Crankcase (pcv) Problems of Jeep Grand Cherokee

We bought our Grand Cherokee at falls motor city and they offered us a free first oil change. At 7000 miles we took it in had the oil change. Dealer never reset oil light drove it home next day engine light is on. Found oil in everything. Took to another Jeep dealer they did a software update saying that was issue. That didnt fix it. Second time they changed crankcase sensor since it had oil in it. Still didnt fix it. 3rd time they replaced the crankcase cover for oil cap since it was leaking. After 7000 miles they found that the Jeep had 11 quarts of oil in it and it was supposed to only have 8 in it. The owners manual says 8 quarts but I have found online other people have has more then 8 quarts in their eco diesel. Due to this we had lost 5mpg and used excessive amount of def. Falls motor city said that there wont be any issue now that the other dealer put the correct amount of oil in it. There is still oil in everything. The mileage has gone back up some but still not getting what it used to be. Im worried now that later on down the road the motor will fail or something on the motor will fail due to oil being pushed everywhere else since it was overfilled. This all happened back in October 2015 and just the end of Jan is when everything was figured out too much oil was put in. Only thing I can think of is Chrysler messed up and had in their systems that the eco diesel was supposed to take 11 quarts and not 8 since other vehicles have had that much put in also at the dealer. It says 8 quarts in the owners manual.

See all problems of the 2015 Jeep Grand Cherokee 🔎.

Wife traveling with son on fwy at legal speed of 70 mph w/cruise control on, car suddenly decelerated causing a violent maneuver forcing car into neighboring lane and almost crashing. She stated it was as if it suddenly downshifted into lowest gear and brakes applied forcefully. Regaining control she deactivated the cruise control and proceeded to destination at 50 mph. Took to dealership in davis where it was diagnosed as catastrophic failure of the transfer case which was then replaced at the cost of $2842. 75. She retrieved car two days later and proceeded to drive back home (distance is @ 178 mi one way). Car repeated sudden deceleration upon entering the fwy and getting up to speed. Continued home due to medical appointments to keep. Kept cruise control off but called dealership to report that replacing the transfer case did not solve the problem. I pulled codes upon her arriving home and found only code 0430 (catalyst system efficiency below threshold [bank 2] indicating the converter not working to specs. Today she was returning to davis to visit with grandchildren and experienced the same situation. At 70 mph car suddenly decelerated rapidly (as if brakes were applied forcefully) and caused her to abruptly move into the lane to her left. She regained control and continued on at 50 mph. The dealership informed her no mechanics would be available until Monday but as she has a flight out of lax to catch early Monday a. M. She decided to continue on to l. A. Without using the cruise control and proceeding at slower speed. The power steering pump was replaced on 4/15/2013 at dealerships recommendation due to a leak and the transmission was serviced in addition to having new valve cover and gasket put on. Spark plugs replaced, throttle body and combustion chambers cleaned and pcv valve replaced. Internet research indicates this is a repeated problem with the Jeep Grand Cherokee.

See all problems of the 2008 Jeep Grand Cherokee 🔎.

While driving on the interstate at 65 mph, the vehicle's engine stalled. I had to put the vehicle in neutral, turn the ignition off an back on to restart it. This first happened just after the 30 day warranty was over, as I bought the vehicle used in may of 2012. Since that time, the vehicle has stalled at highway speeds or when slowing down for a stop on dozens if not hundreds of occasions. The spark plugs, egr valve, ignition coil, pcv valve and map sensor have been changed to no effect. There are no meaningful diagnostic codes stored in the obd-ii system. I feel this condition is very dangerous, as I never know when the vehicle will stall, causing a loss of power steering and brakes, and the ability to accelerate out of harm's way. It is my understanding that many of these same vehicles with the same engine are having similar issues. I can no longer let my wife or teenage son drive the vehicle because of this condition.

See all problems of the 2007 Jeep Grand Cherokee 🔎.

I bought this Jeep on 9/20/2013. The truck is equipped with the 5. 7 l hemi engine. Over the first 50 days and 1,157 miles of ownership I have encountered 18 episodes of the vehicle stalling, with 14 of those stalls occurring on major highways in traffic. The stalls occur with no warning. The vehicle immediately decelerates to a stop and I am left with no power, no steering and no brakes. One dealership blamed it on a bad battery. The dealership which sold me the Jeep diagnosed the problem as a m. A. P. Sensor, which they replaced. That did not correct the problem as the stalling problem continues to occur. The most recent was on 11/9/2013 while driving in the center lane of the PA turnpike at 65 mph. The Jeep stalled and came to a stop, with a semi tractor-trailer behind me. I have no idea how that truck driver was able to swerve in time to miss me. Mechanics and on-line forums identify possible causes for the stalling as 1. A defective (ecm) electronic control modules; 2. Shorts in the wiring harness; 3. Sparks plugs; 4. Egr valve; 5. Ignition coil; 6. Pcv valve; 7. Transmission solenoid pack. There are no diagnostic codes stored in the obd-ii system. One school of thought is that 2007 Jeep Grand Cherokee and commanders equipped with the 5. 7 l hemi engine are extremely sensitive to radio frequency interference from the waste spark on the coil. As other complaints have noted, this is an obvious and persistent problem with Jeeps equipped with the hemi engine, and Chrysler has turned a deaf ear to the complaints. Perhaps they are waiting for the fatalities to occur. Why NHTSA hasn't done more to order a recall is beyond my comprehension. The problem has been reported on for years with no action taken by Chrysler. This Jeep is, for lack of a better word, a deathtrap. At best it cannot be trusted, it is unsafe and unreliable. At worst it is an accident waiting to happen!.

The contact owns a 2004 Jeep Grand Cherokee. On may 7, 2008, while driving between 70-75 mph, the vehicle stalled for the third time. The failure also occurred at lower speeds. The vehicle restarted after the first two failures, but not after the most recent. The dealer stated that the crankshaft sensor failed. The VIN was not included in NHTSA campaign id number 04v112000 (electrical system:starter assembly). The VIN was unknown. The current and failure mileages were 50,412.

See all problems of the 2004 Jeep Grand Cherokee 🔎.

Oil changed routinely around 3000 miles. Cold morning -3 fahrenheit. Let car warm up for 5-10 minutes. Drove 5 miles to work. When stopped at a light on the way to work I could smell hot oil. I thought it was the car in front of me. After I parked in the car I noticed a large amount of smoke coming from my hood. I immediately popped the hood to see what was going on. There were approximately 3 inch tall flames on the exhaust manifold for about 6 inches along the manifold. Since the engine was off the flames died out and did not ignite the car. The valve cover gasket had failed and was leaking oil out on the exhaust manifold. Dealer thought the pcv valve might have had moisture in it and froze. This caused excess pressure to build and popped the valve cover gasket the weakest point. Dealer replaced valve cover, valve cover gasket, and pcv valve. Failure again: exactly 2 weeks after the first failure. Same scenario, it was 3 degrees this time and I let the car warm up for less than a minute. This time though there was no fire. Dealer tore deeper into the engine and found the oil had sludged up. I had just changed my oil a month ago and 1000 miles previous. The sludge caused moisture to be trapped in the pcv valve and freeze. The sludge also was found in every component the oil lubricates. When I asked the dealer what I can do to prevent this from happening again they told me to change my oil as recommended. I already do that. They suggested that since I first saw this failure at 35000 miles, I should have my engine torn apart every 35000 miles to have the sludge removed. They told me they have seen the sludging problem before and Chrysler is aware of it. Chrysler will not cover the sludge clean up once it is out of warranty at 36000 miles.

See all problems of the 2005 Jeep Grand Cherokee 🔎.

: the contact stated while driving 50 mph on a city street, the engine stalled and there was a loss of all vehicle power without warning. The contact coasted the vehicle to side of the road. The engine would not restart. The vehicle was towed to a dealer who determined the crank case sensor failed. The manufacturer was notified.

Vehicle was loosing power, cutting out and dying. While accelerating or driving at a constant speed it would cut out. When you would slow the vehicle to stop or turn it would die loosing all power steering, brakes, etc. Check engine light would turn on but sometimes the reading would be lost by the time it went to mechanic. Crank shaft sensor was replaced with a napa brand. Still the problem kept happening. Several other parts were replaced over 3 years trying to figure it out. Finally in March 07 the mechanic replaced the crank shaft sensor again but with a factory part. Haven't had any problems since. I am upset because I had to pay for a part to be preplaced twice plus others, exceeding $1000 because the after market part wasn't compatible with my vehicle. Either napa needs to stop making this part or Jeep needs to let consumers know that this particular part won't work. Have read reports of other vehicles having same problem. Maybe this could help them.

See all problems of the 1996 Jeep Grand Cherokee 🔎.

Concern regarding safety of brakes, shake very noticeably when brakes applied. Replaced front rotors and calipers. There was continuing unresolved brake problems. . Read more...

See all problems of the 2002 Jeep Grand Cherokee 🔎.