In the engine well is a round black plastic ball looking thing with a small hose--WHAT IS IT??

In the engine well is a round black plastic ball looking thing with a small hose--WHAT IS IT?? 2 Answers

This sit above the fuel canister on the drivers side. Have no idea what it is used for. Pictures I have seen have this in them but do not denote what it is or what it does.

I have a 1998 gmc 4.3 pickup truck and it wont start. Any ideas why? 4 Answers

I replaced with new fuel pump, coil, spark plugs, spark plug wires, distributor cap, rotar button, all new brake system, it was working fine for 3 weeks then it just died. It starts when you pri...

where does the gtreen plug pulg in at on a 2.5 1990 s10 1 Answer

Value of a car. 2 Answers

I have a 1986 GMC s-15 Gypsy( Really nice bucket seats, different interior styling) with an extnded cab. It has a crate motor with about 50,000 miles, and had air conditioning put in about 10 years a...

I have a 1989 gmc s-15 with a 4.3 liter. Truck runs alright but is kind of sluggish on take off. Also when jumping on freeway i step on gas and it takes it a while to pick up speed. Revolutions go up 5 Answers

But it seems something is holding it back. Changed sprk plugs,wires,fuel filter , injectors and it seems to be the same. Can anyone help