P0171 Code-Service Engine Soon Questions

[Jvs]

I have had an intermittent P0171 code on my 2000 Silverado 1500 with the 5.3 The truck does have a Spectre cold air intake.

 

I had this code a week or so ago and it has been intermittently on and off the last few days.

 

I have cleaned my maf and cleaned most of the throttle body. I also made sure all intake connections were right.

 

Anyone got any thoughts before I take it in?

 

 

 

Thanks!

 

Jeff

[Jvs]

I couldn't figure out the issue and took the truck in.

 

Ended up being a bad intake maifokd gasket. Mechanic showed Me air fuel ratios changing when he sprayed the intake.

 

Hope it's not too hard to do.

[00Silverado4x4]

From what I've read up on the job, the intake gasket isn't hard to do just time consuming with all the fuel system and electrical that has to be removed.

[Jvs]

Yeah that's what it sounds like.

 

 

 

Looks like we will be picking up some beer and parts and get cracking on it in the next week or two! Lol

[00Silverado4x4]

Yeah man, glad you are mechanically inclined so you can take care of this yourself. I personally haven't done it on a vortec engine but from what I've read and watched on video it doesn't look very difficult at all. Depending on the condition of your engine you may want to go ahead and pick up a set of valve cover gaskets too. You're already in the engine may as well clean out the valve covers. Oh and clean your throttle body real good. The gasket for that is reusable so the most you may need there is some carb/choke cleaner for that.

[rdnkcpa]

I had to do the intake on my 5.3 when I replaced heads a few years ago. The job is not bad at all. Make sure you have a good torque wrench and torque the bolts in the proper order.

[Jvs]

Do I have to go much deeper to do the valve cover gasket?

 

I will definitely be doing a full throttle body cleaning

[00Silverado4x4]

Not really, just removing the coil packs (they're mounted to a bracket for easy removal.) Then just the valve cover bolts and remove. It's actually pretty simple to do.

[Jvs]

Awesome I'll look Into that! Thanks.

[00Silverado4x4]

Your welcome. Let us know how everything goes when you're all done.

[Jvs]

Will do! First things first I'm gonna put my stock cold air intake back on and cross my fingers that it fixes it.