89 chevy problems
when the truck is cold it runs excellent but when it warms up it dies out and I lose all horsepower I can only get it to go 20mph I did a full tune up, changed cathletic converter, feul pump, fuel filter. and the throttle body sprays good. I need help with this problem. and I also changes map sensor
Mass airflow sensor, mine had the same problem.
Search Chevrolet Silverado 1500 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet Silverado 1500 Experts