Want to sea foam my 2002 Chevy 2500hd 6.0 what vacuum hose do I use
The 2004 GMC Envoy air conditioner vacuum hose diagram can be obtained from most Chevrolet dealerships. The diagram can also be found at most auto-parts stores.
yes
Sounds like you have a vacuum leak - -bad or loose hose or defective diaphragm in one of the vacuum motors
every where
contact helms.com
On a 2002 GMC Yukon, the vacuum hose is typically located near the engine, often connected to the intake manifold or vacuum reservoir. You can usually find it running along the engine bay, often near the brake booster or the throttle body. It's important to check for any loose or damaged hoses, as they can affect engine performance. If you're troubleshooting, inspecting the driver's side of the engine compartment is a good starting point.
No vacuum hoses on newer Honda transmissions.
any petcocks on the throttle body or intake are vacuum lines excluding fuel lines
The best way to repair a vacuum hose on your Chevrolet is to replace the vacuum hose. The vacuum hose is held in place with a retaining clamp on each end of the hose.
Could be a number of reasons, rot, damage, vibration may have made it come loose.
A vacuum hose diagram can be found in a service manual, possibly available at your local library for check out. You can also buy the manual at most any auto parts.