4.3l Tune Up

[drumset5994]

Whoever invented that setup should be shot!

 

However, i do love the engine

 

Changed Cap, Rotor, Wires, Auto-Pulley Tensioner, Idler Pulley

 

Truck runs smooth and purrs like a kitten! At WOT it roars up hills!

 

Gotta love a good tune up!

[southernballa]

What is the auto pulley tensioner and idler pulley? never heard of any of those? thinking of doing a tune up on mine but i hate paying people to do my work. i like learning as i go

[Webb]

hmm, never heard of changing the auto pulley tensioner for a tune up. Was it bad?

 

I usually do plugs; cap; rotor; fuel filter; air filter; pcv valve; and an oil change. really makes a big difference if you do it all at once.

[Slickgib]

where is the pcv located. i want to spray some seafoam in there i have the 4.3 l

[Webb]

Dont have a 4.3 to look at, but they are usually located on top of one of the crankcase covers. usually looks like a small cylinder type thing sticking outa a rubber gromet w/ at least one vacuum hose going into it.