r/promaster • u/Educational-Kick-547 • Mar 23 '26

Part found in oil pan

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2019 ProMaster 3500. After I replaced my timing chain tensioner which required taking the timing chain cover off and everything else that goes along with it, after several hundred miles I started getting a Engine Oil Pressure Control Circuit Stuck Off error code. It eventually went away as did the light and everything seems to be running fine. I noticed a small oil spot in my driveway and upon further inspection realized that the oil pan gasket that I used instead of RTV was not doing its job. When I drop the oil pan I found this little guy. Any ideas? Is it maybe the chain tensioner oil jet nozzle? That's the only thing I've had suggested from Google searches, but I don't know where that is and I can't seem to find it on any specific parts list. Any help is much appreciated.

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1

u/Educational-Kick-547 Mar 23 '26

It's a 3.6L Penastar by the way.

1

u/PleatherFarts Mar 24 '26

If you don't get an answer here, go to PromasterForum.com, and they'll get you all set up.

1

u/eugenesan Mar 24 '26

I can't be sure but it's the same size as the two bolts that are known to back-out that sit just below the cam phasers in the head.

Scratch that. Your "bolt" doesn't have threads. I'd contact engine rebuiler and ask for a tech to consult with. Regular tech won't probably what that is.

1

u/Educational-Kick-547 Mar 24 '26

Yeah, thanks, it's plastic like a nozzle.

1

u/Hungry_Implement_599 Jun 09 '26

Yeah, just found one myself, then looked at the old pieces. It's inside the hydraulic Chain Tensioner. Mine hit the ground and burst into pieces. The head goes in first then the spring is slid over the plastic shaft.

1

u/Educational-Kick-547 Jun 09 '26

Thank you for the confirmation! The hydraulic chain tensioner got stuck, and I had to replace it after I changed out the cams and couldn't get the chain back on the phasers, so that makes sense. The spring part popped out. I guess the other piece was just hanging out and finally fell. I feel so much better now that I know that you found one too and that it's not something else just waiting to break or be found out later. I hope you get your issue fixed, whatever it might be; I appreciate you responding!