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  1. #1
    Sr. Engineer ahm1127's Avatar
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    Default Failed inspection

    I have 1990 Suburban & failed inspection due to bad donut gasket at exhaust manifold. Problem is, previous owner has welded studs to everything when they installed new Y-pipe.
    Should I: 1) break bolts, drill & re-tap 2) replace exhaust manifold 3) buy headers
    I dont want to spend to much $$ but winter is on the way & time is limited. Thanks
    Everyday I wake up is a great day! ;-)
    05' Chevy Suburban, 11' Ford Fiesta

  2. #2
    Legend

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    Default

    you could just cut the welded area out and put in a heavy duty flex tube, just to take out the hassle of retapping and welding.
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual
    285/75/16
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    Jason

  3. #3
    Sr. Engineer ahm1127's Avatar
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    Default

    Thanks Jason,
    I am in process of removing existing exhaust manifolds due to welded in bolts/studs. They are welded to manifold not Y-pipe. I purchased Headman headers to replace manifold.
    Passenger side not a problem but drivers side is a pain! Are there any tricks to remove alternator/power steering pump brackets from engine?
    Thanks,
    Aaron

  4. #4
    Sr. Engineer ahm1127's Avatar
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    Default

    OK, I removed both exhaust manifolds. I had to cut all bolts to Y-pipe to remove due to rust & somebody welding. Trying to remove cut bolts from driver side (1 done) but passenger side is cracked and someone tried to weld (replacing with NAPA manifold). Not sure if I will replace cat but will be replacing muffler. Wanted headers but to expensive.

  5. #5
    Sr. Engineer ahm1127's Avatar
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    One manifold in place, I hope to have all exhaust in by this Thursday to Cat. I think Cat is clogged but will check when truck is up & running, wasnt very loud with no muffler!
    I need a new muffler that flows but not to loud due to offroading. Looking at Turbo mufflers but not sure. Any suggestions appreciated.

  6. #6

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    Gut the Cat and put it back on. This way you wont fail again

  7. #7
    Sr. Engineer ahm1127's Avatar
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    I think I will be, hopefully today. Weather has been working against me.

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