1985 Pontiac Firebird knocking sound

Avatar
JOEJR30
  • MEMBER
  • 1 POST
Noises problem
1985 Pontiac Firebird 6 cyl Two Wheel Drive Automatic N/A miles

I just put a new transmission in my vehicle. I start my car and I hear a loud knocking sound that gets louder when pressing the accelerator. Engine runs fine while idling at cool temp but when heats up the enigine startys smoking then dies and won't start again til its cooled off. What could be causing this and how easy is it to fix? Trying to save money by doing the repairs myself.
Sep 1, 2010 at 2:18 PM
Avatar
IAMTHEREALSMITH
  • MEMBER
  • 1 POST
you have a blown engine. the knocking sound is a blown piston. you have to replace the whole engine which isn't that easy if you don't know what your doing
Nov 16, 2011 at 11:30 AM
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