Name this sound
#1
Intermediate
Thread Starter
Name this sound
'98 LS400, 200k miles. Done it since I bought ~195k miles it and it hasn't changed. Cold start there is no noise, only after warmed up. Car runs really strong either way. Audibly annoying more than anything else.
Audio of slow revs in my garage:
MP3 AUDIO CLIP
Audio of slow revs in my garage:
MP3 AUDIO CLIP
#3
Driver School Candidate
Join Date: Oct 2015
Location: California
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Well I'm no mechanic, but my first guess is that it might be the whirring of the fan or belts . We've had an 02 tundra that does in my family since 09 and its been runnin like a champ since. Although it is currently in the shop for (timing belts and water pump).
#5
Intermediate
Thread Starter
It's a whirring sound that follows the RPMs, especially noticeable between 1k and 1.5k RPM. Less at idle. Only makes the noise when the engine is warmed up. Seems pulley/bearing-ish to me. I figured a LS400/1UZ veteran might know what it is.
Trending Topics
#8
Intermediate
Thread Starter
So I'm really leaning towards the water pump. The intensity of the sound is practically identical to the temp gauge -- basically the amount of water flow. Getting the timing belt and water pump swapped soon, so we shall see.
#12
Intermediate
Thread Starter
Thanks for the hints everyone, I'll slowly be tinkering with things over time -- main thing being the timing belt, pulleys and pump.
once I find the culprit I'll let you all know.
once I find the culprit I'll let you all know.
Thread
Thread Starter
Forum
Replies
Last Post