Thread: mpgs and power back! (throttlebody cleaning)

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  1. #1 Re: mpgs and power back! (throttlebody cleaning) 
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    Quote Originally Posted by SC06GT View Post
    Looks like removing the blower requires removing the fuel rail, correct? Along with some vaccum lines, the rear plug wires ect... I need to change the supercharger oil, assuming that would be best done after this, lol.
    Removing the blower is a few steps...yeah. Fuel rail is four, 10mm nuts. That just pops right out and you can slide it aside to the right hand side of the engine bay after you've un-plugged the sensors around it on the harness and the injector clips. You'll need a 15mm wrench to push the tensioner down to remove the belt. Take apart whatever intake system you've got, unplug the throttle body...then on the back side of the blower you've got a couple worthless brackets with the main o2 plug and the MAP sensor. After all that business is out of the way, you'll need to unbolt the blower itself...be sure to unplug the BBV and any other misc. brackets like the EGR and such so you don't bend/damage stretch anything. It actually is very straight forward and simple. I even think the '04+ blower gasket is metal and re-usable. If not; they're like $10 at the blower parts store listed under the Intake Plenum Gasket. It'll come with the O-Rings and everything you'll need to stab it back on, too.

    Quote Originally Posted by SC06GT View Post
    would be it worth anything to clean the EGR valve? Those damn things are troublesome on aging cars.
    I deleted the EGR on every 3800 I've ever owned. No more carbon build-up, no issues if the valve fails, no chances of hunting a super hard to find vacuum leak via the gold accordion tubing, not to mention it really cleans up the engine bay. Nothing but positives. Some people say you lose gas mileage but I never noticed anything.
    1999 Chevrolet Silverado K1500 Classic Z71 - Intake/Gibson Exhaust/20% Tint
    2004 Chevrolet Corvette MRM A4 - C5Z Suspension/AFE S2 Intake/TSP Catless LT's/3" ORX/C6 ZR1 Wheels
    Sold WBody's: '98 GT, '98 GTP, '03 GTP, '05 GXP
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  2. #2 Re: mpgs and power back! (throttlebody cleaning) 
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    Quote Originally Posted by blueguy91 View Post

    I deleted the EGR on every 3800 I've ever owned. No more carbon build-up, no issues if the valve fails, no chances of hunting a super hard to find vacuum leak via the gold accordion tubing, not to mention it really cleans up the engine bay. Nothing but positives. Some people say you lose gas mileage but I never noticed anything.
    dumb question. how do you delete it? block off plates? does this make the car not pass smog? I'm in CA (FML)....
    Daniel - Code name ILMODC (il-maude)
    Current ride: 2000 GT, 1998 GTP (wifes) -
    Work in Progress: 1987 Trans Am – KnightHawk Edition (5.3 LSSwap)
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