914lps

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Everything posted by 914lps

  1. Hi, been a long times since I have needed help. But me and my 1991 Lexus LS400 are back. Had an issue with my starter going out on me. The mechanic I used for 15 years past away so I needed to find a new one. Found a guy who came to me. Started the job and then disappeared never to come back or return a call. He got the new starter in, but that is were he stopped. Found a new guy. Really good. He finished the job along with putting in all new ignition parts due to other guy messing up wires and distributors caps. The car is about 20 thousand miles away from needing that. So I put in all new stuff. Also put in new thermostat, new battery. Mechanic also cleaned intake and fuel injectors. On working on car he discovered an issue with the wiring harness. About 2012 or 2014 I had the front passenger tire blowout. A part of the tire went through to the engine compartment and took out part of the main wiring harness by the firewall. It was fixed by insurance and had been fine. Until now. A wire or two shorted in the repaired are. Making it so the car would not start with the key. If you by past it though the fuse box, car started etc. So he pulled the wires that had shorted (they even melted) and repaired with new. He then took car for a long drive. Even up a very nasty locale car killing step grade. All was OK. He also charged the battery before doing so and tested cooling system along with that the car was charging. He drove the car to me. I drove him back to his place. On the way home my issues started. The car stalled after I stopped at a store and started it to leave. On trying to restart car was completely dead. No clicking. No sound from starter. I sat for about 5 to 10 minutes. And don't know why but tried it again. Car started right up. Starter sounded great and cranked fast. On getting home and keeping the car running the headlights stopped working. They were switched on. The dash acted like they were on. But no headlights. I turned them on and off a few times and they would not come on. But the dash lights started going nuts. Sometimes some of the indicator needles on the mph or rpm or temp or gas, etc., went out. Not all at the same time. Just different ones when I flipped the lights on and of. Turned the car off. It would not restart. Turning the key I got nothing. No click. Nothing. Checked the battery with a smart charger. It was at 11.5 volts. Gave up for the day. Left the smart charger on all night. Car started perfectly in the morning. Headlights worked fine. Dash lights worked fine. Turned car on and off a few times. All good. Restarted car to take a charging reading. Got nothing engine running. No charge from alternator. Voltage had come down to 11.5 volts. I need help. Need to pick your brains. I know it could be the alternator. I know it could be the cpu that controllers the alternator. But I never had a dash go nuts like that before..... I've had low batteries before. Needed jumps before and so on. But never the dash going nuts and no headlights when switched on. Not even dimly lit. So could it be an issue with other wires in that part if the wiring harness? I know if it is the harness it could hurt the alternator and the charging cpu. Help please. I don't want to just throw (expensive) parts in and see what happens. Sorry for the long post. But I know sometimes every detail and so on helps. Now you know as much as I do. Anyone ever have their dash go nuts? As always a great big thanks to all! I edited this to fix typos etc. Also important forgot to mention. I'm in a rual area of Arizona. Where California, Arizona, and Nevada come together by the Colorado River. Las Vegas is the bigist nearby city at a little over 100 miles away. Again, thanks to all.
  2. RESPONCE Thank you for responding. I know it is tempting to skip parts on a long post and just respond. But this post is long becouse I wanted to give out all the needed information. Like the part about a new battery already being put in the car. And yes, we did test it more then once. The posability of a bad connection is one of the items we will be running down. The connections that are a easy reach at the battery have been checked with a meter for resistance. Realy need to hear from anyone that has info on what could make the headlights/dash do what it did and how you fixed it. Thank you.
  3. Ok folks, here's one I have a 1991 Lexus 400. And I have a problem with the heater. When I try to heat the cabin with the a/c either in auto or manual mode, and even if I keep pushing the temperature up to the maximum temperature I basically get no heat in my car. It does not mater where I have the air set to come out of. For example defrost setting blowing towards the windows. The heater setting blowd it down towards the floor. Also doesn't matter if the AC is on or not, for example in the defrost mode. The reason I say I get almost no heat is I have noticed that if I keep my driving speed up over 65 miles an hour I will get heat. But not as intense as I used to. Now driving at 65 miles an hour, I Drive in the normal mode With overdrive on should my rpms are probably a little over 2,500 or somewhere in there. Could be as high as 3000 but I haven't really made note of it. Also if it matters when I push the control to raise temperatures up or down it does respond with the beep beep beep. I have checked the heater valve in the engine compartment. When the heat is off the valve is in the closed position. When I turn the heater on the valve moves to the open position. So I'm sure the valve is opening. So what am I looking for? Information on what it could be and how to go about checking it. I don't know if it's an issue with my climate control unit. Or the heater volve... or what... Nor how to check anything else As always I thank all of you guys for your kind help!
  4. 914lps

    What is wrong with my heater???

    I took more time trying to find just where the leak is. I saw that the hose from the tank goes to a pipe. But the tube and pipe move easily. Any one have info on where that Line hoes to. I looked for a diagram on google but found nothing.
  5. 914lps

    What is wrong with my heater???

    Will you folks look to be right. I will keep you posted. I checked fluids. Collent tank bone dry. Shame on me! I know better and I seemed to have forgotten to check now and then. As low sensor is not working. Added fluid and it was sucked dry. So added more. Will check in morning with cooled car. Put I think I found small leakage where house from tank attaches to engine. Will clean off and see. Thank for dee help!
  6. I am having a major issue with A/C electric cooling fans under the hood (A/C Condenser Fan Assembly). The twin electric fans that come on to help cool the A/C condenser are not working. This issue came up when fixing a leak in the A/C system. On putting the fans back in place it was discovered that a bird was badly mangled in the fan on the right or passenger side. Due to this bird jamming that fan, the motor is dead. When given direct voltage the other fan (drivers or left side works). To try to get my car on the road as we look for a replacement fan, we moved the drivers side fan to the right passenger side. As this is more inline to cool the condenser coils. But when we turn the A/C on, the fan is not coming on. Does anyone know how to test this to find out if it is a bad connection, or is the brain that controls the fans messed up?? Do both fans have to be connected for the system to turn them on? Or can you cheat with only one fan for a short time? A wiring diagram would be great. As we may have a grounding issue. Also anyone know where to get a replacement fan or motor without going though Lexus?
  7. My 91 LS 400 heater is not working right. It is only putting out warm air when sent on maximum. I have played around with the settings etc... To see if I could figure out why. Now I am in Arizona and only dealing with outside temps no lower then in the high 40's. As I move the temp setting up and down the system seems to work. The vent and fan settings change as I change the temp setting with things set on auto. The only way I can get some warm air coming out is to go into manual mode. Set to recirculate air. And a/c off. Vent and fan speed seem to make no difference. Any ideas on things to check, etc???? The cars temperature gauge is where it always is after the car warms up. Dead center of the range. Car engine heats up fine. Car runs fine. No indication of a cooling loss/leak. Normally this car puts out really hot air when set on high... So something is not working right. As always thanks to all.
  8. Can you give me more information on this?
  9. Coolent level looks to be good at reservoir. Turned temperature up and down valve moves full range. I will use infered thermometer to check temperature diferance between upper and lower hose connected to valve when open.
  10. Thank you. I will check coolant level and the valve fiction.
  11. I need help in finding what the real name of this part is and getting one. I am looking for the bushing where the arm on the rear hub connects to the rear torsion bar also called a control arm. Dealer states I need to buy both a "new" control arm and hub! I need this bushing replaced on both the left and right rear of this. But I do not know if it would be called a control arm bushing or ?? The arm has another bushing on it at the top and it is fine. All mettle parts are fine. The part of the arm that is a U shape and bolts over the arm coming off the hub, well that is the bushing I need to replace. See photo.
  12. OK only thing I can say is ... Winner Winner Chicken Dinner! You rock! I knew this place could help. Tech me to spend days on the phone with dealer parts departments!
  13. Changed out thermostat seems to have fixed it. We will see.
  14. Today my 91 LS 400 did something it has never done. It started to show it running hot on the temp gauge. This car no matter how hot (like 130 in the shade) or how cold outside would always start, "warm up" get the temp gauge needle to dead on center of the gauge and stay there. I have never , ever seen it go higher then the center of the range. In ten years with this car. Today after driving about four blocks, I could watch the gauge start climbing. It got to the first mark on the gauge just under the highest point on the gauge. Then drooped back to the center. Then it started climbing again. Would get to the same point and drop again... But only to go back up. I did have the A/C on, but that should force the electric fans on, and help the cooling... After about 5 or 6 times it stopped doing this. And stayed dead center, as always... I had driven a total of maybe 5 miles. After it stopped doing the up and down, it stayed at the traditional dead center point. I drove about another 5 miles to my destination. Stayed there for at least 4 hours and drove home. The car did not do it once on the ride home. And it was even hotter out. I am thinking that the only thing that could make it go up and down that fast is the thermostat malfunctioning. Any thoughts on this? About a month ago I had the A/C converted over to 134A and on doing the work it was discovered that one electric fan was dead and the fan switch on the bottom of the radiator was no good. A working fan and new switch was installed and the system checked OK.
  15. WOW 100 views and no one has any info on this... Just my luck.... :chairshot:
  16. 914lps

    '91 Ls400 Fuel Door Won't Open

    I would say if that did not release it, it is not the mechanical part of the latch that is at fault. Must be something bent or misaligned etc., on the inside of the door or the door itself that has it "jammed" shut. Have you tried GENTLY prying it open at the same time someone is pulling on the emergency release? Also found this: http://us.lexusownersclub.com/forums/topic/37394-fuel-door-wont-open/
  17. 914lps

    Strange Radio Issue

    Sounds to me like either a bad radio, or a bad power connection. Either the the positive or negative. You said you did the instal. Make sure all you connections are good. A test light may show good, but the connection could be good enough for a meter or light, but not for the radio to power right. Also try shaking and moving the power wires, etc., as you test them. Try asking here: https://www.facebook.com/pages/VAIS-Technology/296685372022
  18. Hit the internet , find used Lexus parts dealers, call them. If you are in a large city should be one or more near you. Call them. If they don't have it see if they will be on the lookout for you.
  19. I think the system still sees that the drivers door is closed etc, and can still go ff. If pulling the fuse gives the results you want on the alarm, but then also kills stuff you still want power to, I would try to find a wiring schematic and find the wires from the fuse that feed the alarm, and kill that wire. Leaving power to the stuff you want. Sorry I do not have the wiring info. Also hopefully those other things are not tied to the alarm system in a way that you can't have one without the other. I hope these thoughts are of help.
  20. I wanted to post a great big Thank You! For the info you sent me!
  21. 914lps

    Ls400 A/c Problem

    I know if the pressure gets to high the compressor will shut down. On my 91 the unit has two electric cooling fans in addition to the mechanical fan. The electric ones are there to cool the condenser. Especially when the engine is at low rpm or you are driving at low speed. Do you know if these fans are working on your car? If they work like my 91 they should come on every time the AC is turned on. Hopefully someone can chime im on if the 95 is like the 91 in this regard.
  22. Still looking for information like diagnoses procedures and wiring etc......
  23. WOW, thank you! PM sent! Again Thank you.
  24. I thank you for posting and trying to help. I must apologize. Apparently I did a not so great job of posting in the first place. So I will try to fix that. When I posted: "To try to get my car on the road as we look for a replacement fan, we moved the drivers side fan to the right passenger side. As this is more inline to cool the condenser coils." I wanted to convey that in fact the "bad fan" was switched with the working fan. And we knew one fan was working and one was not, as we pulled both and bench tested with 12 volts. One worked one did not. The working fan was the one normally on the left or drivers side. However we put it back on the Passenger side, and the bad fan was left off the car. Leaving no fan on the drivers side. So you stated: "The cooling fan itself could be test if one fan is still working swap or (sorry I have a great deal of electronics background) jump the fan to 12volts and make sure it works...If it works then you have either a sensor, relay, or wiring issue." So we already did do what you recommended to see if the fan(s) were good or not before I posted the thread here. We know the one fan in the car is good. We do not know why it is not coming on. We knew at the time it could be a wiring issue (one of the reasons I asked about a wiring schematic), Sensor, switch, or computer issue. That is WHY I posted here. I am looking for more How To trouble shoot information, beyond what we already knew and did before I posted here. I apologize for somehow not making this clear when I started the thread.