funkymonkey. I have a 2011 GC Overland with 5.7L and tow package. I recently flushed the cooling system, changed upper and lower radiator hoses, replaced 203 degree thermostat with new 203 degree, new 18 lb radiator cap, and refilled with Mopar coolant. Engine temp has been consistent (before and after). Blueflame1979. 118 posts 路 Joined 2011. #6 路 Jan 15, 2012 (Edited) If it makes you feel better the service electrical brakes comes on and off in my vehicle all.the time. It doesn't stay on, nor does it throw any codes. I spoke to a mechanic about it, who owns a Jeep and says that it's common for Jeeps to throw this code when you have erratic Help! 2007 Gr Cherokee Stalling. My 2007 Gr Cherokee Limited (5.7 Hemi 145k miles) has been stalling. It does it when driving and temp, weather, speed, etc have no effect on when it stalls. It has stalled at idle, too. Took it to the dealer and have replaced the starter, PCM, spark plugs, had a throttle service done and it is still stalling out. WK2 -Trouble Shooting/Problems/Service 2014 Jeep Grand Cherokee Summit 5.7 Hemi ~ AFe Pro 5R Dry Air Intake ~ HemiFever 91 Octane Tune. Save Share. Reply Quote Like.
11K views 12 replies 8 participants last post by jeepgcoman Mar 1, 2023. jeepgcoman Discussion starter. 2325 posts 路 Joined 2009. #1 路 Sep 26, 2010. Quite a few of the 5.7 Hemi WK owners have experienced problems with the EGR system. Symptoms are, at a minimum, erratic idle, low speed surging, and poor performance and fuel economy.
Also, not to scare you but, you may also want to search this forum and the internet for, "early Hemi dropped valve seat problem". This will enlighten you on the slight possibility of this happening. If you compare the number of early (05-06 and a few 07's) 5.7's built vs. the number that have dropped valve seats, the percentage is not really 2012 Grand Cherokee 5.7 Hemi. In Feb 2022 My jeep was running rough, I had Check Engine Lgt, Lightening Bold and a bunch of codes, most relating to Throttle Body and Acc Pedal. Sometimes I would lose power while driving, But I could pull over and wait a couple of minutes, then start back up and drive normal. Sometimes it would not start until 9. 9496ZJs Discussion starter. 571 posts 路 Joined 2010. #1 路 Aug 6, 2018. Received a letter today from FCA that they are extending the warranty on the water pump from the 5 year/100k miles out to 7/unlimited miles. I have a 2016 Overland with 5.7L Hemi. Says it covers some 2013-2017 JGC and Dodge Durango鈥檚. 2005 Jeep Grand Cherokee has power but wont start I have had a similar issue with my wife's Jeep. It turns over and over but will not fire. This is the 5.7L V8 Hemi. After a bit of time it will start but a week ago it would not so I brought it to my mechanic. He did a full diagnostic on it and it gave him codes for the ECU. 4798 posts 路 Joined 2018. #6 路 May 28, 2018 (Edited) The P0128 codes means the engine isn't warming up fast enough. Its for emissions, because a cold engine makes more pollution than a fully warmed up engine. Sure, logically an engine not warming up fast enough could be a thermostat.
I changed the valve body, and the errors still came up --- then knew it was the pcm. Changed the pcm, and no more problems. If it is the pcm, you can get one as a plug n play (already coded) from 2005 Jeep Grand Cherokee PCM ECM ECU Engine Computer for less than $200. Another thing to check is the black connector from the accelerator cable
15 posts 路 Joined 2012. #5 路 Aug 9, 2015. A '05 WK 5.7 with 70,000+ miles is quite a find. My 2010 had a similar problem until I installed an oil catch can, cost $98 bucks. Under heavy acceleration, the hemi sucks oil and the stock emission system forces it into engine through the throttle body.
Status of the 5.7 & 6.4 Hemi Valve Train Defect Class Action Litigation. This is an active class action lawsuit. This suit has been brought on behalf of the Plaintiffs and a class of current and former Chrysler, Dodge, Jeep and RAM vehicle owners. Petro et al. v. FCA US LLC, case number 1:22-cv-00621, was filed in the United States District Good morning: About two years ago I purchased a used 2005 Jeep Grand Cherokee (Limited, with 5.7 liter V8 hemi engine). In recent months I had the transmission and the engine replaced. The new engine has occasional misfire issues, causing it to "buck", usually when I'm on the freeway driving between 40 and 50 mph, on a slight uphill (entering a KwMC.
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