Buzzing noise coming from engine?!? 95 ES300
04-19-07, 03:29 PM
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Buzzing noise coming from engine?!? 95 ES300
Hi all!!! First of all I love my car, these Lexus' are a great cars. I Bought this 1995 ES300 last year, a retired lady traded it in with 128K, all maintenence done regularly at a Lexus dealer, and the engine had alot of work done to it about 100K mark including the timing belt, tune-up, filter changes, etc. The car now has 136K and is running strong.
When I start the car is has an odd higher pitch buzzing noise that stays while at idle, does not sound like a metallic sound. I live in Iowa, and during the winter, if the car was very cold, around 0-20 degrees, it would be a louder more high pitch sound until it warmed up.
The only issues with the car is the AC will only stay cold for a few minutes before cycling itself off. I think I need to recharge the system....
O yA... one other thing that scares me... hope not too bad... I noticed just last couple weeks that while the car was cold it didn't want to shift from 2nd to 3rd. When it did, it shifted fine, it just held the gear longer than normal... I had to tap the gas to get it to engage the 3rd gear. Its happened a few times. Now its fine.
I know long thread, just what ya'll to know everything going on, maybe help me better diagnose it. Thanks for all your help!!
When I start the car is has an odd higher pitch buzzing noise that stays while at idle, does not sound like a metallic sound. I live in Iowa, and during the winter, if the car was very cold, around 0-20 degrees, it would be a louder more high pitch sound until it warmed up.
The only issues with the car is the AC will only stay cold for a few minutes before cycling itself off. I think I need to recharge the system....
O yA... one other thing that scares me... hope not too bad... I noticed just last couple weeks that while the car was cold it didn't want to shift from 2nd to 3rd. When it did, it shifted fine, it just held the gear longer than normal... I had to tap the gas to get it to engage the 3rd gear. Its happened a few times. Now its fine.
I know long thread, just what ya'll to know everything going on, maybe help me better diagnose it. Thanks for all your help!!
04-19-07, 05:08 PM
#2
Lexus Test Driver
Hi all!!! First of all I love my car, these Lexus' are a great cars. I Bought this 1995 ES300 last year, a retired lady traded it in with 128K, all maintenence done regularly at a Lexus dealer, and the engine had alot of work done to it about 100K mark including the timing belt, tune-up, filter changes, etc. The car now has 136K and is running strong.
When I start the car is has an odd higher pitch buzzing noise that stays while at idle, does not sound like a metallic sound. I live in Iowa, and during the winter, if the car was very cold, around 0-20 degrees, it would be a louder more high pitch sound until it warmed up.
The only issues with the car is the AC will only stay cold for a few minutes before cycling itself off. I think I need to recharge the system....
O yA... one other thing that scares me... hope not too bad... I noticed just last couple weeks that while the car was cold it didn't want to shift from 2nd to 3rd. When it did, it shifted fine, it just held the gear longer than normal... I had to tap the gas to get it to engage the 3rd gear. Its happened a few times. Now its fine.
I know long thread, just what ya'll to know everything going on, maybe help me better diagnose it. Thanks for all your help!!
When I start the car is has an odd higher pitch buzzing noise that stays while at idle, does not sound like a metallic sound. I live in Iowa, and during the winter, if the car was very cold, around 0-20 degrees, it would be a louder more high pitch sound until it warmed up.
The only issues with the car is the AC will only stay cold for a few minutes before cycling itself off. I think I need to recharge the system....
O yA... one other thing that scares me... hope not too bad... I noticed just last couple weeks that while the car was cold it didn't want to shift from 2nd to 3rd. When it did, it shifted fine, it just held the gear longer than normal... I had to tap the gas to get it to engage the 3rd gear. Its happened a few times. Now its fine.
I know long thread, just what ya'll to know everything going on, maybe help me better diagnose it. Thanks for all your help!!
AC hoses are porous and desinged to SLOWLY leak so being a 95, if the system has no leaks you can recharge with R134a. Fortunately for my r12 system I do an evac & recharge every spring and I "borrow" the r12
from my work.Where is your noise cominf from? Under the hood? Inside the car? Its not unusual for an alternator to whine after cold start up because of all the amps you sucked out of the battery. Check belts & pulleys and you can take a mechanics stethiscope and see where its coming from.
(Watch out for belts, fans etc) lolOh if you cant get a stethitscope, take a long screwdriver and put your ear on the handle and start poking around. Youll know it when you hit the spot.
Good luck and welcome to CL
BTW 136K is nothing for a well maintained ES 300.
Its just a baby!
04-20-07, 03:34 PM
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Hiya!!
OK... I bought the recharge kit for my AC... looks pretty easy.
Should I change the transmission fluid myself or should I take it to the dealer. The nearest Lexus dealer is hours away... maybe Toyota dealer? 
The buzzing noise comes from the engine bay, not too sure where... I will have to snoop around some...
THANX FOR ALL THE HELP!!!!
OK... I bought the recharge kit for my AC... looks pretty easy.
Should I change the transmission fluid myself or should I take it to the dealer. The nearest Lexus dealer is hours away... maybe Toyota dealer? The buzzing noise comes from the engine bay, not too sure where... I will have to snoop around some...
THANX FOR ALL THE HELP!!!!
Last edited by isiginamo; 04-20-07 at 03:56 PM.
04-20-07, 06:06 PM
#6
Lexus Test Driver
Hiya!!
OK... I bought the recharge kit for my AC... looks pretty easy. Should I change the transmission fluid myself or should I take it to the dealer. The nearest Lexus dealer is hours away... maybe Toyota dealer?
The buzzing noise comes from the engine bay, not too sure where... I will have to snoop around some...
THANX FOR ALL THE HELP!!!!
OK... I bought the recharge kit for my AC... looks pretty easy.
Should I change the transmission fluid myself or should I take it to the dealer. The nearest Lexus dealer is hours away... maybe Toyota dealer? The buzzing noise comes from the engine bay, not too sure where... I will have to snoop around some...
THANX FOR ALL THE HELP!!!!
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