Manifold/header/muffler/tail Pipe Problems of Jeep Grand Cherokee - part 1

Dear NHTSA: I was very disappointed when my engine developed an oil leak and the cause was due to a known mfg's defect in the plastic oil filter adapter & cooler p/n 68105583-af. The dealer (lansdale Chrysler Jeep, montgomeryville, PA) stated that this part should never fail, it's a known problem with the plastic housing developing a crack, and many thousands of these parts are on backorder because Jeep has changed suppliers. It doesn't help that the part is made of plastic and it's located under the intake manifold resulting in a bill for $977 to replace it. I was lucky as they had a replacement in stock. I've contacted Jeep seeking reimbursement. From a safety perspective, engine damage could result from a loss of oil and a risk of fire if the leaking oil contacts a hot surface. My vehicle has 86,325 miles and is no longer under warranty. Jeep should have a replacement campaign or recall due to the extreme number of failures. I hope you can help with getting Jeep to take ownership of this issue.

See all problems of the 2014 Jeep Grand Cherokee 🔎.

I bought this Jeep on the 31st of December. Only 10 days into having it the oil started leaking. I took it to a repair shop and he advised me that it was leaking from the oil filter and housing along with the oil cooler. He advised me that this is a ongoing issue with these Jeeps. This would not be a easy fix as the intake manifold along with the heater hoses, filter housing/oil cooler assembly would all have to be removed.

While driving 60 miles per hour along the southbound express lane of garden state parkway my new 2020 Jeep Grand Cherokee started shaking. Within seconds, I pulled on to the grassy area next to the fast lane where my vehicle died. After getting towed to the dealership, I was notified that my new car with 329 miles on it is in need of a new engine, new batteries and new starter. Of notable concern on the repair order is the following: "what is present inside intake manifold is pieces of metal. " while the case is not yet closed, Chrysler informed me they intend to fix the vehicle under warranty and return it to me. This is a serious safety concern and I fear the blown engine, dead batteries and starter could have caused additional, unrecognized damage.

See all problems of the 2020 Jeep Grand Cherokee 🔎.

At approximately 120k miles I began to notice a slight tick coming from the driver side of the motor. Over the next 5k miles I changed the oil several times, swapped plugs, coil packs and injectors to rule out any potential issues. I also did a visual inspection of the exhaust manifolds. The problem persisted and got worse. There was also a consistent hesitation under medium to heavy throttle input. I'm now at 126k miles and had a check engine light - p0303 for cylinder 3 misfire. I have started disassembling the motor and noticed the lifter has seized and started destroying the camshaft.

See all problems of the 2012 Jeep Grand Cherokee 🔎.

Chrysler (Jeep) has a long running problem with exhaust manifold bolts breaking prematurely as in my case (75,000 miles). It is a common problem and places the occupants of the vehicle in danger due to exhaust fumes entering the passenger compartment, in addition to extremely hot exhaust gases creating a fire hazard in the engine compartment. Chrysler will not warrant "fasteners" or fix the issue in it's manufacturing plants and leaves the owner with a very large bill to fix it. Can you please research and make Chrysler responsible for continuing to allow a known and dangerous situation to continue? I have called Chrysler and filed a complaint and request for assistance.

Component (diode) on 60 pin pcm has a short causing injector number 6 to stick wide open. Result is a cylinder compressing fuel which can lead to explosion, also raw fuel escaping out of the tail pipe and large amounts of smoke. Gasoline pulls the oil off of cylinder wall causing excessive friction and engine damage along with catalytic converter damage. If rear ended when injector is sticking open could cause explosion or fire! I have confirmed this on 3 other 93-95 Grand Cherokee obd I models as well. Jeep was idling near someone welding and the injector stuck open and started a fire. Fire was exstinguished immediately with dirt and water. No physical damages occurred just a scare. I moved injector 6 plug to 8, then 8 stuck open, upon putting pressure on the computer connector I realized the injector would operate normally again. Been happening for months, just now found the root cause. Will upload pics later if it will let me. I can set fire to the ground where the tailpipe is when injector is stuck open.

Both mufflers have rusted and have holes in them. My Jeep is parked in the garage, never driven on the beach, washed regularly and very well taken care of. We bought it 10/31/11 straight off the showroom floor with 6miles on it. Noticed this today 12/25/18 due to puddles on the garage floor.

See all problems of the 2011 Jeep Grand Cherokee 🔎.

While I was idling in a parking lot a coolant hose to my turbo split. This hose ( the size of your thumb) is under the intake manifold and is not accessible to check and maintain. Seeing that this hose is a few inches from the turbo and even closer to the right engine bank, the heat is extreme. The hose is a rubber hose not unlike a lawn mower gas hose. If it wasn't for the smell of hot coolant and being stationary, the engine would of lost it's coolant without any signs. The maintenance portion of the owners manual assumes we can see and get at all coolant hoses. The turbo hose should last longer than the coolant that in it, on mine it was approximately 82,000 miles. A steel braded hose would be more appropriate in this location. Attached is the portion of the owners manual and a picture of the new hose in place. To replace this hose the dealer had to drop the engine out of the truck and it took over 10 weeks to get it back.

While driving down the highway all of a sudden I heard a loud hissing sound. Noticed it was a manifold leak after further inspection noticed two bolts were broke on the drivers side, left side of the motor by the firewall. There is no possible way to remove these broken bolts other than pulling the motor. No mechanic will touch it. Therefore leaving the cost on the consumer. The grade of the bolts are very poor. They knew the 4. 7 v8 motor would not have enough space for the consumer to fix these issues. Leaving the consumer to pay thousands of dollars to fix their mistake it is not safe it is not fair. Now the consumer has to worry that's excessive heat that escaped out the manifold due to the broken bolts doesn't catch anything on fire under the hood while driving possibly injuring or fatally injuring the people in the vehicle as well as others driving on the road. I feel they should be responsible for there mistake. These bolts should not break off within 100,000 miles it is a hazard to the driver there occupants I feel they should have a recall. It's one thing if you just don't have the money to fix it it's another thing if you do and there's no possible solution that's not what I paid for now I have to drive a vehicle that I don't feel safe I can't trade it in or sell it because you can hear it now I'm stuck with driving it for another couple thousand miles and be out of the vehicle on their behalf.

See all problems of the 2004 Jeep Grand Cherokee 🔎.

This vehicle has a 5. 7 liter hemi v-8. It currently has an exhaust manifold leak because Jeep uses cheap screws to mount the manifold to the engine block. As such, the screws snap causing a leak. This is a well know problem for this engine but Chrysler refuses to acknowledge it and the repairs will be a minimum of $500. Never buy a Jeep!.

See all problems of the 2007 Jeep Grand Cherokee 🔎.

Exhaust manifold bolts break and allow unfiltered exhaust fumes into the cabin. There are hundreds of complaints at Chrysler about this problem and they will not acknowledge or fix the problem. Bolts installed are 8mm instead of the standard 10mm.

See all problems of the 2005 Jeep Grand Cherokee 🔎.

Catastrophic engine failure at about 124,000 miles. Luckily in the driveway where I had parked the car after running normal errands. The car would not start up again and had to be towed since the battery was new and the starter seemed frozen. I took excellent care of this car at the dealership and at a top local garage since we bought it. I was stunned that the engine failed without any notice, no warning lights, no noise, nothing. The local mechanic saw "chunks of metal" in the pan. I now need a completely new engine 5 weeks after an oil change due to a design flaw in my Jeep hemi engine. I never received any letter or notification about this apparently well known and relatively common problem. I had every recall performed on this car. There was never a recall for this problem which apparently includes the intake manifold. The response from the dealership was that the hemi is a good engine. Really??? no apologies, no call from the manufacturer. Out of warranty, so it is just too bad for me as a customer. They know the design flaw exists but don't care about the customer. Just their bottom line.

Tl the contact owns a 2013 Jeep Grand Cherokee. The contact stated that the check engine warning light illuminated while driving. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the failure was due to a failure of the oil filter housing. Additionally, the contact was informed that the intake manifold needed to be replaced. The vehicle was repaired. Neither the dealer nor the manufacturer were notified of the failure. The failure mileage was 45,000.

See all problems of the 2013 Jeep Grand Cherokee 🔎.

I just had my Jeep inspected and was told that a manifold bolt was broken and would cause other issues if not fixed. Damage to manifold & gasket, etc. ) they also said that this is a common issue with Jeeps chryslers and doge engines.

Tl the contact owns a 2011 Jeep Grand Cherokee. While driving various speeds the vehicle suddenly shut off. The failure mainly occurred while driving in cold weather and while making a turn in either direction. The vehicle was taken to the local dealer (rainbow Jeep, 301 river highlands blvd, covington, la) on several occasions and the driveshaft, oil pan, purge solenoid, exhaust manifold gasket and bolts, and the fuel pump were replaced; however, the failure continued. The manufacturer was notified of the failure, but no solution was offered. The failure mileage was 60,000.

The contact owns a 2005 Jeep Grand Cherokee. While driving approximately 57 mph, an abnormal sound emitted from the front driver side of the vehicle. The vehicle was taken to a dealer where it was diagnosed that the exhaust manifold bolts were fractured and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 134,000.

Exhaust manifold bolts broke on 4. 7l v8 engine while driving down the street.

See all problems of the 2006 Jeep Grand Cherokee 🔎.

A known problem with a defective oil filter housing. This substandard design defect cracks and causes oil to leak on the engine manifold and puddle. This could cause oil sending unit to fail and loose engine oil. This is a problem with the 3. 6 l six cylinder engine.

My Jeep Grand Cherokee has been sputtering, stalling when stopped and when driving, backfires blown apart 2 mufflers. It will not show a check light or give an error code when hooked up to a computer. Have researched online and found several people with same issue. Have done as they have and replaced nearly every sensor. Have yet to replace pcm/ecm. Don't know if this will fix due to some online have and still having the same issue. Like the people online I have taken it to different mechanics, none of which could duplicate or find a problem. Surprised with as many people having this issue Jeep hasn't resolved this. I think dealerships are aware of this issue because some people online have traded their Jeeps in and gotten very little towards trade-in.

See all problems of the 1997 Jeep Grand Cherokee 🔎.

The contact owns a 2007 Jeep Grand Cherokee. The contact stated that the electric turbo warning lamp illuminated. The vehicle was taken to the dealer. The technician diagnosed that the intake manifold swirl valves and motor needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure and current mileage was 83,000.

The driver pulled the automobile into a driveway on a downhill slope. The driver shut the vehicle off using the push button start/stop. The driver returned to the vehicle 10 minutes later, with a passenger in the front seat. The driver started the vehicle (foot on brake as required) using push button start/stop. The driver engaged the transmission into reverse using the shifting lever (with foot still on brake as is required by the brake transmission shift interlock (btsi) system). When engaged in reverse, the engine revved to a high level, and the car traveled in reverse up the hill (driveway), through the street, and into a ditch. Side and front airbags deployed. Driver believes they never took foot off the brake, and the braking was not sufficient to overcome torque of the engine/transmission. Vehicle damage includes air bag deployment, cabin roof liner detachment, three bent wheels, minor damage to muffler, minor body damage. Dealer checked electronics/instrument recordings and noted nothing unusual appearing, and had no knowledge of similar problems.

I am the owner of a 2005 Jeep Grand Cherokee with a 4. 7 v8. The exhaust manifold bolts (qty 2) on the passenger side sheared resulting in exhaust manifold leak (possibly due to heat or under engineering rust was not a factor). I have made Chrysler aware of this issue as many people have experienced this issue with the 4. 7 v8 found not only in the Grand Cherokee but the commander, and Dodge durango as well. A leaking exhaust manifold can cause engine compartment fires. This issue can also result in toxic fume inhalation through cabin air intake ports. The dealership quoted $1300 to replace (8) bolts that should never fail. When I called Chrysler, they were not interested in my safety, and excused the issue by stating that "cars are just not made like they used to be". I find this ridiculous due to the fact that this issue can result in death, oxygen deprivation, as well as server burn in the event of fire.

The contact owns a 2001 Jeep Grand Cherokee. While stopped at a stop light, the contact noticed a large amount of white smoke emitting from the tail pipe. The temperature gauge reading increased. The vehicle was taken to the dealer for diagnostic testing who stated that the hydraulic fan module would have to be replaced. Additionally, the heat would not activate. The technician stated that the blend door would have to be replaced. The blend door was replaced but failed a second time. The vehicle was not further repaired. The approximate failure mileage was 107,000.

See all problems of the 2001 Jeep Grand Cherokee 🔎.

Tl-the contact owns a 2008 Jeep Grand Cherokee diesel. The contact stated while driving 35 mph the check engine light started to illuminate. After inspecting the vehicle he noticed the oil intake tube has oil leaking into the intake air manifold and going into the engine. The vehicle was taken to the dealer who will replace the intake manifold and the air intake hose. The vehicle was not repaired. The manufacturer was notified who file a complaint and offered to pay for a third of the cost. The VIN was unknown. The failure mileage was 106,726. Mw.

See all problems of the 2008 Jeep Grand Cherokee 🔎.

Started out to go to work @ 6 am travelled with no issues to the kids sitter's house and then continued on to work on double lane highway speed limit 60 mph. The Jeep started sputter, jerk and eventually died, didn't realize it had died so pulled off to side of road, turn the Jeep back on it kept sputtering, jerking and died again. Finally, it backfired 3 to 4 times and stayed started. Check engine light came on went and had the code read it stated it was the ignition coil and catalyst system. So we changed th ignition coil and catalytic converter, along with the muffler do to the fact the backfiring blew a hole plum through the muffler. Still same problems. Have had several near miss of crashs, and bodily injury. Now it doesn't want to start and you sit on the side of the road like I did for 2 hours before it wanted to start up.

See all problems of the 1996 Jeep Grand Cherokee 🔎.

The two rear bolts that attach the left exhaust manifold have sheared off causing a significant exhaust leak and poor engine performance while engine is cold. Based upon internet research this appears to be a common issue on 4. 7l v8 engines.

The contact owns a 2005 Jeep Grand Cherokee. The contact stated that while driving at various speeds, an unknown noise was coming from under the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed that the exhaust manifold gasket, the exhaust manifold bolts and the nuts and catalytic converter bolt needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was 75,000.

Driving approx 50 mph, the Jeep quit, no warning signs, no power steering. Momentum got me off the road. Dealership wasn't able to fix the problem. This happened in March 2011. Sept 2011 I was passing a transit bus on the way to work and as I started to pull back into my own lane the Jeep quit again. No warnings, it just quit. I had to coast into the front yard of someones house because I had no steering. I sat for a few minutes, started it up and drove back home. The onboard diagnostics light, esp, bas and traction control lights were on. From that point the Jeep was running very badly. Dealer had my Jeep for 6 days and said it was a map sensor on the manifold. Got the Jeep back and backing out of my driveway in the middle of the road, it quit. A couple tries and it restarted. I'm very upset that this vehicle has put me in harms way on 3 separate occasions. I couldn't imagine driving on a twisting steep road and having it quit. I'm lucky I wasn't killed the day I was passing the bus. I'm not convinced the map sensor is the problem and I don't trust this vehicle. I drive a lot and transport my kids. We are all in danger in this vehicle. Mainly because, it gives you absolutely no warning that it's going to quit, it just shuts down as if I shut the key off. I have only the ignition key on the keyring so I know it has nothing to do with heavy keys pulling on the ignition switch. I am not the only complaint, they are all over the web, it is an issue and someone needs to address it. This vehicle has become dangerous.

The contact owns a 2007 Jeep Grand Cherokee. The contact stated that while driving 30 mph the vehicle stalled without prior warning. The vehicle was taken to a dealer who diagnosed that the exhausted manifold was defective and needed to be replaced. The repair failed to remedy the failure. As a result the vehicle had to be taken back to the dealer who stated that there was carbon build up in one of the valves. The repair performed for the second diagnosis also failed to remedy the failure. The manufacturer was not made aware of the failure. The failure mileage was 89,000 and the current mileage was 89,449.

Engine started stalling while coasting to stops and would occasionally stall while stopped. In time with higher milage the engine started stalling at highway speeds also. No prior warning or dash warning lights would warn ahead of stall. Eventually with higher millage check engine light occasionally would come on while driving but wouldn't cause stalling problem. At 95,000 miles had dealer flash pcm per TSB 18-004-08 for code p0430, power flushed and cleaned engine fuel injection system. Removed and cleaned throttle body on intake manifold and ensured proper minimum air flow settings, flushed combustion chamber to remove carbon deposits. TSB 18-004-08 resolved check engine light from coming on but still have stalling at idle or highway driving. Engine performs as always with no prior warnings before stalls.

The left rear exhaust manifold bolt broke causing an exhaust leak must be an issue with the 2006 seen other reports of the same bolt breaking, car was in motion city street.

Exhaust manifolds leak, potentially introducing exhaust gases, including carbon monoxide, into the passenger area. I initially took my vehicle to lithia Dodge in santa fe, nm to report an exhaust leak that sounded like it was coming from the passenger side and was to be repaired under warranty. They only repaired the passenger side without apparently performing a leak check. The fix for this is to replace the oem gasket with one that incorporates metal to apparently compensate for the expansion of the dissimilar metals of the head/exhaust manifold. Since there is a defect, the gaskets leak, and the uneven expansion causes the bolts/studs to break, exacerbating the problem. After the repair the sound seemed similar but I assumed it must be injector or valve/lifter noise. Recently I had my transmission serviced by a local shop and they noted that I had an exhaust leak. Again I listened and it sounded like it was coming from passenger side. This time when I took it to the dealer the mechanic performed an inspection and found the driver's side to be leaking. Again he attempted to replace the oem gasket with the upgraded gasket, but in the process broke a stud off in the head and was unable to repair without excess expense, now not under warranty, of course. The service manager also told me that the other side was leaking and that they would have to repair it, but the mechanic said that the passenger side was not leaking. It's obvious the manufacturer knows there is a defect, since they issued an upgraded gasket. These vehicles with the 4. 7l v8 should be recalled and the proper gasket installed. I have read on various forums online that this has been an issue since the introduction of the 4. 7l v8 in Chrysler products. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2006 Jeep Grand Cherokee. The contact stated that the engine light would intermittently illuminate. The vehicle was taken to an authorized dealership who stated that it was probably caused by the gasoline cap. The dealer inspected the vehicle and stated that there was a misfire in the engine but they could not determine where. The contact then stated that after a few months, a constant cloud of smoke emitted from the tail pipe. The vehicle was taken to a local mechanic who stated that antifreeze was mixing with the engine oil. The contact consulted the dealership who stated that the antifreeze could not have caused the failure. The contact called the manufacturer who offered no assistance. The vehicle was repaired by the local mechanic. The VIN was unavailable when the complaint was filed. The current mileage was approximately 43,800. The failure mileage was approximately 42,000.

2008 Grand Cherokee 4x4 4. 7l flexfuel stalling at various highway speeds. Throttle lagging, harsh up/down shifting, hesitation on torque demand, fuel mileage reduced by 20%. After the first two stalling occurrences, the dealership replaced the fcm (front control module) since the serial number of the installed one-337- matched the February 2008 recall, although Chrysler database VIN recall search came back empty??!! the third and fourth stalling events were followed up by the replacement of the pcm (powertrain control module) since a "soft fault"-"torque request denied" was found stored within the controller. However, after six hundred miles, a fifth stalling occurred. This time a hard fault related to the map sensor (intake manifold absolute pressure) was found. The replacement was scheduled in 48 hours. There were six dealership appointments(only two documented though ??!!) and it was invariably either "we have to order the part" or "there is nothing wrong we could point at". The almost new vehicle is not safe to be driven on public roads. Yet Chrysler never provided a temporary replacement until the safety hazard could be located and eliminated. After every attempt of solving the problem, the customer is sent away to try his (her) good luck with a vehicle which might be okay. I don't think this a professional approach for both Chrysler and the dealership servicing the vehicle. Guessing and safety does not belong within the same sentence !.

I have a 2002 Jeep Grand Cherokee. It has 85,000 miles. It began losing coolant. The mechanic determined it was a head gasket. After taking the engine apart, it was discovered that a casting defect in the intake manifold caused the problem. There was a water jacket covered by casting material at manufacture.

See all problems of the 2002 Jeep Grand Cherokee 🔎.