8yota9

there is a strange noise comming from some were under the hood i think. sounds like a empty coke can in my moter eney ideas on what it could be?

yota_krazy

maybe an exhuast leak? Try checking your engine oil level too. A good bet for noises like this would be to get a stethescope and probe around different areas of the eingine compartment until you find the source of the noise. Good luck!

drew303

Does it do it at a certain RPM, increase with an increase in RPM?

Could be the fan hitting it's shroud or an exhaust leak or something worse. Who knows need more details.


I know from experience a leak at the exhaust manifold can sound like a rattle.

drew303

oh, could also be a light rattling

8yota9

it sounds more like it is comming from the pasengers side down by the manifold it dose it wen ideling and wen gently taking foot off cluch wen ingaging to first also wen cold f you hit the gas it bogs down verry strange maks me reel nervis cuz shes my baby and i put all i got into her

8yota9

eneyone???? help please

milowilli

Sounds like the reed valve..they can make a racket when bad..it is on the passenger side near the firewall..you can pull off the vacuum hose on the valve to see if the noise stops. The hose that goes from the air filter to the metal pipe on top of the manifold can be removed too to see if the noise goes away( the bigger of the 2 hoses they are together..NOT THE BIG FAT AIR INTAKE HOSE).If it does replace or bypass the valve...hope this is your problem.

The Toe Cutter

This wouldn't explain the bogging down, but my '94 V6 makes a similiar type noise when its cold.

Sounds like a bad bearing.....I find out when I turn ON the A/C the noise goes away. Assuming its a bearing inside the A/C compressor, however I haven't pursued fixing it do to costs & it only does it in winter months.

Just my $.02

8yota9

well i have a new exaust from the down pipe back so i dono if it is a leak in it but i did try putting the ac on and it went away but it also makes it in 4th wen ur doin like 35v same problum the ac??? also there is a ticking noise that gose with the rpm but lessens in hier reves and gears eney clue???

8yota9

Dose this help eneyone with a answer cuz i have no clue

The Toe Cutter

Weird, I have a ticking noise when its cold (sounds like speedo cable), but I looked behind dash & I have electronic speedo unit I guess. My ticking noise happens regardless of engine RPM so I think its something in the front end or dash.

If it ALWAYS goes away when A/C is on, then I would dig into that & see if its worth it replace bearing inside compressor. I think when I looked into it, the part/labor was almost not worth it.

8yota9

could the ticking noise be from the valves and it also rattles when in hi gears like 4th at low speeds still the ac yo think

benwahballs

i had what sounded like a very faint rattle at certain times when I first bought my 89 v6 5spd. It was a bad bearing if I recall, I believe the timing belt idler pulley bearing.

Have you tried yota krazys stethescope idea? Have someone adjust throttle/play with clutch and try and pinpoint an area where it's coming from.