Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
full bulletin at NHTSA ↗2009 Jeep Grand Cherokee engine problems
moderate 15 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
When does it fail?
Of the 15 engine complaints filed for the 2009 Jeep Grand Cherokee, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
No new NHTSA engine complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
full bulletin at NHTSA ↗Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
full bulletin at NHTSA ↗Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
full bulletin at NHTSA ↗Valve Body. These may cause over drive cycling.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2009 Grand Cherokees describe stalling as the dominant complaint. Most incidents happen at modest speeds (20–55 mph) with little warning. The vehicle shuts down mid-drive—sometimes killing power steering too—but restarts cleanly after shutdown and restart. One owner stalled three times in two months; another had multiple incidents starting at 5,000 miles. Dealers consistently fail to reproduce or fix the problem. One owner reports Chrysler said the 2009 model fell outside the scope of a recall for the same issue.
One pilot reported sudden wide-open throttle acceleration while driving uphill, cycling through three ignition cycles before returning to normal—no floor mat involvement.
Thermostat readings fluctuate wildly on some units, triggering check engine lights; Chrysler issued a Technical Service Bulletin (P2181) but owners were charged to fix it.
A radiator hose elbow with a plastic barb failed during a dealer test drive, dumping all coolant. Coolant system failures and radiator hose problems appear here alongside the electrical stall issues.
Sporadic no-start conditions round out the reports. Mechanics across multiple dealerships have been unable to pinpoint root causes.
Same Jeep Grand Cherokee engine reports on nearby years: 2006 · 2007 · 2008 · 2010 · 2011
Failure modes owners describe
Sudden unintended acceleration (wide open throttle)
Engine enters wide open throttle condition without driver input, resulting in rapid acceleration. Occurs intermittently and resolves after cycling ignition multiple times.
When: While driving on highway; occurred during hill climbing in one case
Symptoms owners cite: Engine goes to wide open throttle without pedal input; Vehicle accelerates rapidly to 60+ mph; Condition resolves after cycling ignition on/off multiple times; No floor mat interference or cruise control activation
Check engine light with thermostat gauge fluctuation
Check engine light illuminates while thermostat gauge reading fluctuates between extremes. Technical Service Bulletin issued for this condition (P2181 code).
When: Multiple occasions reported
Symptoms owners cite: Check engine light illumination; Thermostat gauge reads up and down erratically
Codes mentioned: P2181
Repairs/costs cited: Owner reported needing to pay for TSB update at dealer despite stating it's a manufacturing issue
Recalls/TSBs owners mention: Technical Service Bulletin issued for P2181 code; dealer required to perform update at owner's expense
Stalling at low speeds with loss of power steering
Vehicle stalls suddenly while driving at low to moderate speeds (20-55 mph), often with loss of power steering and all warning lights illuminating. Vehicle restarts normally after stall. Failures often cannot be diagnosed or duplicated by dealers.
When: Various speeds (20-55 mph); earliest reported at 5,000 miles; as late as 86,000 miles
Symptoms owners cite: Engine stalls without warning at low to moderate speeds; Loss of power steering during stall; Warning lights illuminate (in some cases all warning lights); Vehicle restarts normally after stall; No check engine light displayed after restart (in most cases); Intermittent nature; some vehicles stall multiple times
Repairs/costs cited: Dealers unable to diagnose or duplicate failure in multiple cases; PCM updates attempted in one case with no resolution
Recalls/TSBs owners mention: Manufacturer offered no assistance in most cases; one owner reported manufacturer stated 2009 model was not in scope of recall for similar problem
Sporadic failure to start
Vehicle intermittently fails to start. Occurs sporadically and is unrelated to stalling events.
When: Reported starting at 5,000 miles; recurred by 8,900 miles
Symptoms owners cite: Vehicle will not start on some occasions; Occurs sporadically without pattern
Upper radiator hose elbow failure
Plastic upper radiator hose elbow barb breaks, allowing hose to slip off and causing complete loss of coolant. Results in immediate engine overheating and check engine light.
When: Occurred while test driving after front-end alignment
Symptoms owners cite: Immediate loss of all coolant; Engine overheating; Check engine light illuminates
Repairs/costs cited: Plastic elbow barb broke off; owner noted this reported as common occurrence on forums
Synthesized from 15 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
When the red light turned green, I try to proceed across the intersection when the car just died. The radio continued to play but I had no power steering. I managed to pull over and turn on my flashers. Meanwhile the radio continued to play. I put the car in park and try to start the car again and it did indeed start. If I had been driving on i75 going 70mph and the car stalled I would be in huge…
Tl* the contact owns a 2009 Jeep grand cherokee. The contact stated that the check engine light constantly illuminated on the instrument panel. The vehicle was taken to an authorized dealer on four occasions and a new thermostat was installed. The failure recurred and the vehicle was taken back to the dealer. The manufacturer was notified and a claim was filed. The failure mileage was 40,000 and…
Tl* the contact owns a 2009 Jeep cherokee. The contact stated that after having the electronic key fob replaced, the vehicle started to sporadically stall while driving at various speeds. The vehicle was taken to the dealer where the technician was unable to diagnose the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 86,000 and the…
Upper radiator hose elbow failed allowing immediate loss of all coolant fluid. The barb on the end of the plastic elbow broke off allowing the hose to slip off the elbow. This occurred while driving and resulted in immediate check engine light and overheating of engine. The driving was being done by a firestone technician that was test driving the vehicle after a front end alignment. Based on…
Common questions
How serious is the engine problem on the 2009 Jeep Grand Cherokee?
It's a documented issue but not catastrophic. 15 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 15 complaints that reported odometer mileage, most engine failures cluster between 24,100 and 80,000 miles, with the median around 50,000. A quarter of owners report trouble before 24,100; a quarter make it past 80,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.