Knock coming from under passenger side behind engine

2002 DODGE RAM
120,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
AMY MAES
  • MEMBER
  • 1 POST
When driving my truck there’s a noise that comes from under it that sounds like knocking. It’s from the passenger side and it’s mostly when the car is in drive and I don’t have my foot on the gas really hard. it’s only when it’s a little bit on the gas. I will upload a video.
Videos (Click to enlarge)
Attached Media
Attached Media
Nov 1, 2019 at 7:52 AM
Advertisement
Avatar
KASEKENNY
  • ✓Experienced Mechanic
  • 18,907 POSTS
Unfortunately, that sounds like a piston slap. Meaning an internal engine issue. I would get this addressed ASAP because right now it may only need a piston. If it fails then you will need an engine. It could just be a bearing on the crankshaft but either way we need to get it addressed because if you just let it go, you will need an engine.

The first test you need to do, is drain the oil and look for metal. I imagine you will see quite a bit.

Let me know if you have questions.
Nov 1, 2019 at 1:28 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle