Looking for advice from longer term Lexus owners regarding incidental findings upon replacing a battery in my 2007 SC430 with 18000 miles, and in beautiful shape and has no other service issues.
The radiator was found to have a small leak with coolant along the lower seam, and there was the additional timing belt and water pump replacement recommendation, even though the car is low mileage, since the car is 11 years old. Would you tackle all 3 items at once just because the mechanic is in there, or just fix the current but not acute problem, which is the radiator?
This is a new car to me that I bought with the no start engine. Only 42000 miles since last timing belt change . Here's what I found when I opened it up.
Several bolts on water pump housing were loose. Alternator lower bolt was broken. The tensioner pulley was completely broken apart so I don't have any pictures of that . Water pump shaft was bent and water composed inoperative. That's why the coloring on the water pump pulley is shows discoloring from the Heat. Who knows what happened in terms of the sequence....
Anyone ever see this on a Lexus? I've had 10 Lexus before, worked as a mechanic 30 years, and I've never seen this before.
Selling to highest bidder on eBay. I suppose it is appropriate to post here:
It has been a good car. Rebuilt ECU according the LSCowboy and Yamae recommended capacitors. Shifts like a dream.
New transmission mount and timing belt and water pump done this past week 8/20/17.
Leather as seen in pics but I just found an exact car with nicer leather seats also 110K, that I can give you that info if you are interested.
If interested in this car please reach me at 781-449-9990. I and the car are located in Sarasota Florida. Always has been a Florida car.
Ok, so i pulled a dumb and challenged myself to build a car in 1 week, putting a Lexus 1uz onto a w58 into a Mk3 Supra,
but I hit a major roadblock... My engine won't run, it'll crank but nothing more. I've been trying to get my engine to run for the past three days, literally have been working on it for 10 hours each day at least, and have somehow gotten nowhere.
What I have -
-I have the 1UZFE VVTi engine (I believe it came out of a 99-00 Lexus SC400) just the motor, no transmission
-I have the ECU (that I believe is the original stock ECU)
-I have the stock wiring engine wiring loom which came pre-plugged in and all that
My engine again
Wiring loom and ECU
What I've done -
-Connected the EB2 (2) wire which is black with red stripe (I believe is ignition 1) directly to the positive to the battery
-Connected the EB2 (3) wire which is also black with red stripe but physically larger(I believe the starter power wire) directly to the positive on the battery
-Connected the IJ2 (11) wire which is black with orange stripe with silver dots directly to the positive on the battery
-Connected the IJ2 (11) wire which is yellow with black stripe directly to the positive on the battery
-Put in new SAE 5W-30 oil, there is an oil leak but it has enough oil to run
top left EB2(3), middle bottom EB2(2), top right EB1(4)
What I've tried -
-Used starter fluid spray directly in the air intake, did NOT work
-I plugged in a blade fuse in the power and ground wire(i think) of the transmission plug to try to trick it into thinking it was in park because maybe the ECU wouldn't let it run, did NOT work
-Bought and connected a MAF sensor (from a junkyard Toyota) and plugged it right in without an air intake, i was told it would run without one but got one anyways because i also heard it the ECU won't let it run without MAF input, did NOT work
-Looped (plug a wire in power running to ground) O2 sensors near transmission plug, tested with and without, did NOT work
-Cleaned spark plugs for healthy ground
-Tested power to ECU, it was receiving power (12.6 Volts approx)
-Probably a lot more but writing this from my crappy memory now
MAF sensor plugged into MY engine
Transmission plug with blade fuse
Final words -
- I believe the ECU is not sending signals to the spark plugs, therefore there's no combustion, I don't know why
- I have spent hours and hours and hours on lots of forums trying to figure this out myself, obviously couldn't solve the problem
- I may just be missing something important, honestly I don't know now
- I tried to be as descriptive as can be because I know that helps others diagnose the problem
- If you have a question just ask, and I'll answer it to the best of my capabilities or I will honestly tell you I don't know
- PLEASE TEXT OR CALL ME AT 512-720-1166 IF YOU THINK YOU CAN HELP, OR HAVE A SUGGESTION
More engine photos -