Problem with my 99 silverado
#1
Problem with my 99 silverado
When I am driving my truck it will not go over 40 mph sometimes it revs the **** out of it and makes a loud knocking under the hood sometimes after it does that for 10 minutes it works fine sometimes it dont and sometimes i dont have a problem with it at all but its a real bitch pulling out on to main roads where wont get up to speed cant figure out whats wrong with it any ideas
#3
A plugged up catilytic convertor will do the same thing. Does it blow any black smoke? A fuel delivery problem will also cause this.....As said...scan the computer for codes this will help ALOT.