i recently just purchased a 03 single cab 4.8l 5 speed with 65,000 miles
im having 2 problems
First....
it just started giving me a "service brake booster" message
the truck stops fine and doesnt seem to be low on brake fluid, im hoping its just a quick fix, cause i sure hate the dealers
second....
I drove my chevy today and i noticed while doin like 20 in my neighbor hood that my tach was at 6,000rpm!! i was like wtf and quickly shifted to nuetral and then the truck only went down to 4,500rpm. i drove back to my house and shut it off while off the tach was at 3,000rpm!
im kinda stumped, im guessing its probally a sensor issue or what but idk any ideas
