diagnostic code p0411 clear code light came back on what check valve is sticking and where it would be i have a 08 gmc envoy with 4.2l
Nov 2, 2012 at 4:43 PM
2008 Gmc Envoy Diagnostic Code P0411 Clear Light Came Back On Check Valve
NOVATECH66
- MEMBER
- 1 POST
Advertisement
P0411 Secondary Air Injection System Incorrect Flow Detected
The check valve is in the air supply line to prevent exhaust gases from entering the air pump-
The check valve is in the air supply line to prevent exhaust gases from entering the air pump-
Nov 2, 2012 at 4:55 PM
🔧 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.