damon

Got a little sticker shock at the price of these parts! I know that when any of them fail it spells doom for a 1 UZFE. Well okay not doom as in total failure , but it will necessitate replacement & labor = to a Timing Belt replacement.

Can these be cleaned or serviced in any way when you do the TB replacement. Does anyone have any idea of the likely failure rate of these sensors?

Thanks Damon
94 LS ( non California, it has 3 cam sensors)
90919-05002 Crank Sensor
90919-05003 Cam Sensor Left
90919-05004 Cam Sensor Right

PERRYinLA

I think we were just talking about these sensors in this thread:

https://www.clublexus.com/forums/sho...d.php?t=142975

I say that I think we are talking about the same sensors, because there's some confusion as to what they are called- I noticed you call them camshaft sensors, too.

RTIS250

iTrader: (9)

Cam and crank sensors are not common for failure... although i have seen them fail before, just not very often. Cars can go 300+k miles without having a cam or crank sensor failure... ive only seen one fail before 120k miles... honestly, unless you're having a problem, dont worry about it.

damon

Thanks RT CamaroSS. I highly value your opinion.

I think proper Lexus parts lingo is camshaft position sensor & crankshaft position sensor.

PERRYinLA , I think I had seen that post & had me thinking about changing them all out while doing my TB. I'm at 165,500 on my original belt.

Also thought it might be helpful to someone down the road to post some parts #'s.

BTW, Is it just me or is the search function nowhere near as useful as it used to be?

damon
94 LS

PERRYinLA

That is great news that your timing belt has lasted that long, and adds more ammo to my argument that the "change every 60-90K" recommendation on non-interference engines is a waste of money. Let us know what kind of shape it is in when you change it out.

Haha...the search function is the same, but the contents of the forums it searches on is gradually changing, and not for the better. Lotta newbies are skipping the search and starting threads on questions that have already been asked, causing those of us that do use the search to slog through more threads than necessary. Kind of ironic.

Not sure if anything can be done about it anymore- Pandora's box has been opened.

damon

At this moment I have assembled an Emergency Timing Belt kit that I keep in the trunk. My thought is that if I break down on a Hwy. somewhere I can just have AAA tow me to the nearest Toyota or Lexus dealership & fire away. Where you don't see Toyota part #'s there are Dayco #'s. It consist of the following items.


Parts List:

13568-59045 Timing Belt
13540-50030 Tensioner
13503-0f010 Idler Bearing Left
13505-50022 Idler Bearing Right

Front Cover Gasket
11319-50010
11329-50010
11346-50010
11347-50010 2 Total
11357-50010

90311-A0001 Front Crank Seal
90311-38036 Cam seals ( 2 Total )

Cooling:
16100-50022 Water Pump
90916-03084 Thermostat
16325-62010 Water Inlet, Gasket
16571-50021 Upper Radiator Hose
71538 Lower Radiator Hose ( Dayco Part #)

Accessories:
Alternator Parts
90099-10192 Front Alt. Bearing
90099-10194 Rear Alt. Bearing
27370-75060 Brush & Holder


5060885 Serpentine Belt ( Dayco Part # )
89255 Tensioner ( Dayco Part # )
89026 Pulley ( Dayco Part # )

Electrical
19101-50020 Dist. Cap X 2
19102-50020 Rotor X 2

Spark Plugs
BKR6EIX-11

Perry, I still search but no longer find any answers? Options are no longer more than a page long.

damon

hyperopt

FIY:
I changed the timing belt on my LS @ ~150kmi and I must say the belt was quite worn with pronounce lateral cracks developed on both sides of the belt, and the rubber was glazed and glossy unlike the dull-looking rubber in new belts. Needless to say, I was glad I did not postpone changing the belt any longer. Now I can drive across the continent without worries. The wife's LS will get new timing belt @ ~120Kmi.

damon

hyperopt,


To be honest , a large part of me wants to run it to duration just to see the outer limits. The other thing that scares me , is that it runs so well now , I'm scared to intervene. As scary as this is , I think it still has original plugs!!!

Got 338 miles on my last tank of all city driving.

damon

hyperopt

Damon,
I had similar thoughts as well but I also thought that it would not be fair to take a risk and subject my family members to a broken timing belt on a hot desert summer vacation day to test how good and durable Lexus belt is. I left that to Lexus engineers and others to experiment. Meanwhile, I dove under the hood in the comfort of my garage with all the necessary tools to perform the work, which turned out to be more pleasant than I thought.

Wow, that's pretty good gas mileage for an all city driving. I consistently get about 24mi/gal or ~480mi/tank of almost all highway driving, which, by the way, drinks less gas than my former 6-cylinders 3.0L Supra.

saber

Thousands of Toyota / Lexus owners already have found out the hard way what the outer limit of timing belt life is - they have found themselves suddenly stranded in the middle of bridges, deserts, forests, etc at between 150-175,000 miles.

Delaying spark plug & plug wire changes is a highly effective way to shorten the reliability and durability of the engine and it's expensive ignition and emission system control components. You could be looking at some big future repair bills in the 200 - 300K mile range that could have been prevented by changing plugs ahead of schedule instead of the reverse.