LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

car making wierd wizzing noise after changing thermostat and coolant temp. sensor

Thread Tools
 
Search this Thread
 
Old 05-01-10, 09:30 AM
  #1  
topgun129
Rookie
Thread Starter
 
topgun129's Avatar
 
Join Date: Feb 2008
Location: Il
Posts: 59
Likes: 0
Received 0 Likes on 0 Posts
Default car making wierd wizzing noise after changing thermostat and coolant temp. sensor

Hi Folks,

I'm kinda at a loss here as to why after changing the thermostat and coolant temp. sensor the car started making a wierd wizzing noise after the car was running for about 5 minutes. It started fine.

As soon as I heard the noise I immediately turned off the car.

A few things...

When I pulled the hose to get to the thermostat and when I pulled the thermostat out I lost coolant, but did add some before starting the car (but I'll admit not as much as I lost). As of right now the resevoir is sitting empty. And coolant is leaking from the thermostat housing. I think I'll need that paper filter thing.

When I did the sensor I had to remove a lot of part to get to it (just like doing a tune-up kind of) but I did put everything back the way it should be.

Any ideas? Luckily I didn't see any smoke or anything dangerous happen, but I am worried that nothing serious occured due to that wizzing noise.

Thanks for your input!
Old 05-01-10, 10:51 AM
  #2  
etex
Driver
 
etex's Avatar
 
Join Date: Apr 2007
Location: Texas
Posts: 180
Likes: 0
Received 1 Like on 1 Post
Default

I think I would begin by adding the correct amount of the proper coolant....
Old 05-01-10, 12:05 PM
  #3  
PureDrifter
BahHumBug

iTrader: (10)
 
PureDrifter's Avatar
 
Join Date: Aug 2004
Location: California
Posts: 23,918
Received 94 Likes on 86 Posts
Default

air bubble
Old 05-01-10, 09:13 PM
  #4  
willhickey
Lexus Test Driver
iTrader: (1)
 
willhickey's Avatar
 
Join Date: Feb 2009
Location: north caroilina
Posts: 852
Likes: 0
Received 0 Likes on 0 Posts
Default

fix that leak!!!!! if not its going to keep getting air etc.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Monty87
Performance & Maintenance
6
03-24-24 02:21 PM
afpj
RX - 3rd Gen (2010-2015)
2
02-24-18 10:43 PM
DanielDD
Performance & Maintenance
8
12-04-14 03:55 PM
shumif1
RX - 1st Gen (1999-2003)
2
06-09-13 01:13 PM
sbman1990
LS - 1st and 2nd Gen (1990-2000)
11
05-26-06 03:38 PM



Quick Reply: car making wierd wizzing noise after changing thermostat and coolant temp. sensor



All times are GMT -7. The time now is 08:18 AM.