Tapping noise

144,000 MILES • 2.4L • 4 CYL • TURBO • 2WD
Avatar
MIKE STEWART28
  • MEMBER
  • 1 POST
I have a tdci. I have a tapping noise when warm and on cold starts hard starting with smoke. had belt off but noise still present.
Dec 25, 2017 at 8:39 PM
Advertisement
Avatar
STEVE W.
  • ✓Experienced Mechanic
  • 15,372 POSTS
Hard cold starting with smoking in a diesel is usually a sign of failed glow plug(s). Those are best replaced as a full set to ensure you do not have a marginal one left installed.
The tapping could be just about anything. You would need to use a mechanics stethoscope to try to narrow down if it is in the top end of the engine and valve/cam related or if it is rod/main or wrist pin related in the bottom end.
Dec 26, 2017 at 10:48 PM
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.

Frequently Asked Problems for This Vehicle