New clunk when starting

[ramffml]

I noticed this in the past that my truck would sometimes clunk when starting. As soon as the engine revs up when it catches, and you feel the truck wiggle a little, right then there is a clunk. It's been a few months since I noticed it and just thought it went away on it's own.

Found out how to make it appear. Foot on the brake, push the start button, keep the brake pressed while engine turns over and catches. Without the brake being applied, it doesn't clunk ever. You have to push the brake to get the engine to turn over, but I usually just quickly and lightly press brake and then the button and then instantly let go of brake so the brakes are not usually applied by the time the engine actually catches. Today I was distracted and kept my foot on the pedal for a few seconds and that's how I figured that out.

Anybody else notice this? Might it be related to the clunk I'm experiencing in this thread:

Clunky sound

I’m getting a clunky sound when switching from drive to park, or reverse to park, or drive to reverse. The truck only had 1000 miles when this first started. I brought it in to the dealership and they said the truck was in learning mode and is why it was acting up. That doesn’t sound right to...

5thgenrams.com

It does sound quite similar.

And now my brakes are groaning as I back up when truck is cold too.

 

[7amada]

Did we find out what this is. I also have a clunck when the truck starts

 

[Ataboyrebel]

I had this clunk... i was assuming that it was the exhaust(maybe with slush or ice on it) that was hit the bed step or something similar). Today, i went to my Ram dealership to install my new borla type s exhaust. They realise that the tubing that include the resonator was install upside down(slight slope:not to apparent with stock exhaust but, impossible to install the aftermarket exhaust without clearance issue). For now, no clunk and i will give a follow up in 2 weeks.

 

[Billy James]

I noticed this in the past that my truck would sometimes clunk when starting. As soon as the engine revs up when it catches, and you feel the truck wiggle a little, right then there is a clunk. It's been a few months since I noticed it and just thought it went away on it's own.

Found out how to make it appear. Foot on the brake, push the start button, keep the brake pressed while engine turns over and catches. Without the brake being applied, it doesn't clunk ever. You have to push the brake to get the engine to turn over, but I usually just quickly and lightly press brake and then the button and then instantly let go of brake so the brakes are not usually applied by the time the engine actually catches. Today I was distracted and kept my foot on the pedal for a few seconds and that's how I figured that out.

Anybody else notice this? Might it be related to the clunk I'm experiencing in this thread:

Clunky sound

I’m getting a clunky sound when switching from drive to park, or reverse to park, or drive to reverse. The truck only had 1000 miles when this first started. I brought it in to the dealership and they said the truck was in learning mode and is why it was acting up. That doesn’t sound right to...

5thgenrams.com

It does sound quite similar.

And now my brakes are groaning as I back up when truck is cold too.

Yes, I think this has been reported thousands of times. Pretty much everyone had the same result: hold brake = clunk; tap brake = no clunk. I stopped following the conversations because mine never clunks anymore (since I figured out the brake pedal thing). I had my dealer look at it once and they couldn't duplicate. Right now, its just no longer an issue to me since I figured out to just let off the brake.

 

[Ataboyrebel]

Yes, I think this has been reported thousands of times. Pretty much everyone had the same result: hold brake = clunk; tap brake = no clunk. I stopped following the conversations because mine never clunks anymore (since I figured out the brake pedal thing). I had my dealer look at it once and they couldn't duplicate. Right now, its just no longer an issue to me since I figured out to just let off the brake.

My point was just: did your pipe was install upside down at the factory doing clearance issue. If not, enjoy your new Ram. If, and only if, the pipe was install upside down, revert it!

 

[Billy James]

My point was just: did your pipe was install upside down at the factory doing clearance issue. If not, enjoy your new Ram. If, and only if, the pipe was install upside down, revert it!

Sorry, I missed the point. I'll have to take a look.

 

[Ataboyrebel]

No problem! Slight angle... very slight angle! But enough so aftermarket exhaust(or torque and brake startup ...maybe) cause exhaust clearance. If that resolve my problem EVERY time, I’ll will post the position(more up or more down) in 2 weeks!

 

[Jstnbcks’dt]

Rental truck on 1-23-20 didn’t do this at all (hemi w/ etorque)

rental truck today 2-6-20(hemi w/ etorque) does it, and slips badly in first. only has 955 miles on it.

I feel lucky mine isn’t as screwed as this one. The first rental drove like a dream.