Question about 1993 Chevrolet Suburban
WE FAILED THE SMOG TEST BECAUSE OF HIGH NOX. HAS NEVER FAILED BEFORE. 1993 CHEVY SUBURBAN 1500 4X4. COMPLETELY STOCK. WHAT SHOULD I CHECK FIRST.
Nox is from running lean..... its realy high temps that cause this.......... replace the o2 sensors this should cure that any more help let me know
Posted on Oct 24, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Oct 24, 2013 | 1998 Dodge Dakota
Aug 21, 2013 | Cars & Trucks
Jun 07, 2010 | 1999 Chevrolet Astro
Mar 10, 2010 | 1992 Dodge Stealth
Jan 12, 2010 | 1996 Toyota 4Runner
Mar 15, 2009 | 1982 Ford F 250
1,087 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: