Weird Buzzing noise - Toyota Nation Forum : Toyota Car and Truck Forums

v6camrydriver · 10-27-2009, 07:19 PM

'94 3VZ-FE Auto Camry.Hey all, recently had a trans swap/torque converter overhaul done recently and ever since there has been a wierd occaisional buzzing noise.The noise only occurs after the engine has been driven up to operating temperature and then turned off. After sitting for a few minutes if I start it up again I can hear a buzzing noise coming from the engine bay when the engine revs are between roughly 1100 and 1400RPM.The noise goes away after a minute or so and dosen't happen again until the next time the engine is stopped and then started.I've noticed no performance issues.Any ideas?

***JohnGD*** · 10-28-2009, 12:41 AM

Use a short garden hose and put one end against the transmission, near the torque converter; the other end to your ear. Is that where the noise is coming from? Be careful of moving engine parts.

Quote:

Originally Posted by v6camrydriver

'94 3VZ-FE Auto Camry.Hey all, recently had a trans swap/torque converter overhaul done recently and ever since there has been a wierd occaisional buzzing noise.The noise only occurs after the engine has been driven up to operating temperature and then turned off. After sitting for a few minutes if I start it up again I can hear a buzzing noise coming from the engine bay when the engine revs are between roughly 1100 and 1400RPM.The noise goes away after a minute or so and dosen't happen again until the next time the engine is stopped and then started.I've noticed no performance issues.Any ideas?

v6camrydriver · 10-28-2009, 04:52 AM

Will do mate, hadn't thought of that. Will let you know what I find.

v6camrydriver · 11-02-2009, 04:00 PM

Just an Update folks:I've had the hose ready in the boot all week but wouldn't you know it it hasn't made the sound at all.I think Mr. Murphy might be having a laugh...

tacosteelersman · 04-15-2010, 06:26 PM

My moms Avalon made a strange buzzing today after she drove to my house approx 10 miles, then she turned the car off at my house and a strange, lite, buzzing occured that was an inconsistant buzz, buzzing then going away then buzzing again. The key was off and out of the switch, the buzzing sounded like it was comming from the transmission starter area.. BTW 96 Avalon 1MZ-FE 170,000 miles no recent work done to the car in this area.. Any ideas?? It is right at the charcoal canister could this be the buzzing gasses releasing into canister, if so does this show future problems on the way???

tacosteelersman · 04-17-2010, 02:17 PM

BUMP... Anybody fimilar with a buzzing under the hood with no key on?? If I can catch it doing it again I will loosen the gas cap to try to changs or eliminate the buzz.. Any other suggestions?? Thanks..