Toyota Repair: Need to add to my previous question: squeeking sound (chirping sound) as go over speed bumps, penetrating lubricant, rear tires

Question
-------------------------
Followup To
Question -
Can't figure out what is causing the chirping sound  under my 4runner as I go over speed bumps.

I asked you a question just before this one re: ride and speedo cable. I can't determine if it squeeks when the front or the rear tires go over the bump. Are there places to lubricate underneath that I can do myself? If so, what kind of lube is the best to use?

Thanks again!
Answer -
Try and bounce on the bumpers and try and see if its front or rear.
Could be anywhere. Tough to diagnose a noise thru email. Kinda need to hear it.
If you can isolate to front or rear, tell me if its on the up or down stroke of the bump, I may be able to give you an educated guess.

Remember, Its Technician, not Magician. LOL

Mike

I can't hear the chirp sound when I bounce on the bumpers. All are tight/solid feeling. There is no sound this way. Maybe I'm not heavy enough to get the car to bounce enough?

I was hoping for a Magician LOL!  

Answer
Tough to diagnose a noise thru email. Kinda need to hear it.

You can spray penetrating lubricant on just about anything under there without worry. Try the front first, shocks, sway bar bushings etc.
Then the rear. Process of elimination may prove effective.

Mike