For the 2016 GC with the 5.7L engine, on page 6684 (use search, it helps) it specifies SPLZFR5C11 plugs, which are copper core. They sell most places for under $7 each. I've seen discussion about using iridium plugs, but the manual does not call for them. Spark plug installation torque for the 5.7 engine is listed at 18.5 to 22 lbs/ft. Neither engine seems prone to head gasket or head failure but it can happen. 2017 Jeep Grand Cherokee Summit 4x4, 5.7 Hemi & 2017 SRT 6.4L & 2020 Trackhawk 6.2L Most of this is true for the Grand Cherokee L, but it differs in the fact that the top three trim levels let you upgrade to a more potent 5.7-liter HEMI V8 engine that makes 357 hp and 390 lb-ft. What engine is in 2013 Jeep Grand Cherokee (WK2) 5.7 V8 HEMI Overland? The 2013 Jeep Grand Cherokee (WK2) 5.7 V8 HEMI Overland has a V 8, Petrol engine with 5654 cm3 / 345 cu-in capacity. How many horsepower (hp) does a 2013 Jeep Grand Cherokee (WK2) 5.7 V8 HEMI Overland have? As the 2004 model year progressed, rumors kept surfacing with some sources saying that Jeep was in fact testing WJs with the 5.7 Hemi engine. What they didn't know at the time was that some of these test "mules" were actually 2005 WK Grand Cherokees, but with modified front sheet metal from 2004 models. This was one of the reasons that some 15 posts · Joined 2020. #1 · Jun 2, 2022. Apparently there is an issue with the 5.7L Hemi engine. Supposedly the valve train is failing on some models. One of the noticeable symptoms is rough idling and a ticking noise. I have felt my 5.7 has a rough idle but I definitely have the ticking noise. Mongo53 said: If you're overfilled on oil, you'll often burn oil. The HEMI has a known problem with coming from the factory with a defective dipstick, that reads oil lower than actual. There is a TSB saying to replace it with the part number ending in "AD". If you change you oil yourself, add 7 quarts like specified and it still shows a quart Chrysler released this machine for the model year 2002 on the Dodge Ram 2500 and 3500 as well as on 2003 models of 1500 model pickup trucks to augment the Magnum 5.9 engine. Chrysler made the HEMI 5.7 available across all 2004 Dodge Durango, Dodge Ram, 2005 Chrysler 300C, Jeep Grand Cherokee, Dodge Magnum R/T, and many more. 2005 jeep grand cherokee 5.7 hemi acceleration problem. First off id like to start of by saying yes my oil is changed, it is the right weight as well with transfer case fluid both mopar. Now to the issue, When I accelerate at about 35 and up it seems as if its losing power, (I had a magnaflow MUFFLER put on) it sounds as if its a light Jeep Grand Cherokee; Year Engine Engine Oil Type Engine Oil Capacity; 2004: 4.0L AMC 242: SAE 10W-30: 5.7L Hemi V8: 5W-20: 7 Qts (6.6 Liters) 3.0 L OM642 V6 CRD IFGK.