Question about 2008 Jeep Patriot

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I have a 2007 jeep patriot. It stalled at stop sign started ran rough. Parked came back drove it home ran u- scan code p0017 replaced crank and cam sensors still runs rough changed plugs were bad. I was told timing chains don't go bad on this motor it won't run what can I do to check timing.

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  • Jeep Master
  • 42,190 Answers

Code p0017 refers to crank/ cam oosition sensor bank 1 sensor B -correlation ===causes --wiring--CKP sensor--CMP sensor--mechanical fault.
It also refers to control modules, cooling fan--no signal===causes -- wiring--ECM.
If it has a timing chain then the the advice that it will not be the chain is good. So I suggest checking out the cam/ crank sensors and wiring

Posted on Oct 23, 2013

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Posted on Jan 02, 2017

  • 43 Answers

SOURCE: How to replace Crank sensor?

crank sensor is on top of the bell housing between engine and transmission it will come out without any major disassembly is toward driver side of vehicle can get to it from undernieth when you get your new one look at it will give you a good idea of what to do

Posted on Aug 26, 2009

  • 230 Answers

SOURCE: jeep starts and runs for awhile then shuts off

Hey Mike, it sounds like a problem with the ECM or a wire going to it, if the wires sheath does not look damaged I'd say that it's probably dry joints in the ECU. If you were to take the ECU to an electronic service shop it will likely be a lot cheaper than getting a new unit. I'm not sure what you mean by the federal emmissions ecm i'm in Australia, we don't have those.

Posted on May 25, 2009

dnewcombe1
  • 1564 Answers

SOURCE: rough running

Computers aren't ALWAYS correct. If a code wasn't cleared after the original problem, it will read the same codes off to the diagnostic. I would remove the wire connector to each injector while it's running. If one of them makes no difference THAT is your culprit. Let me know please!

Posted on Jun 27, 2009

  • 6982 Answers

SOURCE: 1994 jeep grand cherokee laredo starting problems

Check to see if the fuel pump is running after it shuts down...could be a relay or the pump itself (overheating internally) Checked the fuel filter yet? Some crank sensors need to be shimmed. If it's too close to the flywheel even though you recently changed it, if it's too close to the wheel it can fail again. May not be the case but worth checking over. Also check the ceramic resistor on the left fender near the master cylinder if you have one. That too can cause problems.

Posted on Dec 27, 2009

Mad Scintist
  • 6 Answers

SOURCE: 1996 Jeep Grand cherokee 4.0 liter runs rough at times.

I Found that the outboard PCM cover screw was shorting out the circuit board.
Short story long: I have a 96 Grand Cherokee 4.0L, 125,000 miles. Several weeks ago, I started to have stalling issues. Hot or cold, dry or wet, first drive of the day or last, it didnt matter. The engine would cut out. It felt like it lost all electricals.
At the time it was showing an ASD relay code. Swapped the ASD and A/C relays. Same problem. I didnt have time to look at it, so I had the dealer go through it. After 2 days and $200, they called and said it was the ASD relay, and that they put in a new one, and its all good. Um, ok, maybe I missed something. Im a trusting soul, but lets see if this fixes it. The next day the problem was back. I went back to the dealer and they basically said, We dont know what it could be, good luck with that. Now my wife knows why I dont go to the dealer. By the way, the old relay tested good.
My turn. Being the methodical aircraft mechanic that I am, I grabbed a multi-meter, contact cleaner, and wiring diagrams. I cleaned connectors, ohmed out wires and sensors, checked for power and grounds. Everything checked good. By now, its showing ASD, crank sensor, and primary ignition codes. Then, with my wife trying to start it, I wiggled the connectors on the PCM. Every time I wiggled the gray C3 connector just right it would run. When I let go, it would die. So I took the connectors apart and tightened up the crimps (I dont recommend doing this without the proper extractors and crimper). Threw it back together and BAM! Same problem. Well, time to bite the bullet and check for bad solder joints on the PCM board. I took the cover off of the PCM and realized that looking through the potting compound is like looking through Guinness Stout. But, I put it back in and hooked it up. It started stronger than ever, and didnt even think about stalling. Yes! I figured that I finally got the connectors sorted out, so I left it over night to cool down. Got up the next morning and it started right up and wouldnt stall even when wiggling the connectors. So I put the cover back on, put the PCM back in, hooked up the connectors, and BAM! It wouldnt start! That was the point when my wife asked, Hows it going? And I, being the methodical aircraft mechanic that I am, said, what the ----? Thats when my wife turned around and went back into the house. While smoking a pack of cigarettes, I thought, Gee, it runs with the cover off, but not with it on. DUH, wonder what it could be? So I backed out the two screws that hold the cover on and BAM! It started right up. Then, while it was running, I tightened the outboard screw and sure enough, it died. Yes! Aircraft mechanics love it when they can make things stop working. I cut the screws (1/4 long, factory screws are 1/2 long Torx head) with a pair of wire cutters, and shes been running great ever since.

Posted on Oct 07, 2010

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