Thread: Vacuum Hose diameter & lengths

Does anyone happen to know the Vacuum Hose diameter & lengths for a 2004 GTP? I'm going to inspect all of my vacuum lines and I figured if I'm going to need to replace any I'd order some higher quality silicone hoses since they don't cost very much. This would be much easier if someone has the numbers handy instead of taking each off to measure inside diameter and length (especially since that could damage a hose that is currently working). Thanks for the help!!

ZZPerformance - Vacuum Line Kit #ZZ-VACLK-38

I saw that on the ZZP site, but is it really just one diameter? that seems a little strange

Does anyone know if there is a difference in diameter & length of the vacuum hoses between a 1998-2003 vs. 2004+? I see vacuum hose kits for the lower year models but not for 2004+ so was wondering if it would work the same. They are pre-cut and all though so would have to be the same length & diameter.

If u wanted local auto parts stores carry vacuum lines in stock. If u ask they'll let u step out of the store with an item so u can see if their the same

I replaced the vacuum hoses coming off of the SC Bypass Actuator. This is the one between the Bypass Actuator and the Bypass Solenoid, and I also replaced the one from the Bypass Actuator to the top of the engine where the brake booster hose is also connected. The brake booster hose is fine and the rest seem to be holding up well. I just did it at Advance Auto Parts with a vacuum hose line I happened to have for patching washerfluid hose. Was the right fit. I just figured if someone knew the rest of the diam & lengths I could order new red silicone ones for the entire engine.

I'm surprised either no one knows about this, or just no one cares about it at all to comment.

I just rip it off the car, hold it up to hose in the store, buy 4ft of it, cut to match, and shove it in. It's not rocket surgery.

Rocket science...lol surgery.

97 has an additional tree and evap piece the others don't.
98-03 have fuel pressure regulator which 04+ don't have
Beyond that.. it's all the same basic sizes.
3/8", 1/4 and something small.

I replaced the two medium sized ones on the top of the engine, the two on the sides (the small ones front & back of engine with the 'T' seem fine. The Brake Booster Vacuum Hose seems fine too but I'm gonna do the carb spray test on all of them soon.