Humm well if it was a series 2 it should have 2 elbows...one is pressed into the fron of the tensioner and one in the back....for sure mine has 2 and every series 2 I have seen has 2...
look in back almost under the ps pump...

I know one thing I just chgd the plugs in this yesterday and its a PITA....my Park Ave was easy this one I had to do the back 3 under the car..my hands are all cut up...its got 79k on it but I wanted to chg the plugs while I could still get them out...

I dont think my UIM is leaking YET but thought I would do it before it does...My Park Ave went 247k miles and I did 2 upper intakes but never the lower gaskets...My Bonneville went 245k and I never did those either...

i had the upper replaced at about 50 or 60 because i was on the road and the wife needed the car. then a couple months ago i saw it leaking by the rear of the throttle body, so i figured i would do everything because now the car has about 180. the lower i bought because i wanted to take off the lower intake to do the plugs. but you cant see how bad the lower gasket is until you have the manifold off. so im glad i had it.

humm well if your is a series 2 it has two, at least ANY series 2 I have seen had two...my 99 and 2000 both have two

Do you guys know the torque spec and sequence for the UIM bolts ?

Also should I use the 180 deg tstat or the hotter one...I assume I should chg the tstat

Torque stuff can be found way down in this thread...

https://www.gmforum.com/mechanical-1...ts-l36-297702/

In the summer time, I say run the 180, winter time, keep the 195.

you may think you have two but one is part of the tensioner

as far as the thermostat there is no reason to run the lower temp one on a stock vehicle.

Its a dual purpose kit. 1 elbow is for the L36'*, and the other elbow is for the L67'*. Use one, throw the other away.

humm me thinks you are wrong They both come out you do NOT throw one away,,,they are both pressed in plastic elbows,,,check out youtube there is a video of a guy changing both,,,they both come out the same way...one * in the back one in the front...where is Bill or one of the other gearheads on this , i know im correct

heres your proof....I know you are trying to help and I DO appreciate it but please be carefull when giving out advise...do NOT throw the elbow away..Thank you again