SHORT BLOCK
DESCRIPTION: SHORT BLOCK ~|~CUSTOMER STATES THERE IS A KNOCKING NOISE (SAYS IT SOUNDS LIKE THE LIFTERS OR LIKE IT IS NOT GETTING ENOUGH OIL) WHEN FIRST STARTING IN THE MORNING OR WHEN AT A STOP & TAKE OFF ~|~COMPRESSION & FUEL CUT TEST ON ALL CYL-NOISE WENT AWAY WHEN CYL #3 WAS DEACTIVATED POSBLE PSTN CLARNCE R&R #3&7 PSTN RD BRG TO INSP OIL CLERNCE CK PSTN PIN TO CONN RD CLRANCE,PSTN PIN TO PSTN CLRANCE ALL N SPECS CYL WALL & PSTN DIAMETER IN SPECS PER FTS R ~|~5552 OPENED TAS CASE#14120158,REPL ENGINE SHORT BLOCK GASKETS,SEALS PER FTS Z=R&R PISTONS TO INSP CLEARNACE PER TAS BEFORE REQ TO REPL ENG PER FTS PERFORMED FUEL CUT TEST ON ALL CYLINDERS-NOISE WENT AWAY WHEN CYLINDER #3 WAS DEACTIVATED, PERFORMED COMPRES
MILES: 13993
SERVICE: MULTI POINT INSPECTION
DESCRIPTION: MULTI POINT INSPECTION ~|~C/S THERE IS A TAPPING LIKE BEFORE OVERHAUL - STATES THAT CAR SOUND LIKE A OLD PICK UP - VERY LOUD ~|~PISTON CLEARANCE ~|~13993 PISTON CLEARANCE LEXUS STATES THIS IS A NORMAL OCCURRENCE, IT IS INHERENT TO THIS ENGINE DESIGN, AND IS NOT DETRIMENTAL TO THE ENGINE IN ANY WAY. WE WERE ABLE TO DUPLICATE THIS ENGINE SOUND IN TWO OTHER LIKE YEAR AND MODEL VEHICLES.
the car went on the market as L\Certified ~10k after.
am I correct to assume that I'm covered until October 31 2019 seeing how first use for my VIN is October 31 2013 and it currently has 54k miles?
so let's assume that is the case for a minute. What do I take to the dealer other than a cold engine to repro the issue?
02-22-19, 01:07 PM
#42
The later models all make this noise to a greater or lesser extent (my 2007 was totally silent, my 2014 is quite annoying). It's the camshaft-driven high pressure fuel pumps (one on each cylinder bank). They are like a valve lifter driven off the camshaft. There are sound insulators around the pumps in the LS (which may or may not be present in the GS) but they don't make much difference. I wrapped mine in Dynomat and fiberglass insulation. Made a little difference but not much. It just went from REALLY annoying to just quite annoying!
02-22-19, 03:01 PM
#43
Pole Position
The later models all make this noise to a greater or lesser extent (my 2007 was totally silent, my 2014 is quite annoying). It's the camshaft-driven high pressure fuel pumps (one on each cylinder bank). They are like a valve lifter driven off the camshaft. There are sound insulators around the pumps in the LS (which may or may not be present in the GS) but they don't make much difference. I wrapped mine in Dynomat and fiberglass insulation. Made a little difference but not much. It just went from REALLY annoying to just quite annoying!
02-24-19, 06:43 AM
#44
Lexus Fanatic
The later models all make this noise to a greater or lesser extent (my 2007 was totally silent, my 2014 is quite annoying). It's the camshaft-driven high pressure fuel pumps (one on each cylinder bank). They are like a valve lifter driven off the camshaft. There are sound insulators around the pumps in the LS (which may or may not be present in the GS) but they don't make much difference. I wrapped mine in Dynomat and fiberglass insulation. Made a little difference but not much. It just went from REALLY annoying to just quite annoying!
02-28-19, 05:01 PM
#45
By "newer models" I meant the 2013+ cars. I've never heard this on an 07 through 12 car. I've heard it in pretty much every 2013+ car to a greater or lesser extent. I'm coming to the conclusion that it's the supplier of the pumps - the earlier cars may have had one supplier that was changed around the time of the facelift. They may have gone back to the original supplier for the 2017 model yesr (because of complaints?)