My engine light on my 2001 Jeep Grand Cherokee 4.0Liter came on while driving today. It flashed for a while but now is on all the time. I checked and the following codes came up: P0300 P0301 P0302 P03 … read more
When the PCM detects unexpected high air flow entering or bypassing the ETCS (from a vacuum leak, etc.), it will set the P2172 code. Note: The definition of code P2172 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or online repair database for the exact code definition.
Misfires, rough idle, P0300, p0174, p2099. Last year 2018 in June I had these same codes come up with really rough idle. I changed spark plugs and wires and it came back a month later. I took it to a mechanic and he couldn't find anything wrong with it.
For the new play by play misfire video click here:http://www.youtube.com/watch?v=Sg7iFytxfzQMisfire Trouble Shooting: 30 to 60 minutesIf your car is running
Here's the codes: P0300 random misfire. P0132 O2 Sensor Circuit High Voltage Bank 1 Sensor 1. P0158 O2 Sensor Circuit High Voltage Bank 2 Sensor 2. Symtoms : Start Jeep, and runs really rough at Idle and MIL flashes, and worse in gear for a minute or two, then seems to settle down, and I can drive it no problems.
SOURCE: 2005 Grand Cherokee 4.7L. P0300 is Multiple Misfire and P0303 is one specific misfire in the cyl #3. A code P0303 may mean that one or more of the following has happened:
The check engine - Jeep 2004 Grand Cherokee question. Search Fixya 2010 chevrolet camaro p1380, p0300, p0305 and p0306 codes --was stored away for winter ( 3 mos ) Hello, working on a 2012 Jeep Grand Cherokee with a 3.6. A few weeks ago got code P0300. The car has about 80K on it so I replaced the spark plugs. Ran fine for about 3 weeks then staring running rough and P0300 came back. Can’t see any vacuum leaks but I’ll run a smoke test to confirm. P0301 is a fairly common trouble code with the Jeep Grand Cherokee. It's an OBD2 code and indicates that your vehicle’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your Grand Cherokee. Fixing P0301 should be considered a high priority. So, replace the sensor to solve the code P0038 on your Jeep vehicle. On average, it will cost between $150 and $470 to replace a bad oxygen sensor bank 1 sensor 2. The labor cost can be between $100 and $130, while a new oxygen sensor can cost around $20 to $298. 5. Checking the ECM:
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I have a 2003 Jeep Grand Cherokee Laredo. Inline 4.0 6-Cylinder. I keep getting the following codes: P0300: Random/Multiple Cylinder Misfire Detected. P0302: Cylinder 2 Misfire Detected. P0303: Cylinder 3 Misfire Detected. P0304: Cylinder 4 Misfire Detected. 2004 Jeep Grand Cherokee running rough with code P0122. Previously had codes p0300, P0302, and P0303. I replaced the spark plugs and those 3 codes went away. Now the P0122 came on and the engine runs a little rough when idling in gear. It runs fine when driving but when stopping at a light it rouns unevenly. P0300 is the multiple cylinder misfire. What year is your truck? There are multiple TSBs ( T echnical S ervice B ulletins) for the issue. Apparently there's one for 2021 3.6 that instructs the tech to replace the spark plugs.
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The Dreaded P0304 Code. Jump to Latest Follow. 21K views 27 replies 12 participants last post by 222Doc Jul 24, 2014. NWrunr Discussion starter. 141 posts · Joined 2008. #1 · Nov 5, 2012. My code finally showed up this morning. Mine was built in 8-11, and has 20K miles on it. I thoughtmore hopingthat I would not see this as others have.

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