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Come along with Eric O. at SMA as he has a look at this 2001 Jeep Grand Cherokee with the I6 4.0 that was towed in with a crank, no start condition. It didn't take long to figure out this common problem and solve the infamous P0320 crank sensor code.
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49 thoughts on “Jeep cherokee 4.0 – crank / no start”
  1. Avataaar/Circle Created with python_avatars Robert Davis says:

    I've got a wrangler down rite now with the same issue but I took the sensor out and tested it and it read good I guess it my cam sensor

  2. Avataaar/Circle Created with python_avatars atonicassassin says:

    I doubt you'll reply but. My battery died 2 days ago when it was at least -27°c (-16.6°f) and its cranking and sounds like it's trying to fire but it just won't fire up, it's getting lots of gas and it should be getting spart (I'd check if there wasn't almost a foot of snow on the ground and more falling) what could be the problem now. It's a 1998 jeep grand cherokee limited 4.0L

  3. Avataaar/Circle Created with python_avatars John Smith says:

    My 99 cherokee had the cam sensor quit right in front of a local shop. The dude wasnt sure if it was a cam or crank sensor, it never threw a code, just no voltage at all from cam sensor. Gonna have him do it Tuesday I guess, To get it home I reset the computer. pulled neg cable for a few minutes put it back on and it fired right up.

  4. Avataaar/Circle Created with python_avatars Jack Matheney says:

    Hey bud good afternoon so I have a 2000 Jeep Grand Cherokee and it's doing the exact same thing cranks but no start it was running when we parked it for a while this is what we got so I turn the key three times and I got the same code you did p0320 so would it be safe to say to go ahead and purchase and replace the crank sensor I'm kind of broke so I can't afford to be buying all kinds of parts just looking for your opinion thank you

  5. Avataaar/Circle Created with python_avatars GeneralProjectsChannel says:

    P1391 is the code I get on my 01 cherokee xj 4.0. what would that be?

  6. Avataaar/Circle Created with python_avatars max webster says:

    This was 5 years ago. Has the quality improved any???? (Rhetorically).

  7. Avataaar/Circle Created with python_avatars Commander Stud says:

    At least he has a check engine light… mine doesn’t even have that.

  8. Avataaar/Circle Created with python_avatars Tyler Nutter says:

    What if the fuel pump doesn’t engage?

  9. Avataaar/Circle Created with python_avatars paul wilson says:

    .
    Mojo …
    .

  10. Avataaar/Circle Created with python_avatars Olschool says:

    China Virus

  11. Avataaar/Circle Created with python_avatars Debra Blocker says:

    Hi boo

  12. Avataaar/Circle Created with python_avatars G Zuk says:

    Come on Mr. O. Your pretty down on BWD. They're not broken when delivered, they break 2-3 days after the warranty expires.

  13. Avataaar/Circle Created with python_avatars Davey T says:

    Got a 2011 GC right now. FP works. No codes. Tow truck en route!

  14. Avataaar/Circle Created with python_avatars A A says:

    Mopar, Bosch, nkg ntk , denso or standard , in that order are the best parts

  15. Avataaar/Circle Created with python_avatars Mark boza says:

    i have a 97 tj wrangler that has a crank but no start issue,i have 5 volts going to coil and cam sensor under the distibutor, but i have no spark and my fuel pump keeps running, with the key on and cranking over the pump should stop right ???, thi king it might be the crank sensor,ill do the v test and see what that brings me, would a bad crank sensor cause the fuel pump to keep running??.

  16. Avataaar/Circle Created with python_avatars Bob C says:

    Good video.

  17. Avataaar/Circle Created with python_avatars sebastian guerrero says:

    Ok could someone help me I've been trying to get my 1987 Wagoneer started but it wont crank i think it either needs a thermostat or a starter ?

  18. Avataaar/Circle Created with python_avatars Tj Turner says:

    Broken When Developed sounds better

  19. Avataaar/Circle Created with python_avatars Bob Flannagan says:

    Cool~!

  20. Avataaar/Circle Created with python_avatars Slim Sady2 says:

    Have you ever dealt with a 4.0 P1489 & P1490 on a WJ along with a no crank/no start?

  21. Avataaar/Circle Created with python_avatars the do it myself channel says:

    I found it is a lot easier to remove the gas pedal then the carpet cut an hole in the floor pan

  22. Avataaar/Circle Created with python_avatars William Mason says:

    The other guys are not as good to watch and listen to my wife said you sound a lot like me with the junk parts not fitting or you have to custom fit the parts

  23. Avataaar/Circle Created with python_avatars alsteven44 says:

    Forexample if the FP, FP relay, ASD relay are good & it will not start chances are this ck sensor is bad

  24. Avataaar/Circle Created with python_avatars Evan Withers says:

    I said a lot of naughty words !!hahahaha

  25. Avataaar/Circle Created with python_avatars mike kowalski says:

    Great video

  26. Avataaar/Circle Created with python_avatars Orville Vincent says:

    I believe south of here it is pronounced Heep

  27. Avataaar/Circle Created with python_avatars Alec Pointer says:

    What if I got no code, but it does the same thing

  28. Avataaar/Circle Created with python_avatars Anthony W. says:

    had a 1994 jeep GC and i kept a spare cps in the glove box i used to lower the transmission cross member just before the bolts come out and then you can get the cps out much easier, first time i went to change it i though my goodness this thing is so long it was hitting the floorboard and no way to get it out so i thought about a sledge hammer and a blunt punch to make an indent but there was a line in the way then i figured out to loosen the bolts on the transmission cross member to get just enough room for it to slide out, poor design for a part that is a common problem in jeeps. i owned that jeep long enough i was a pro at changing them out.

  29. Avataaar/Circle Created with python_avatars TejasToolMan says:

    good stuff thanks, this helped me fix the nephews 01 grand cherokee. that no start monster hidden down in the safety switch wiring

  30. Avataaar/Circle Created with python_avatars Michael Angelos says:

    I have a 96 ZJ and my hood struts are not wasted.

  31. Avataaar/Circle Created with python_avatars Knuckle Busters DIY says:

    The seat on my New Harley says made in China..Made me sick.
    .

  32. Avataaar/Circle Created with python_avatars A A says:

    Its the wires from the pcm crank starter oil coils fuel pump gages and fuel injectors are all connected to the same wire move it around the whole thing in sections you will hear fuel pump.and a click look at you gages all well place key dont crank to the gauges come back three times then crank should start on you make the to replace some wires may be bent and put wrapping. With anti flammable material and tie off in place.

  33. Avataaar/Circle Created with python_avatars David Gutierrez says:

    EXCELLENT

  34. Avataaar/Circle Created with python_avatars Jesse Keppley says:

    Hi I am in need of help I have a 2004 jeep grand cherokee laredo 4.0 was having starting issues and dieing out one day with death shake. Believe it was fuel pump. Replaced it workd for a day and half. Then started no crank no start up thing so followed that path with crank sensor started cranking but no start replaced asd relay same issue still. Replaced started same issue. Replaced cam sensor same issue. had friend helping today did see that fuel pressure is good. Just cranks and cranks still.

  35. Avataaar/Circle Created with python_avatars Albert's Auto Diagnostics LLC says:

    I'm working on a 2006 5.7 grand Cherokee and with key on engine off every relay starts clicking like crazy and the engine will not crank when I pull the ASD relay out all they clicking stops and if i pull the first connector out of the pcm all the clicking stops as well its also intermittent all day today relays been clicking and no start but yesterday started every time no issues and of course no codes are appearing to give me direction any clue where I should start im so lost

  36. Avataaar/Circle Created with python_avatars Ak 47 says:

    what else could cause the rpm gauge to not work

  37. Avataaar/Circle Created with python_avatars Eric Harrison says:

    Jeep/Junk Electronics Everywhere Possible. I love all of mine but they all have one or more electrical issues.

  38. Avataaar/Circle Created with python_avatars Tim Postell says:

    I changed mine and still want start I've put new fuel pump in put new coils still nothing I need help

  39. Avataaar/Circle Created with python_avatars JP says:

    And now we have good ole Chinese made virus 🦠

  40. Avataaar/Circle Created with python_avatars Horacio Gaytan says:

    wow my 2000 jeep Cherokee laredo only has 89k miles and its having this same problem

  41. Avataaar/Circle Created with python_avatars thefailmaster357 says:

    I hope you see this lol I have a 91 Jeep Cherokee Laredo and it will crank but not start I changed the sensor and still nothing

  42. Avataaar/Circle Created with python_avatars Shawn L says:

    so what does it mean if i still get a return and voltage from the crank sensor but i dont hear anything kick on when i plug it in???

  43. Avataaar/Circle Created with python_avatars Carlos Mer says:

    Mine4.0 grand cherokee work like babe after 5 years. 1 day start and shut off them I put cam and crankshaft sensor new computer and same things .I quit never find the problem 3 month ago no idea I bring to mechanic shop and this people no fix problems no good mechanic in ct.

  44. Avataaar/Circle Created with python_avatars TEKNO says:

    When i was watching u measuring 5v i say turn key on turn key on lol

  45. Avataaar/Circle Created with python_avatars Jesus Parra says:

    Thanku good video

  46. Avataaar/Circle Created with python_avatars David Voinier says:

    When it comes to electronic sensors, you're better off using ONLY MOPAR! Do it once and forget about it.

  47. Avataaar/Circle Created with python_avatars PRTTYBRNEYZ says:

    Why can't there be good genuine mechanics that actually do their jobs and find actual problem and not bullshit you where i live,damn!

  48. Avataaar/Circle Created with python_avatars Mr Static101 says:

    This was a great video man. Subscribed!