2011 Jeep Grand Cherokee: misfire or rough idle

Filed Nov 13, 2025 · Electrical, Engine · IN

My check light is blinking and then it stop says I have a random misfire and I done replaced coils spark plugs fuel injectors and I done paid ppl to look at it they none really know what's wrong and I have from my crankshaft sensor all the way up to my cylinder 2 rewired bc my crank wouldn't let my car start got that fixed and I stil have the issue and it just has the misfire and dont know where its coming from..

Filed Oct 11, 2024 · Engine · OR

Check engine light flashing! Engine misfire and valve grinding a groove in the cam shaft from cylinder #8. There is a service bulletin issued but no recall or warranty coverage for repair and replacement! They know that they have a problem but don’t want to pay for a recall to repair it! I still have all of the parts from the repair!

Filed May 16, 2022 · Engine · NY

The problem first occurred with check engine light coming on early November 2021 and 59,000 miles approximate. It was a code indicating misfire of cylinder #2. The gasket, fuse and coil were replaced on that cylinder on November 13th 2021. The misfire code reoccurred after replacement of all pieces named above. I am now in the position of finding out that my car engine (Pentastar 3.6L v6) was one that have been identified of such failure resulting in engine needing replacement. I have just gone over 70,000 miles and and now being told that I need an engine replacement. I believe that Jeep should be responsible to repair this issue or replace my engine as I was never informed that this problem existed until my engine has started to fail.

Filed Dec 28, 2020 · Electrical, Engine · 127,000 miles · PA

Cold started the 2011 jeep grand cherokee limited, was in park and all the dash lights came on. It appears to be another #3 misfire, all dash lights came on, & had loss of power. Engine light blinking, check oil, low battery light, service the 4x4, and wipers all came on at once, remained on. I had the same issue in summer of 2019, then it was a #3 misfire. This time, again, the code was a #3 misfire! The summer of 2019 I had the garage replace the faulty 3 coil packs along with a new alternator which was damaged because of the bad coil packs, which fixed the issue for approximately 1 and 1/2 years. Then the issue resurfaced on christmas 2020, same problem.

Filed Nov 5, 2020 · Engine · 125,000 miles · IN

My ignition coils and spark plugs keep misfiring. More then normal. Ever since the recall where the replaced half of my engine I can't seem to keep them for long and it's getting costly.

Filed Oct 27, 2019 · Electrical, Engine · GA

My 2001 jeep grand cherokee has a defect on cylinder# 2 apparently there was no recall even though it is a defect. My lights would flicker in drive sitting at a red light, still does, and now the engine is starting to run rough, after more and more research come to find out this is an issue with these jeeps never a recall but there was an extended warranty that was put out by chrysler 10 yrs or 150,000 miles. Just found this out a couple of days ago, I have 152,000, so they would not honor their warranty. I have documentation that cylinder 2 was an issue in 2017 I have documentation where my car was diagnosed when it had 95,000 miles at the time it was wasn't a dealership so they wouldn't accept it. Its going to cost me around $4,000-$6,000 to get it fixed, not sure why it has to be dealership documentation , I feel that chrysler has been hiding this from consumers to save money and let the consumer take the fall for a defect that they were aware of. Why cant this be recalled? Regardless of miles, very disgruntled with chrysler for putting out products that have issues, I have taken my jeep to every recall it has had and its been about 5 of them. I love the jeep but the mechanical and electrical of jeep has many issues would not recommend to anyone. How many people have to have these issues in order for it to be recalled?

Filed Aug 28, 2019 · Electrical, Engine · 94,000 miles · NC

The fuel pump relay is defective. This has already been recalled but the patch "fix" jeep does does not solve the problem completely and they know this. There is an issue with the computer which does not send correct signal to fuel pump. On start car will not start often because it is not receiving any fuel. I am afraid this cheap "fix" jeep came up with will cause the fuel to go out while driving. The biggest defect with the car is the v-8 hemi cam shaft and lifters. Every mechanic I have taken my car too has said that jeep knows it is a problem but will not fix. I was driving 70 MPH when my jeep lost power and the check engine light came on and started flashing which with the loss of power cause me to just about have a wreck on the highway. It was a very scary scenario. I took it to my trusted mechanic who foudn a cylinder 2 misfire & performed a tune up and he said I needed to report the problem to jeep as they are known to have sever problems. The dealer charged me to "diganose" the problem and reported back that the lifters and cam shaft need to be replaced. This has been such a bad problem for jeep the lifters have been on back order multiple times but they will not admit it is a problem. My car has less than 100,000 miles and has been meticulously maintained and now lookin g at rebuilding an engine and jeep will only provide 2 year warranty or the work, which shows they have no trust in the fix and there is a fatal flaw with the v-8 hemi. Please force jeep to honor their customers and correct the known mistakes with their engines.

Filed May 13, 2019 · Engine · MI

Left head bad, cylinder #2 misfire with pentastar engine. You have had multiple reports of this problem in which chrysler extended warranty plans to cover this faulty engine. My jeep was purchase with a salvage title related to body work(engine was not involved) with 43, 565 miles. My mileage at time of left head default 56, 567 miles. I am outraged!! My family has been true advocates for the jeep product for 20 years, purchasing nine jeeps. I truly understand that the warranty falls off with a salvage title, I am pleading for some reimbursement from chrysler knowing that the pentastar engine is faulty with left head. I had to rent a car for 10 days in order for bluewater chrysler to get the left head in and do the job. Parts/installation $1,893.05 with car rental from enterprise $497.67 with a total of $2,390.72. I have records from the internet of the pentastar engine(faulty), records from bluewater chrysler. I will mail at your request. Please be advised, I will take this to court. I would appreciate some form of reimbursement. Thank you, mrs. [xxx]. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Mar 7, 2019 · Engine · 104,000 miles · VA

Tl* the contact owns a 2011 jeep grand cherokee. While driving over 70 MPH, the vehicle hesitated and lost power. The check engine indicator was also illuminated. The vehicle was taken to an independent mechanic who stated that the vehicle misfired and the cylinder needed to be replaced. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and provided case number: 58148205. The failure mileage was 104,000.

Filed Feb 12, 2019 · Engine · 104,000 miles · WI

Vehicle had a misfire in cylinder #3. Took to jeep dealership to diagnose and they found a rounded camshaft and bad lifters. Vehicle has 104,000 on it and I inquired as to options. #1 - $4,600 repair (min if they do not find anything else) and they were having issues getting lifters due to back order #2 - replace engine, quoted $8,600 and once again was unsure the timing as no long or short blocks were available. Inquired as to what could have caused this and was told that there is nothing, as the owner, I could've done. That sometimes this just happens and if it was closer in years to the end of warranty they would cover, however since it is 7 years old there is nothing they can do. Find it surprising and unacceptable that with a little research you can find that the 5.7 hemi has numerous complaints about rounded camshafts due to bad lifters. Further acknowledged by the dealership when they were commenting on how hard it was to obtain the necessary parts to repair.

Filed Jan 28, 2017 · Fuel system · 1 miles · TN

Camshaft lifters break and need to be replaced. Cylinder 8 misfire when driving.

Filed Oct 9, 2015 · Engine · 27,700 miles · PA

Check engine light indicating cylinder # 2 misfire and an engine ticking sound. I'm researching the issue with chrysler and I'm see a lot of problems with this issue but I don't see any recalls.