Car loses power around 30mph
Hello there, thanks for writing in. Many different faults can cause your 2002 Chevrolet Blazer to lose power. The most common would be spark plugs (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-spark-plugs), wires, fuel pump (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-pump), fuel filter (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-filter), alternator (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-alternator), shift solenoid, low transmission fluid,...