Intake Gaskets

[TogaPC]

Hey guys,

I got a code last week about my knock sensors not working so I undertook the task of replacing them myself. Of course in the process I replaced my intake manifold gaskets. I have to say, it improved my performance noticeably. The gaskets were flattened out quite a bit and there was a lot of buildup on the intake and heads which I scraped off. I used the Fel-Pro Perma-dry Plus gaskets and I must say they are really nice. They have a metal bracket that holds the gaskets in place and it hangs on 2 of the head studs so you can mount the intake easily. Also replace the throttle body gasket and re-wired the knock sensor harness since everyone seems to have problems with it eventually.

Only down side to the whole operation is that I had to buy a torque wrench that does in/lbs. I looked all over town for one I could rent or buy cheap but the only place that had one that would work for the intake bolts was at Sears for $80. So if anyone in the Austin, TX area needs an in/lbs torque wrench let me know...I'll be glad to loan it to you.

Overall, i'd say the difficulty of the job was about a 7 but definitely worth it since a mechanic bills out the labor at $90 an hour and that job is 2.7 hours plus parts.

 

[JKmotorsports]

Cool. Always makes you feel better when you can do the job yourself and everything works out, not to mention the money you save.
Too bad you didn't post about needing a tq wrench; I have both a small in/lb and larger ft/ld wrench you could have borrowed

 

[clean454]

i helped with knock sensors on a denali not a super hard job but totally worth doing ur self!

 

[Volant1]

I have to do mine as well ive been putting it off for some time, I heard the hole they sit in tends to fill with water, did yours look like they were?

 

[TogaPC]

I have to do mine as well ive been putting it off for some time, I heard the hole they sit in tends to fill with water, did yours look like they were?

The back one smelled like a sewer but the front recess seemed fine. I don't offroad but I do like to keep my engine bay clean. Guess that's what I get.

When i checked the wiring harness, I found that the rear sensor wire had a huge amount of resistance so maybe that was the real issue. Either way it's a crappy design on GM's part.

---------- Post added at 04:43 PM ---------- Previous post was at 04:42 PM ----------

i helped with knock sensors on a denali not a super hard job but totally worth doing ur self!

Agreed

---------- Post added at 04:45 PM ---------- Previous post was at 04:43 PM ----------

Cool. Always makes you feel better when you can do the job yourself and everything works out, not to mention the money you save.
Too bad you didn't post about needing a tq wrench; I have both a small in/lb and larger ft/ld wrench you could have borrowed

So there are 2 people in ATX with an in/lbs torque wrench.... Oh well. I guess I'll fine a use for it at some point before I die. Thanks for the offer though.