Need Help! odd Noise--97 Prado Grande

[croozza Avid PP Poster! Find all posts View Profile Close croozza]

Hi guys, I got it checked this morning. The mechanical guy checked every fan wheels and belt. He said' nothing loose' and' A/C pulley is stable too'. He is the guy who done my timing belt replacement last time. He also told me' nothing loose behind the front fan wheels(means ' engine inside'.). Now, I am really confused. Cos it just sounds no right. When every time I start the engine no noise at all. However, when I give accelerator a couple of times pressing,it happens till I turn the engine off :-(

I dont understand........ why is the mechanic checking to see if things are loose, a noisey bearing will not be loose, however the bearing may sieze up, if it does, it will throw all your belts off. When the motor is running, turn on your A/C, an see if the pitch of the noise changes, if it does, you have found the problem, I would then advise you to remove the belt for the A/C, the engine will once again be quiet, and then when you have enough $$$$$ replace the A/C compressor.

[bassmouse Lurker Find all posts View Profile Close bassmouse]

I dont understand........ why is the mechanic checking to see if things are loose, a noisey bearing will not be loose, however the bearing may sieze up, if it does, it will throw all your belts off. When the motor is running, turn on your A/C, an see if the pitch of the noise changes, if it does, you have found the problem, I would then advise you to remove the belt for the A/C, the engine will once again be quiet, and then when you have enough $$$$$ replace the A/C compressor.

Thanks mate! Really appreciate your suggestion. I found a video from Youtube. It is a belt dressing product promotion. However, it shows the same noise I found in my car. I would like to try one. Check it out: http://www.youtube.com/watch?v=LqFDMC5jqFE
What do you think?

[croozza Avid PP Poster! Find all posts View Profile Close croozza]

Thanks mate! Really appreciate your suggestion. I found a video from Youtube. It is a belt dressing product promotion. However, it shows the same noise I found in my car. I would like to try one. Check it out: http://www.youtube.com/watch?v=LqFDMC5jqFE
What do you think?

If that is the noise, just try some belt grip spray, all automotive suppliers will have this.

[Seththecursed Member Find all posts View Profile Close Seththecursed]

Get some of this stuff and use on belts. Works a treat. Its what we use in the trade and its not messy like the sprays.

http://www.supercheapauto.com.au/onl...91#Description

[bassmouse Lurker Find all posts View Profile Close bassmouse]

Get some of this stuff and use on belts. Works a treat. Its what we use in the trade and its not messy like the sprays.

http://www.supercheapauto.com.au/onl...91#Description

Just bought sprays from Supercheap ...

[Seththecursed Member Find all posts View Profile Close Seththecursed]

With the grip spray stuff I don't think your suppose to spray it on moving belts (while engine is running). Just check the directions.

[bassmouse Lurker Find all posts View Profile Close bassmouse]

With the grip spray stuff I don't think your suppose to spray it on moving belts (while engine is running). Just check the directions.

It says 'Yes' I have to turn the engine on while spray it. I've double checked the YOUTUBE clips they told the same thing...

[Seththecursed Member Find all posts View Profile Close Seththecursed]

Yeah go with the directions just checked the can I have and it says the same just mentions not to use on multi ribbed belts. My mistake.

[bassmouse Lurker Find all posts View Profile Close bassmouse]

Thank you guys! It is eventually solved

[Stranger Lurker Find all posts View Profile Close Stranger]

It sounds like I might have the same problem. I talked to a Toyota mechanic and he reckons it might be one of the idler pulleys. First step will be to remove the drive belt and start the engine to see if the noise is still there.
Can anybody tell me where the tension adjuster is to remove the belt. Also a drive belt diagram so I can put it back on.

[dave0074 Lurker Find all posts View Profile Close dave0074]

hi, Ive had the same problem with my 1997 prado ,after pulling all the belts off it turned out to be the aircon adjuster pully starting to sieze up. the adjuster bolt is underneth the pully so you have to remove the bash plates to see it, (first loosen off the centre bolt).You can pick up a new bearing at repco quite cheap .dave