LS460(L) Start-up Problem...Please Help
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LS460(L) Start-up Problem...Please Help
Hello All,
My LS460 L (2008) is having startup problems. I press the startup button but doesn't always start and sometimes it takes three attempts to get started. I took it to the dealer in Saudi (ALJ) and they changed the battery and did a full check but couldn't figure the problem. The problem is intermittent.
Please see this video that I took to give you an idea and hopefully give me some pointers: http://db.tt/o3a1wHF3
Thanks in advance for your help.
My LS460 L (2008) is having startup problems. I press the startup button but doesn't always start and sometimes it takes three attempts to get started. I took it to the dealer in Saudi (ALJ) and they changed the battery and did a full check but couldn't figure the problem. The problem is intermittent.
Please see this video that I took to give you an idea and hopefully give me some pointers: http://db.tt/o3a1wHF3
Thanks in advance for your help.
#2
A couple of things come to mind.
One would be dirty fuel injectors. There are additives that you can put in the fuel to help with that or you could replace the fuel injectors.
The other thing that comes to mind is this TSB: http://www.lambros.net/LexusTechInfo...SB-0161-08.pdf
One would be dirty fuel injectors. There are additives that you can put in the fuel to help with that or you could replace the fuel injectors.
The other thing that comes to mind is this TSB: http://www.lambros.net/LexusTechInfo...SB-0161-08.pdf
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Many Thanks for posting the link to the TSB . I didn’t have this problem when I bought the car back in 2008 and it only surfaced beginning of last year 2011. I will print the TSB and take it to the dealer. My car has only 56,000KM (31000 Miles) on it and it was always serviced at the dealer.
The fuel injectors have already been cleaned and the battery changed twice (end of June 2012 and on the first week of August 2012). I left on vacation and the car was in my garage for 30 days and when I returned the battery was totally drained. It didn’t make any sense that a new battery that has been just installed in June 2012 drains that quickly. I took it again to the dealer and the battery was changed again (warranty) on the first week of August 2012. The dealer maintenance engineer tells me that they have checked the car for any electrical issues but couldn’t find any.
I am totally puzzled and hopefully the TSB helps.
The fuel injectors have already been cleaned and the battery changed twice (end of June 2012 and on the first week of August 2012). I left on vacation and the car was in my garage for 30 days and when I returned the battery was totally drained. It didn’t make any sense that a new battery that has been just installed in June 2012 drains that quickly. I took it again to the dealer and the battery was changed again (warranty) on the first week of August 2012. The dealer maintenance engineer tells me that they have checked the car for any electrical issues but couldn’t find any.
I am totally puzzled and hopefully the TSB helps.
#5
Many Thanks for posting the link to the TSB . I didn’t have this problem when I bought the car back in 2008 and it only surfaced beginning of last year 2011. I will print the TSB and take it to the dealer. My car has only 56,000KM (31000 Miles) on it and it was always serviced at the dealer.
The fuel injectors have already been cleaned and the battery changed twice (end of June 2012 and on the first week of August 2012). I left on vacation and the car was in my garage for 30 days and when I returned the battery was totally drained. It didn’t make any sense that a new battery that has been just installed in June 2012 drains that quickly. I took it again to the dealer and the battery was changed again (warranty) on the first week of August 2012. The dealer maintenance engineer tells me that they have checked the car for any electrical issues but couldn’t find any.
I am totally puzzled and hopefully the TSB helps.
The fuel injectors have already been cleaned and the battery changed twice (end of June 2012 and on the first week of August 2012). I left on vacation and the car was in my garage for 30 days and when I returned the battery was totally drained. It didn’t make any sense that a new battery that has been just installed in June 2012 drains that quickly. I took it again to the dealer and the battery was changed again (warranty) on the first week of August 2012. The dealer maintenance engineer tells me that they have checked the car for any electrical issues but couldn’t find any.
I am totally puzzled and hopefully the TSB helps.
Leaving your car for 30 days or 60 days or 90 days should be no problem if the battery is in good shape and charged. Batteries do die of old age and an old battery may die in that period whether it is parked for a long time or not.
The LS460s are well designed as far as leaving the interior lights on or leaving a door open that keeps the interior lights on - the interior lights will go off automatically. If the Accessory power is left on, it turns off automatically too.
But, there are two conditions that can fully discharge the battery. One would be leaving the Ignition On with the engine not running. For this condition you get an audible warning (a series of short beeps) as you leave the car if you have the remote key that was used to start the car with you. If you press the lock button in the outside door handle you will get an audible warning (long beep) whether you have the remote key or not.
The other thing that can discharge the battery is the failure of the exterior lights AutoOff to complete because the car has an indication that one of the doors or trunk is not closed. This is only a problem if the exterior lights (parking lights, driving lights or headlights) are on. If you press the lock button in the outside door handle you will get an audible warning (long beep) if the car has an indication that one of the doors or trunk is not closed. But, there may be an exception to this depending on how your car is set up.
You should test your car to make sure you are going to get the audible warning for the open door/trunk. You can do it like this: with the ignition off, open a rear door and leave it open and then press the lock button on one of the closed doors - you should hear an audible indication (long beep). If you don't hear that audible warning, or if it is faint, then you will need to adjust the warning volume under the dash.
I don't have a clean picture but you can see the Volume control in this picture - it's the **** directly under the word "Accelerator."
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Thanks Jeff for the elaborate explanation. I did test the car today and it beeps. Yesterday, I had three occasions where I had to push the start button four times to get the car started.
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Hello Jeff... My car is at the dealer maintenance shop now and I gave them the TSB and they told me that the TSB only applies for the US Lexus cars. They think that it is a fuel injectors issue and they are going to change them. My car has only 55,000 KM on it. The dealer also suspects something wrong with the fuel pump. Total cost of fuel injector plus pump is around $2100.
There is only one dealer here for Lexus and so cannot take the car to another place.
What do you think about changing the fuel injectors ?
There is only one dealer here for Lexus and so cannot take the car to another place.
What do you think about changing the fuel injectors ?
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#8
Sorry, I don't have any expertise as regards the injectors. We seem to have lots of Certified Technicians in this discussion and perhaps one of them will share their wisdom with you.
As for the applicability of the TSB, I would compare your car's VIN to those listed to see if that provides any insight.
As for the applicability of the TSB, I would compare your car's VIN to those listed to see if that provides any insight.
#9
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Unless your car's in service date is Sep 5, 2008 or later.. then you are out of 4yr/50k mile warranty coverage. They may still help you but for a major repair like that..if it is the injectors, you may be SOL..hopefully you have ext warranty coverage
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Thanks Jeff.... I will check the VIN.
Cjitty, What does SOL stand for?
In Saudi, the warranty is 3 years only or 100,000 KM. I paid for for extra two year warranty but it only covers major breakdowns such as gear issues, etc and doesn't include injectors.
Cjitty, What does SOL stand for?
In Saudi, the warranty is 3 years only or 100,000 KM. I paid for for extra two year warranty but it only covers major breakdowns such as gear issues, etc and doesn't include injectors.
#12
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I left on vacation and the car was in my garage for 30 days and when I returned the battery was totally drained. It didn’t make any sense that a new battery that has been just installed in June 2012 drains that quickly. I took it again to the dealer and the battery was changed again (warranty) on the first week of August 2012. The dealer maintenance engineer tells me that they have checked the car for any electrical issues but couldn’t find any.
I am totally puzzled and hopefully the TSB helps.
I am totally puzzled and hopefully the TSB helps.
You just have to disconnect the negative and check with an ammeter. Its been nearly 18 years and I don't recall the numbers for the LS but I thought it was 30 ma or 90 ma? Again.. not sure of the number. The dealer would know what the stand by current draw is.
If you have a high current draw - such as in hundreds of milli amps, you have a problem - which can probably be traced only by the dealer. Do you have any after market electrical accessories installed? If you did - that would be the first suspect.
#13
Unless the car is showing symptoms while in drive mode, I highly doubt it's the fuel pump.
If the problem is only in starting the engine, I'd start with the battery and switch. Measure the battery's voltage prior to starting the engine. If the reading is low, then the car is leaking electricity somewhere. If the battery's voltage reading is normal, check the switch.
I can't think of any other reason.
If the problem is only in starting the engine, I'd start with the battery and switch. Measure the battery's voltage prior to starting the engine. If the reading is low, then the car is leaking electricity somewhere. If the battery's voltage reading is normal, check the switch.
I can't think of any other reason.
#14
Unless the car is showing symptoms while in drive mode, I highly doubt it's the fuel pump.
If the problem is only in starting the engine, I'd start with the battery and switch. Measure the battery's voltage prior to starting the engine. If the reading is low, then the car is leaking electricity somewhere. If the battery's voltage reading is normal, check the switch.
I can't think of any other reason.
If the problem is only in starting the engine, I'd start with the battery and switch. Measure the battery's voltage prior to starting the engine. If the reading is low, then the car is leaking electricity somewhere. If the battery's voltage reading is normal, check the switch.
I can't think of any other reason.
If the engine failed crank only after sitting for a while this could be the cause. Putting a pressure gauge between the pump and injectors isolated my problem.
JR
#15
Lexus Test Driver
bad fuel pump can be the problem especially if it is not holding pressure so when you let it sit for a while the pressure would get lower and lower until it would take at least 3 to 4 times to crank because the fuel pump had to build pressure up.