Yesterday - I started my truck and it ran terrible.
wouldn’t idle , ran very rough.
checked it for codes - p0174 p0172 - one bank lean and one bank rich .
I talked to a friend of mine and he asked me if the brakes felt stiff,they do.
he advised me the vacuum line to the brake booster is the problem. That would explain the one bank rich other lean.
question is:
how do I get back behind the intake ? The metal line feels loose - like it’s not connected to anything.

anyone have any suggestions ?

 

Maybe you can use a mirrow and flashlight.