Jeep - Cherokee :: 2009 - Engine Is Running Rough / CEL Code Is P0152
Mar 22, 2015
I have a 2009 Jeep Grand Cherokee. Engine is running rough. Check engine light comes on. Code is P0152. The code is defined as high voltage on the front o2 sensor (bank 2). I hooked up the scanner again and checked the voltages. Both O2 sensors on bank 2 are never making it above 0.1V. That seems to contradict what the DTC is telling me. Is that somehow related to the fact that it is not going into closed loop? I'm a little confused.
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After I start up and drive my jeep around town and then shut the engin off. Then I get back inside the jeep, start it up the engin idels rough. Some times the engin light comes on. I had a coil pack installed and still the same symptoms. What do you think?
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I currently have a 1997 jeep grand cherokee that I seems to die on me. I will charge the battery to 100 percent and its actually a good battery. The vehicle will run fine and then out of nowhere it wont start. I throw the battery jump box on it and it starts. I was thinking that something has been obviously drawing power from the battery. What it could be?
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I have 1996 grand Cherokee with 190,000 miles on it. A few weeks ago it stopped running while going up hill.It restarted after 15 minutes and ran for 2 minutes and it did that for few times till I decided to get it towed. Then my mechanic looked on it a few times and finally called me that it would run in second gear and he did not know what is exactly wrong with it. It could be driven home in 2nd gear without any issues.
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about 2 years ago, my 99 cherokee would start acting up at about 1/4 of a tank of gas...i would hit the throttle and it would lose all power like it wasn't getting any gas, it wouldn't stall out, but as soon as i would let off the throttle it would go back to running normal..... i filled the tank and it ran fine again.... i don't drive it much i've only put maybe 3000 miles on it since then, and now it's doing the same thing at half a tank now.... it even stalled out a couple times while idling..... do i need a fuel pump? a coil maybe? it usually runs great in the mornings when it's cold.... but when it gets hot out in the afternoon it starts doing it, or if its been running for a while....
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I have recently cleaned my throttle body and still have a rough idle. The rough idle is intermittent and especially occurs when I am in park and then hold on the brake and switch to reverse or forward without pressing the accelerator down and let it sit for a second. When it happens, it is usually so rough it wants to just stall out if I don't give it some gas.
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My 96 cherokee 4.o is having trouble. the motor is cranking but will not stay running unless i am pouring gas directly into the butterfly valve. it runs great while i am pouring gas into it, but it sputters out and dies once i stop. i checked to pressure in the fuel rail and gas will come out of the valve however the pressure gauge doesn't have any response. it feels like the fuel pump.
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Pretty soon this thing's gonna have ALL new parts and STILL running rough! The Jeep has about 40K on a Jasper motor, 175K on everything else. I was experiencing starting issues (crank for 20-30 seconds), and noticed a P0171 code on my odometer (O2 sensor?) so off to my mechanic. He replaced two O2 sensors, no change. New code read MAP sensor, replaced, no change.
Finally, changed Fuel Pump in tank (Fuel filter was changed 2 months ago), still no change. I tried starting it tonight by turning the key 5-10 sec. to prime gas, started but still rough at idle. Runs strong above idle 1500-2000RPM. Mechanic can't check fuel pressure at rails? for some reason. My next thoughts were spark plugs and vacuum lines...
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I am about to begin servicing my new/old jeep. I am unfamiliar with fuel inj.
it is beginning to run a bit rough idling in drive with brake applied. It is beginning to start less easily, turning over longer before firing...
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1998 Jeep Cherokee sport ... My mechanic tells me that my #1 fuel injector is always spraying and that that is why the jeep runs rough. This is after he already told me that my injectors were clogged and needed to be replaced (which he did). When the car is idling for a while, the exhaust really begins to smell like gas, so this seems to make some sense to me, unlike his previous diagnosis. But now he is telling me that I need to replace the computer to fix this problem.
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Check engine light had come on, the car was running rough at idle and it would crank hard. So I threw my code scanner on it only to find out it wouldn't link. Drove it to O'Riley's and had them pull the codes. It ran rough and had next to no power on the way there. O'Riley's pulled the codes and we got a P0300 (random multiple misfire), P0301 (cylinder 1 misfire), P0302 (cylinder 2 misfire), and a P0496 (EVAP emissions system high purge flow). So once I got it back to the house, she told me that she had the codes pulled once before and that they told her it could be her gas cap so she replaced it. She also stated that she had replaced the plugs about 3 months ago.
So with new gas cap and new plugs, and these codes, I did a bit of research and come to the conclusion that it'd replace the purge solenoid. The solenoid was making a pretty loud ticking noise and when I pulled it off, it rattled so I figured that was the fix. Pulled her plugs and you can clearly see that cylinder 1 was running VERY lean and cylinder 2 was a little richer but still too lean. Plugged the plugs back into coils and laid them on exhausted. Turned the car over and we had spark. Lead me to think the misfire had something to do with the P0496 EVAP code. Put everything back together and erased the codes. Gave the car back to her and told her to let me know if the light came back on. That was Wednesday last week. Sunday she told me the light came back on and the only code that came up was the P0496 again. When I gave it back to heron Wednesday, it would still crank hard but would start.
Battery is new and checked good, alternator is pulling about 14v and checked good and the starter checked good. My dilemma is the code and the hard crank. She told me that it only cranked hard for her once so I am assuming that has gone away but we're still left with the P0496. I am not 100% sure as to how this system operates but I understand it for the most part. She told me that she had just put gas in it before the light came on. Not sure how much time had elapsed after filling it and the light coming on but I do know she put gas in it. If it's a high purge flow, that makes me think there may be a leak in the system but I'm not sure where to go from here without throwing a bunch of parts and money at it.
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About a week ago I purchased a new K&N air filter for my '09 GLI (6spd stick & all factory options with 55,000k on the odometer). Outwardly the vehicle seemed to run better (although a new clean air filter of any type will make a vehicle run better) however, 2 days later I noticed that the engine seems to chug a little when it was cold. Not missing like a plug wire off but a chug where it surges forward then holds back continually until the engine warms up. This persists today. I've also noticed a little bit of a rough idle. I've re-inspected my installation and nothing seems to have come loose and the filter fits perfectly.
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My wife's 2002 Jeep GC has just started having the problem of stalling at speed. Happens without warning and will start back up with out any signs of trouble. No CEL. Car has a 6 cylinder with 130k miles and is well maintained. Have been reading around this forum and have seen a few people post similar issues. I will look at the connection at the ECU tomorrow. Is this a common area of trouble?
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I own a 2001 Jeep Cherokee with 104,000+ miles. It runs great and doesn't have any issues. However, i started it up this morning and the check engine light came on. Should this be concerning? I haven't done any real maintenance on it since it runs so well. And i guess that's my other question - what should i do to the Jeep to keep it running for another 100,000+ miles? Spark plugs? Timing belt??
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My Jeep check engine light comes on man said it was a EVAC problem...is this a multiple sensor issue? yes I checked the gas cap
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2015 Jeep Cherokee 2.4 engine. Engine is very noisy at idle. Not noticeable when driving. It has variable valve timing or valve lift. I also has a big black hat on the engine, I wonder if that is supposed to quiet the engine some, if so it isn't working.
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In the last month, my car has had an awful time starting on 2 different occasions. The first time it ran really rough for about 1 minute then was ok. The second time was the same but the engine light came on. Took it to an out of town dealer and he said it showed a misfire code but could never find anything else and all looked OK. Spark plugs?
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1999 Jeep Grand Cherokee 4.0. Check engine light will not go out. Took to Autozone , Orileys ,and Jeep Dealer. No codes found. Replaced cooling fan relay, when light first came on. Everything works fine now. Have tried myself to shut light off, disconnect batt. cables 10 min, 30 min. and other methods, no luck , still, on ? I have even traced the cooling fan relay wire to PCM, all OK.
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Engine shutdown then starts after a few minutes....
Jeep cherokee 4.8L 2000 .....
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For three years now my 2001 Jeep Grand Cherokee Laredo will whistle. Usually when the engine is cold. When the vehicle is idling in the driveway or at stoplights, whenever I take my foot off the accelerator it will whistle too. The only time it won't whistle is when the gas pedal is being pressed. I've had it to a number of different shops to be serviced but once the car is inside or the engine is warmed it will never whistle for the mechanic looking at the vehicle. I've been told that it could be related to the IAC motor.
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Just started getting a p0300 random misfire code on the durango a couple days ago. pretty sure it isn't moisture related since it started on a nice sunny day. it was running pretty rough so it was obvious that it was misfiring. I changed the plugs since it was about time anyway, and they needed it and I cleared the codes. new plugs (put in the oem champion copper plugs) didn't make the problem go away. The engine still ran rough and the code came back. 2 of the plugs looked like they may have been fouling a little bit. they were a fair bit blacker than the rest of the plugs. I went ahead and changed the coils on those two cylinders and reset the codes again. Still runs rough and the p0300 came back. where do I go from here? I am not getting any specific cylinder codes so it makes sense to me that it isn't one or two cylinders not getting spark. 2003 durango 4.7 ....
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