Squeaking only when accelerating

09 Tacoma with 60,000 miles on it. Just recently noticed when starting to accelerate from a stop I can hear a high pitch speaking. It can only be heard below about 20 mph and only happens when I press the gas pedal. I've tested it by coasting down a long road slowly, the squeak only happens when the gas is pressed, lift off or put it in neutral and it goes away.

Since it only happens when the gas is pressed I don't think it's springs or wheels, so what does that leave?

 

When you accelerate the drive train will twist. I'd check motor mounts and tranny mounts for damage/broken/dry rot. Also anything that tan contact the engine/drivetrain/exhaust. Also try this... on a safe level spot, put the parking on and put it in gear and give it a "little" gass to get the drive train to torque to see if you can duplicate to locate it ....

edit - also check all mounting bolts for mounts, tranny support bar, etc.

 

Check your rear leafs as well. Mine did that and one of my rubber isolaters had came out.

Also check your carrier bearing for the rubber to be worn out. 60,000 it should be fine but you never know.

 

Turns out it was one of my u joints. Only 65000, that's early isn't it?

 

IT happens .... but they normally go over 100K. Check to see if the other one(s) have grease fittings (or a place to install one) and grease them if possible. (mine has fittings). Since the shaft is out I'd considered changing the others with grease fitting types...

 

I had stock U joints when I traded my '06 with 175k, and I towed and occasionally heavy at that.

 

It is early if you don't grease them often enough. I grease mine every oil change and make sure clean grease comes out of all four caps. Messy but required for a long life.

 

Typically the U-joint at the rear axle takes one heck of a pounding from the angle and not being doubled up like the ones after the carrier bearing. If the carrier bearing is a little loose it can cause the u-joint to fail faster too. A little test I use to check which one is going bad and narrow it down; try getting a can of lube (similar to WD40 spray), and hose down one u-joint before leaving for somewhere over the course of a couple days. If the squeak stops that's your problem. They squeak then clunk, and if it's clunking then you're missing part of a cap most likely. Just an added thought, but mines in need of replacement as well. I'm looking for a good replacement, but would like some input on the different companies out there. I've seen Moog, Lakewood, Spicer, Federnal (think that's how it's spelled), and a couple others. Anyone have experience with these different ones and have a preference and why?