why does the check engine light come on when I push the throtle past 50 on an up hill on my 04 silverado
the oxygen sensor is having trouble finding any oxygen...it's all used up.
cataletic convertor pluging 40% no o2
Your oxygen sensor might be failing
Looking for a Used Silverado 1500 in your area?
CarGurus has 182,536 nationwide Silverado 1500 listings starting at $1,595.
Search Chevrolet Silverado 1500 Questions
Chevrolet Silverado 1500 Experts