2005 Buick Rendezvous Engine Runs Rough Sometimes Code Bank1 System Lean

2005 BUICK RENDEZVOUS
13,600 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
engine runs rough sometimes, engine code is, bank1 system lean
Nov 18, 2012 at 11:03 AM
Advertisement
Avatar
DRCRANKNWRENCH1
  • ✓Experienced Mechanic
  • 3,435 POSTS
could be a leak in the exhaust near an oxygen sensor making the ECU think that it is running lean. Check the exhaust for cracks or leaks near oxygen snesors.
Nov 18, 2012 at 11:07 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