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  1. J

    clog in coolant system?

    Hi Everybody, I've experienced an overpressure sort of issue on the inlet hose just upstream of the heater control valve in the engine compartment near the firewall. Coolant is full and tried to evacuate all air out of the system by loosening the 17mm bolt near the water pump. It seems as if...
  2. J

    91 LS400 heater problem

    Hey gang, I've been attempting to get my hands around a heater issue. I even went through the laborious task of pulling out the heater core. The heater core heated uniformed when circulated with hot water and there was no restricted flow. The heater control valve opens properly, thermostat...
  3. J

    91 ls400 climate control LCD question

    Do any of you have experience ordering a climate control LCD through Pioneer directly? I've heard they have an LCD replacement part for the LS, part no. CAW1385. I spoke with a phone rep but were not willing to share any details of the part, i.e. dimension, progs, etc. I just wanted to be...
  4. J

    91 ls400-how to replace heater core?

    Hey Everybody, Have any of you changed out the heater core on a first gen LS (I'm guessing I'll have to access through either the glove box or behind the temp control unit)? I have some sort of clog downstream of the heater control valve and I'm going to attempt to remedy it by changing out the...
  5. J

    91 lexus ls400 timing belt question

    Hey gang, I've recently replaced the timing belt on my LS and suspect my timing might be slightly off. When starting there was an obvious vibration. When I installed the belt I made sure the small groove on crankshaft spindle was aligned with the small nipple on the engine (also the CR mark on...


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