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Author Topic: dumb spark plug question  (Read 2994 times)

Offline lawdog49

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dumb spark plug question
« on: September 23, 2008, 10:53:54 am »
ok, i feel stupid for asking- but changing plugs on my 91 Burb, I couldn't seem to get the socket onto the plug right underneath the dipstick tube.  i was fed up by this point with a few plugs giving me fits to get out cause they seemed to have seized up in there, but still i couldn't get the socket in there for that one plug.  now, the truck runs/idles terrible- don't know if this one cylinder is firing so poorly now that the others are changed or what.  have a new set of wires to put on this weekend too.  anybody have an idea how to get that plug out?
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1991 GMC Suburban 1500   -   5.7/AT/4x4/TBI

Online VileZambonie

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Re: dumb spark plug question
« Reply #1 on: September 23, 2008, 12:15:41 pm »
Is there crud built up around the plug? Try spraying it down with penetrating oil and using a pick tool to scrape around the plug. then blow it off with compressed air so you don't get any crap in the cylinder.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Thermal Izod

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Re: dumb spark plug question
« Reply #2 on: September 23, 2008, 12:22:14 pm »
the only dumb question is the one never asked.
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1982 Shortbed K10 Silverado.  305 ci with a mild cam, full true dual exhaust (Long tube headers, "H" pipe, and Thrush Turbo mufflers.  4x4, and otherwise completely stock.  about 153,000 miles.

Offline lawdog49

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Re: dumb spark plug question
« Reply #3 on: September 23, 2008, 01:10:15 pm »
i did spray em, it doesn't seem like crud, it seems like the dipstick tube is getting in the way- from what i can 'feel'- can't really see without getting upside down in the engine bay!
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1991 GMC Suburban 1500   -   5.7/AT/4x4/TBI

Offline ccz145a

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Re: dumb spark plug question
« Reply #4 on: September 23, 2008, 01:12:07 pm »
loosen the tube.
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1975 C10 Silverado LWB, 454CID, TH400, 10bolt 3.42
11MPG Downhill w/tailwind (but there ain't no hills here)

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Re: dumb spark plug question
« Reply #5 on: September 23, 2008, 02:27:06 pm »
use an inspection mirror. The dipstick tube shouldn't be in the way.
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,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10
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