SPONSORED LINKS

1999 Chevy Astro Van

Tiny
DANIEL1
  • MEMBER
  • 1999 CHEVROLET ASTRO
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 118,000 MILES
I have a 1999 Chevy Astro Van. The analyzer says "Catalyst System Insufficiency Below Threshold Bank 1." If you leave van sit for 3 days, it cracks and backfires when it trys to start. Sometimes you almost have to grind the battery dead to before it will start. What would that readout mean?
SPONSORED LINKS
Tuesday, December 7th, 2010 AT 12:36 AM

2 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Catalytic converter has most likely faild / clogged up causing this issue
Was this
answer
helpful?
Yes
No
Tuesday, December 7th, 2010 AT 1:01 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
That's most likely a worn out Converter. I doubt it's plugged up because in order to set that code, the rear 0/2 has to mirror the front 0/2 and that won't happen if it's clogged. It's likely just not chemically doing the job any more.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, December 7th, 2010 AT 1:07 AM

Please login or register to post a reply.

Related Engine Not Running Content

How to fix an engine that wont start
VIDEO
How to fix an engine that wont start
Instructional repair video
Engine Not Starting - Top 3 Easy Steps
GUIDE
Engine Not Starting - Top 3 Easy Steps
Over the past 20 years on 2CarPros we have identified the top three problems that are easily fixed. This can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE

Sponsored links