Questions & Answers for: 99 chevy silverado rpm

99 chevy silverado Unstable idle when it worms up Hello i have a 99 silverado 6.0 that when it warms up the idle is unstable it goes up and down or when i come to a stop. once i go park or neutral the

99 chevy Silverado Z71,5.3 engine.....will not rev when hot..... When cold, starts and runs great. After 10-15 miles and gets warm, or the more I drive it, it looses RPM's. Slows down in passing gears

99 chevy silverado. It started acting up, have to floor it to get it started and then idles real rough, if I hold the gas down after started for about 5 secs it will finally register and rev up but if

...99 silverado z 71 with the 5.3 engine with 235.000 miles we had a problem with starting it when it was warm found out it was a bad fuel pressure regulator replaced it now it starts all the time but ...

99 Chevy Silverado 1500 my RPM gauge stopped working but runs fine how can this be fixed? replace all gauge motors ( stepper motors) in the intrument cluster . google shops in your area that will just