Went to change my air filter & noticed something I am unfamiliar with. 5 lines going into the air cleaner. So tell me what all of these are for/go to.

Large tube =Valve cover breather
Large tube2 =?
Medium tube =?
Small tube =?
Small tube2 =?

Was hoping to change out the air cleaner but now I don't know.

 

go to autozones website and look at the vacumm diagrams for your truck. I just took a peak and they had a bunch of em,i just was not sure which one you had.

 

i have the diagram be glad to help i just fixed my 83 2.8 v6

 

What a mess of vacuum lines! I don't miss vacuum systems of the 80s. I replaced a head gasket on my '84 LeSabre. It was an endless tangle of vacuum lines. It took me months to get it all sorted out and hooked up properly.

 

+1! The only other vehicles that were not FI I have owned was from the 60s & 70s. The 100+ miles of vacuum lines on this things makes me cringe whenever I want to do anything under the hood.