Clunk noise on TRD PRO

[yume316]

I bought a 2017 TRD PRO new. I have noticed a clunk noise since about 2-3k miles. It happens when changing gear into reverse after starting the truck. Happens more often on cold starts and cold weather. I let dealer know during first service, they had it all day to open it up take a look. They could not find any issue. If I hold brake down harder it’s slightly less noise clunk. Do you think this could have anything to do with transfer case fluid? Friend of mine thinks it could be that because I don’t put the truck in 4wd often.

Also took it in to dealer today had them check it out they said they couldn’t find anything and did a health check etc.

Thanks

 

[nb rob]

U joints can clunk when shifting in to reverse and back in to drive. Especially when under load. (parked on a hill, etc) I had a truck that used to chew through them, and the clunk would get loud prior to them showing wear on the road. A u joint clunk will have a slight ring to it, in my experience

all of the U joints on the 4runner are greasable. Perhaps it's time to give them some TLC.

 

[JSparky]

http://www.toyota-4runner.org/5th-gen-t4rs/185200-trd-pro-clunk.html

 

[17KT4R]

I bought a 2017 TRD PRO new. I have noticed a clunk noise since about 2-3k miles. It happens when changing gear into reverse after starting the truck. Happens more often on cold starts and cold weather. I let dealer know during first service, they had it all day to open it up take a look. They could not find any issue. If I hold brake down harder it’s slightly less noise clunk. Do you think this could have anything to do with transfer case fluid? Friend of mine thinks it could be that because I don’t put the truck in 4wd often.

Also took it in to dealer today had them check it out they said they couldn’t find anything and did a health check etc.

Thanks

I've read a lot of these threads and while everyone may have a different issue, the park to reverse or reverse to drive throw when the vehicle is on high idle is hard on the driveline components, trans, you're well to use the brake pedal under those circumstance to reduce the sudden torque impact greatly. If that is where you're hearing clunks now perhaps you've not been doing that? I know I recognized that immediately with this truck, vehicle takes awhile to come off high idle (above 1K) so shifting from park to drive without a firm step on the brake is going to be a good amount of torque at the joints and clunking is not surprising I guess if you keep at that impact. A friend of mine with an SR5 has the same characteristics.

I also hear a quick light knock when turning off a road into a driveway at speed when the rear axle articulates quickly but I'm not going to take it to the dealer just so they can hit all my rear end nuts and bolts with an impact wrench cranked way up, no thanks. Unless it's hammering back there then I'll check it myself. Anyway - try hitting all those zerks with grease, my vehicle is just a daily driver but I'll probably give them all a shot of grease annually anyway. Ok so my point is, maybe what you're hearing is simply normal wear at this age, mileage, things have loosened up a tad.

 

[RusPro17]

Did you check to see if one of the rear shocks are rubbing the wheel weld. There is posts on here about it. Mine was rubbing when I bought my Pro. It sounded like a clunk wild driving.

 

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Grease the slip yoke on driveshaft.