Loose Plenum

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Apr 8, 2012 | 10:14 AM

Klturi421

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Joined: Feb 2010

Posts: 124

Loose Plenum

I noticed this morning when looking under the hood, I noticed the bolts holding the plenum down were a little loose so i tightened them down.

Could that cause any problems? Misfire?

Apr 8, 2012 | 10:31 AM

50lb_cat

Super Member

Joined: Mar 2012

Posts: 1,024

From: Iowa

Probably just hurting your throttle response and mpg. It might have been messin up the fuel to air ratio.

Apr 8, 2012 | 10:39 AM

50lb_cat

Super Member

Joined: Mar 2012

Posts: 1,024

From: Iowa

Forgot to say it really depends on how "loose" they were. The torque required isn't very much.

Apr 8, 2012 | 10:43 AM

Klturi421

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Starting Member

Joined: Feb 2010

Posts: 124

I was able to give a full turn, on most, some I was even able to get 2 or 3 full turns before they started to resist a bit.

Apr 8, 2012 | 01:45 PM

chris015

BF Veteran

Joined: Apr 2009

Posts: 3,748

From: South Carolina

you have this blazer very long? Sounds like someone replaced the spider or something to do with the plenum and didnt tighten down the bolts.

Apr 8, 2012 | 10:59 PM

mrkevinmjr

Junior Member

Joined: Apr 2008

Posts: 280

From: I go where my truck takes me...

hmmm u guys got me wnating to double check my work... which screw are we taklin about... the one attached to the rail ?

Apr 9, 2012 | 07:57 AM

Klturi421

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Starting Member

Joined: Feb 2010

Posts: 124

I have had the truck since 05 had a gasket replaced for the lower intake in 09. Have not replaced the spider...yet. I will be doing that job sometime soon.