1989 Oldsmobile 98 erratic engine noise at idle

1989 OLDSMOBILE 98
250,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
ATLLOYD
  • MEMBER
  • 2 POSTS
have eratic knocking type noise while engine at idle,oil level is good and was recently changed,noise coming from front upper part of engine.what is most likely the cause?
May 3, 2010 at 2:54 PM
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be valve lifters or oil pressure problem due to engine bearings and worned out oil pump.
May 11, 2010 at 3:04 AM
🔧 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