Dodge Ram 1500 Sport 5.7 Hemi Spark Plugs Diagram

All this power requires a noticeable part with.

The rebirth of the legendary HEMI^® V8 engine in 2004 proved to be a wise business decision by Chrysler Group LLC. Because HEMI (engine) isn't just a high-performance pick for street racers; information technology has become a staple of the FCA US LLC powerplant card. Patc commonly plant in the popular Dodge Competitor and Charger, this legend also feels right at home in such vehicles equally Jeep_® Important Cherokee and Dodge Victoria de Durango.

Throughout the years, the HEMI V8 engine has been produced in several diverse variatios of displacement and power. First, there was the 5.7L HEMI V8 engine that started the all-new HEMI engine gyration in 2004. This version is still the base HEMI railway locomotive today. The next year, the 6.1L SRT^® was introduced, delivery a higher level of performance. That variant was built until 2010. In 2011, the SRT translation was increased to 6.4L. It cadaver for the 2019 model year. Most fresh, the 6.2L supercharged HEMI V8 engine was introduced in 2015.

Sparking plug Sustentation

Before the years of emission controls, lead-free petrol and clean painful engines, spark plug upkee (cleanup, gap checking and replacement) was a commons practice. Spark plugs would get over filthy over a comparatively telescoped period of clip (~15,000 miles) from the lead in gasoline and the carbon from incomplete combustion. In addition, the center electrode would burn absent, increasing the plug gap. Failure to keep spark plugs clean would contribute to performance and starting problems. Plug maintenance was a serious matter.

Simply, every bit engine control technology progressed, spark plugs remained cleaner for thirster periods of time, reducing maintenance tasks and extending service liveliness. Everyone was amazed when the replacement oscillation became 30,000 miles or 60,000 miles, or the unthinkable 100,000 miles! And, when the plugs were eventually replaced, the plugs were much strip but with burned electrodes. The tempered electrodes would event in excessively wide-cut plug gaps that would case performance problems.

With the HEMI V8 railway locomotive, activate plug replacement requirements are based connected mannikin year and supplanting. The first HEMI engine, the 5.7L, required replacement every 30,000 miles. This interval for this locomotive engine continuing until 2014. In this model year, the replacement interval was outstretched to 100,000 miles. The first SRT8^® engine, the 6.1L HEMI V8 railway locomotive, and its successor, the 6.4L locomotive engine, postulate spark plug replacement at 96,000 miles. The 6.2L powered HEMI V8 engine on the other hand has a 60,000-geographical mile serve life for its spark plugs.

SPARK Punch Designation

From a maintenance standpoint, it's probatory to know which HEMI V8 engine is in the vehicle being serviced. Not only are the service intervals for replacement different, but not all HEMI engines use the same electric arc cud. That's an important point because some are a orthodox draw design and or s are tapered thread (see Figure 1). These two divergent designs are not interchangeable. Installation, or kind of trying to install, the untimely elan spark plug can damage the spark plug and, quite a possibly, the draw in the cylinder header.

The 5.7L sparkle plug is a conventional design with straight person threads. IT's also nickel-plated. The 6.4L SRT engine sparking plug has narrow threads and has a platinum resistance design. The resistance values range from 3,500 to 20,000 ohms when patterned with at least a 1,000-volt examiner. Do not use an ohmmeter to go over spark plug resistance arsenic an inaccurate reading testament result.

REPLACING THE SPARK PLUG

There are cardinal spark plugs per piston chamber in a HEMI V8 engine. So, when the plugs need replacement, there are 16 to change, not eight. Also, it should comprise noted that all HEMI V8 engines use coil-on-stop up ignition systems. Totally except the 2004-2005 engines, that is. Let's look at that system in much Thomas More detail as replacing spark plugs on this design is different than the procedure for coil-on-plug.

The early 5.7L HEMI V8 engines are equipped with eight separate and independent ignition coils. The one-piece coil bolts directly to the cylinder head cover. It attaches the secondary output terminal straight to the sparking plug using a rubber boot cachet. Each coil has a second output concluding. The second terminal connects a formulaic flicker plug cablegram to a spark plug on the opposite word piston chamber bank. A separate primary electrical connector is used for each coil.

The electric discharge secure cables that connect the coil to the spark plug connected the opposite cylinder bank are placed and routed in a unscheduled plastic loom to keep the cables separated. The tower is clipped to the intake manifold. To forbid a mismatch of cables, a corresponding spark plug/coil act is displayed on each spark plug cable. These numbers game are situated on the top of the ingestion manifold to the perpendicular of the throttle personify.

Now, let's recap the procedures to replace the spark plugs on the 2004-2005 5.7L HEMI engine … eight of the 16 spark plugs are located under an ignition coil, those coils wish cause to be removed. Before removing or disconnecting any spark plug cables, note the daring position of the cables. Remove the cables one at a time. Spray shut air into the cylinder head initiatory for each plug. This will prevent dirt from entering the burning bedchamber. Remove the spark plug.

Watch the sparking plug break on the new plug (see Figure 2). Be sure the col meets specification. Exceptional care should be taken when installation the new spark plugs into the cylinder lead spark male plug wells. Start the sparking plug threading into the cylinder head by hand to avoid cross threading. To economic aid installation, fit a piece of gum elastic hose to the new plug. These plugs are a torque-critical design, so do not exceed 15 ft.-lbs. of torsion when tightening the plugs.

Set u the spark stopple cables. Apply dielectric grease inside the boots to aid installation. To prevent ignition crossfire, the plug cables must embody placed in the routing brood in the primary positions. Install the ignition coils to end the installation.

For every last HEMI V8 engines built after 2005, spark plug replacement is a bit more straightforward. As mentioned, these engines are well-appointed with roll-along-cud ignition systems. Prototypic, remove the engine cover. Past, disconnect the ignition coil wire harness connection. Remove the two ignition coil bolts, and then, with a slight rocking motion, remove the coil (the rubber boots are intact with the coil).

Install the new discharge plugs. Start the spark plug threading into the piston chamber head away hand to avoid cross threading. To economic aid installation, fit a small-arm of rubber hose to the new plug. Tighten the touch of plugs to the puritanical torque:

5.7L locomotive – 18.5 to 22 ft.-lbs.

6.4L engine – 7.5 to 15 ft.-lbs. (brawl not pass 15 ft.-lbs.)

Instal the ignition coil. Duplicate in the same way for the other sevener cylinders. Install the engine cover.

Note: Always fasten light plugs to the specified torque; excessive or insufficient torque will grounds damage to the cylinder head OR spark plug.

Source: https://www.dodgegarage.com/news/article/how-to/2019/03/sparks-and-recreation.html%7D

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