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Pull the spark plugs not the wires but the plugs themself make sure they are gapped right to your car and they are not wet in any way you might be getting spark but if they are wet you mise well forget it and just buy new plugs they are like 2 dollars a peice
Expect spark-plug work to be tedious. If this is your
first time, plan 3 or 4 hours after engine cools (or 1 hour on several
days), allowing 15 minutes per plug. It is harder than changing air filters, fixing flat tires, or starting a mower.
Consult your vehicle's manual. Look up where your
spark plugs are, how many you have, the correct "gap", and the size
socket needed to remove them. Also write down the vehicle's make, model,
and year. The gap can also be found on the emissions label under the
Visit your local auto parts store.
Find (either by looking up in the provided reference book or by asking
an employee) the correct spark plugs for your vehicle. The store also
has socket wrenches, plus spark-plug sockets (with gasket), and
socket-extension rods or swivel-joints to reach recessed plugs.
Find out (from the reference book, the packaging, or the employee) if these spark plugs need to be "gapped".
Some modern plugs should not be gapped (but others can have different
gaps, depending on use in either 6-cylinder or V-8 engines, etc.).
Park vehicle, turn off the engine, and open the engine compartment, to cool for hours.
(WARNING: After running a car for a long time, the spark plugs can be
the hottest part of engine! While it can require several hours to cool
enough, it can require several weeks to heal burnt skin.) Especially
with aluminum-head engines, let cool to room temperature to reduce the
probability of damaging the threads.
Take (if needed) a wire-gauge spark plug gap tool and adjust the distance between the two electrodes.
Between the electrodes is where a spark is made. One electrode will be
an L-shaped piece of metal (hook), the other a metal prong centered
directly across from it. Set the gap between the two electrodes, from
.028-.060 inch, such as .035/.040 /.043 /.050, as in book (see Tips
Collect tools & new plugs (perhaps in a tool-tray). Remember which direction the socket-wrench switches to reverse/unscrew: wrench might not be visible when working back plugs.
Check fit of new plugs inside wrench-socket gasket.
If new plugs stick to rubber gasket, consider removing gasket with
screwdriver in square hole, to just use tape. Like taping screws to a
screwdriver, the socket can be taped to spark plugs (not the threads)
with scotch tape, for easy release once inside the engine. Otherwise,
have pliers to pry the socket off new plugs once installed.
Locate (with the help of your manual or a repair manual for your vehicle) the distributor spark-plug cables/wires.
The number of wires will be equal to the number of spark plugs your
engine has. Often these wires are red or black, and will be equally
divided on opposite sides of the engine.
Using masking tape, mark each of these wires for where they connect.
Don't rely on memory: if interrupted, easy to forget, and engine can
run rough with crossed plug wires. For 8 cylinders, deducing plug
connections is almost impossible (120 choices for 5 wires) -- in that
case you must contact an expert or study wiring guides.
Remove each spark-plug cable, pulling the caps (to avoid breaking cable wires). Caps should come loose by very intense twisting/pulling (avoid jerking/hitting fingers).
Using compressed air, pressurized engine cleaner, or a brush, clean all debris from around the plug.
Using a spark-plug socket, remove each plug from the engine, and replace each with a new spark plug. Don't over tighten (usually just 1/16 turn, after finger-tight).
Replace the spark-plug cables on the same plugs they originally came from, and remove the masking tape.
Remove tools near engine (beware the moving belts), close your engine compartment, and start your vehicle.
buy new plugs
set the gap on the new plugs
Label the plug wires (1-4)
pop the rummer cap where it goes into the cylinder head valve cover and remove the spark plug wire by grasping the shaft ot the spark wire and twisting it. Don't just pull on the wire as you can break it.
Cpat the threads on the spark plug with anti seize compund.
screw in the spark plug carefully so you don't cross thread it. Check a repair manual for torque specs; if you don't have a torque wrench, you want the spark plugs snug but not cranked down with all your strength.
Replace the spark plug wire and this is important, don't mix what wire goes where..
It can be a bad spark plug, plug wire, burnt valve, blown head gasket, or worn piston rings. Replace the spark plugs and plug wires and see if the miss goes away. If it does not then have a compression test run on the engine. In addition if you are loosing coolant with no apparent leak, and you see white smoke coming from the exhaust you may have a blown head gasket which will cause a miss.
This is All you need for this Repair, ALSO Be Sure ALL GASKET SURFACES ARE VERY CLEAN. This Engine Requires MORE than MOST ALL Engines do for this Repair.
To remove a valve rocker arm cover from the RH cylinder head, disconnect PCV closure tube from oil fill stand pipe at rocker cover.
Remove the Thermactor bypass valve and air supply hoses as necessary to provide clearance.
Disconnect the spark plug wires from the spark plugs using Spark Plug Wire Remover T74P-6666-A or equivalent. Do not pull on wire. Remove the wires and bracket assembly from the rocker arm cover attaching stud and position the wires out of the way. ALSO MARK THEM AS TO WHERE THEY CAME FROM !!!
Remove upper intake manifold.
Remove attaching bolts and remove the cover.
Clean the valve rocker arm cover(s) and the cylinder head gasket surface(s). Position a new service valve rocker cover gasket.
Position the cover(s) on the cylinder head(s). The cover is tightened in two steps. Tighten the bolts to 14-18 N.m (10-13 lb-ft). Two minutes later, tighten the bolts to the same specification.
Install the crankcase ventilation tube in the RH cover.
Install upper intake manifold.
Install the spark plug wires and bracket assembly on the rocker arm cover attaching stud. Connect the spark plug wires. Install the air intake duct assembly.
Install the Thermactor bypass valve and air supply hoses (if required).
no, not a blown headgasket, remove the valve cover and inspect the spark plug hole seals(tube seals in the valve cover) replace if brittle and old. also change the valve cover gasket since u have it off...adjust the valves as well