I just wanted to verify that this is a common code pair when the upper intake manifold gasket goes. Is this correct?

 

Nope it's not...
Your P0174 if drivers side bank lean.
And your P0305 is cylinder #5 misfire.

 

Yeah I know what they are. Cylinder 5 is also on the drivers sid.

Could've swarn I just read that..It was about a V6 but I thought it may still apply to my 5.4

 

Normally with an intake gasket you will receive a bank one as well as a bank 2 lean code...

What engine is this? How many miles?

 

Oops 5.4... The 4.2 had a common problem with the intake... Not so much the 5.4...

Do me a favor and check the #5 cylinder injector for proper function... If you don't have a stethoscope try a piece of hose to your ear and listen for a difference or no "click" on the #5 injector then let us know what you got

 

Hmm never heard of that before. I'll give it a whirl tomorrow. I was going to swap a COP from my mustang over and see what happens. The truck has 155k on it

 

Yeah give it a listen and let us know, Talk to ya tomorrow

 

Ok need help !!!!!!!!!!! HAVE CODES ; P0012 CAM POSITION , P2196 O2 SENSOR RICH BANK1 SENSOR1, P0174 SYSTEM TO LEAN P0300-P0304 MISFIRE , P0316 MISFIRE DETECTED 1ST 1000 REVS....... HELP !!!!!! New fuel filter smoothed it out a little no cel flashing just on steady with P2196 code o2 sensor to rich . Is it cam phasers , cops , plugs where do i start ???? Driver's side passenger side aaaaaaahhhhhhhh!!!!!!!! Thanx.

 

Ok you need to start your own thread...

Copy and paste this there also post the year, engine and mileage...

See you there!

 

I forgot to mention that it only seems to be missing under 3k RPMs. If I drop it into 2nd gear and ride around with the RPMs semi-high it seems to run fine.