Drivers Side TB Hose???
02-19-2009, 11:53 PM
#1
Drivers Side TB Hose??? ignore the title i meant passenger side 
What is the hose that runs from the passenger side of the TB to the valvecover? I think its cracked because my engine is running horribly at idle.
UPDATE: Found out the name. Its the CCV hose. explains the problems im experiencing
What is the hose that runs from the passenger side of the TB to the valvecover? I think its cracked because my engine is running horribly at idle.UPDATE: Found out the name. Its the CCV hose. explains the problems im experiencing
Last edited by hitmanws6; 02-20-2009 at 01:49 AM.
02-19-2009, 11:55 PM
#2
Theres also a crank case pressure vent line. If there's a build-up of pressure it'll vent back to the intake that way, also oil goes back into the intake that way too.
Take pics if you can.
02-20-2009, 12:04 AM
#5
but i didnt touch the vaccum line at all. i messed up the pressure line and had to use a connector to make it fit. i did notice the oil pressure fluctuating a lot so i think the line is the problem. also idle sounded way different, like it wanted to cut out
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02-20-2009, 12:21 AM
#8
the big hose in the top of the pic
http://shbox.com/1/tps.jpg
http://shbox.com/1/tps.jpg
Maybe an "air pump", which is used only at start-up, if its like the 1998+ LSx's.
02-20-2009, 08:14 PM
#12
That is the fresh air line for the crankcase, it allows air into the crankcase which is then drawn out through the PCV valve on the driver's side of the intake manifold. If it has any cracks in it it must be replaced, as it causes a vacuum leak, which can cause a rough idle as well as other problems.
