This kind of depends on which hose you're talking about.
Vacuum hose is available at most any auto parts house,
usually sold by the inch. Measure and buy what you need,
plug it onto the fittings and you're done.
If it's a custom shaped hose, it might be more difficult, but
again, check your parts house. They often have the hoses
listed on their computers and can help you find either a direct
replacement, or a universal replacement.
If all else fails, I'd hit the junkyards and hope to find a Sunfire
or a Cavalier with an intact hose.
You can sometimes fix a hose with electrical or Duct Tape, but
that should be a temporary fix. If the hose has split where it
connects to a fitting, you might be able to buy and apply a hose
clamp to help close the crack. Again, this is a temporary fix.
Buy a new hose ~
how to check fuse for horn in a 1998 Pontiac sunfire
To fix the Pontiac Sunfire if it jumped time, the timing belt has to be replaced. Then the car has to have the timing set again after the belt is replaced.
Fix It.
To fix a loose vacuum hose on a 2002 GMC Envoy, it can be clamped with a small hose clamp. Use a metal clamp that can be adjusted to fit the small hose.
buy a new one
what i found out was if your vacuum doesn't have suction you need to make sure you have all the air out of the hose that is attached to you vacuum.
1200 $ for a new head and instalation
it seem to be the trunk plastic is broke and I have brought the the part and wont to fix it
ck for vacuum at map sensor hose, if it is vacuum present replace the map sensor.
Can be as high as 'more than the car is worth'!
Call in the pros. I'd take it to a radiator shop.
remove both hoses and replace the o rings