chewie7968

CAN SOMEONE TELL ME WHERE I CAN FIND A DIAGRAM OF THE VACUME LINES ON MY 99 LS1 T A.I NEED TO FIND OUT THE PART I NEED.THE LINE COMES OFF THE INTAKE BEHIND THE THROTTLE BODY BELOW THE EGR LINE.CAN ANYONE HELP?

ACW

I can probably find what you're asking about, but haven't been able to figure it out from what you've said so far... could you be more specific about what this line is for and what it connects to?

chewie7968

IT CONNECTS BEHIND THE THROTTLE BODY THEN RUNS DOWN THE PASSENGER SIDE OF THE ENGINE BETWEEN THE VALVE COVER AND INTAKE.IT HAS A LEAK THAT CAUSES ROUGH IDLE + HESITATION AND CAUSES THE CAR TO DIE WHEN IT IDLES FOR 5-10 MINUTES.I HAVE TAPED IT UP FOR NOW BUT I NEED TO REPLACE IT ASAP.

ACW

Aha, sounds like this is it

Tube, PCV (From Right Side Rocker Arm Cover (Valve Cover) Connector To Throttle Body)
1999-2002 LS1 - part number 12556454

Can be ordered from GM parts dealers such as our sponsor SDPC: http://www.sdpc2000.com/search.asp?s...6454&doquery=1

chewie7968

I DONT SEE WHERE IT CONNECTS IT RUNS UNDER THE DASH TO THE FIREWALL ONTHE PASSENGER SIDE.ARE YOU SURE.IT IS A RUBBER HOSE.A DIAGRAM WOULD HELP ME.

ACW

I'm not completely sure, and unfortunately I haven't found any helpful diagrams or photos of that area. Hopefully someone else will come along with something more concrete to contribute

Danny2tek

iTrader: (1)

sounds like the PCV to me