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Chrysler Master
364 Answers
- Posted on Jul 21, 2008
Re: I AM TRYING TO TUNE UP MY GIRLFRIENDS 2005 2.4 TURBO...
- Gap at or close to .50” if there is no misfire, hesitation, etc., and you want to get a trifle extra gas mileage. A safe middle ground may be .45” if there is misfiring at that gap. If you plan to modify your turbo engine, iridiums can be gapped down to .32” and other plugs can go down to .40-.45”. (Chrysler now specifies .40”)
- Remove the cover on the engine.
- Remove the five bolts connecting the top two halves of the intake manifold where the dipstick is (five 8mm socket).
- Remove the EGR tube (one 8mm socket, other is 13mm socket).
- Remove the air hose from the air box at the throttle body with a flat tip screw driver and one more 13mm bolt underneath the throttle body opening.
- Rotate the top intake manifold up, block it up with a board if you want to keep it out of the way, but be cautious, there is an extention tube on the EGR tube in the back of the top manifold so the manifold needs to come forward to prevent gasket damage(light blue in color, actually a flat one and another fitted O-ring with ridges, be careful. Several hard and soft vacuum hoses and wires/sensors, no problems gently moving them around.
- Twist, then pull the plug wire boots and use a deep 5/8 inch plug socket with three inch minimum extension and rubber gripper to pull the plugs (or long needle nose pliers to retract the old plugs after unscrewed).
- Use anti-seize on the threads, and if the plug wires are over three years old or 60,000 (maintenance interval?) miles old, replace the wires as they tend to get pinhole leaks to short against the tubes they sit in.
- Before reinstalling upper intake, wipe excess oil in the intake out with a rag, remove the four burnt umber rubber gaskets.
- Clean (I like Dawn dishwashing liquid, cuts the oil and grease really nicely), rinse and dry them and reinstall in reverse order of removal.
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