Jeep 4.0L Crank Position Sensor Replacement

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This week we are back to work on the 1999 Jeep Cherokee XJ. Today I will be fixing a common 4.0L failure. Today we will be replacing engine crank position sensor. This Job will be identical to all Jeep 4.0L and similar to the 2.5L found in Wranglers, Grand Cherokees and Cherokees. Today I will show you how to do the whole job from start to finish. If you have any questions that the video does not cover, make sure to leave them below.
OutJeeping Merch Store: outjeeping.com
All Parts listed below are for a 1999 Jeep Cherokee 4.0L model year. Your year and engine design may vary.
1999 Jeep 4.0L CPS Mopar Sensor: 56027866AC
Music Credit:
The Wrong Way by Silent Partner
Pickup Truck by Silent Partner

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7 сен 2023

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Комментарии : 74

@1968JaguarXKE День назад

Thank You, I replaced my CPS with a cheep on and only got 3 tears out of it. Great explenation

@chrismcca 9 месяцев назад

That's the best view of the sensor in the engine bay i've seen anyone post! Thanks for fighting through.

@michaelg6890 9 месяцев назад

You posted this just in time. Currently in the tow truck headed home. Thank you

@Cantinatollo1 9 месяцев назад

Young man, you rock, ROCK! Thank you for sharing!

@chrisminutello629 23 дня назад

Always the best how to vids

@mrkultra1655 3 месяца назад

Loving that tape on the u-joint trick, never seen that one before. Thanks,

@gregj.gotham4402 7 месяцев назад

Great video on changing that crank sensor.

@carlt8188 9 месяцев назад

When I replaced mine on my 99 XJ, I had the same problem as I did before, the cranking without starting. I ended up taking it to my neighborhood mechanic who told me they made two different ones for a 99 XJ. Not sure if that's true or not. The one I picked up at my local Autozone gave me one that had a slightly shorter cord. If anyone is replacing theirs, I'd recommend you take the one you have on your Jeep and take it in with you when you buy the new one and make sure they match.

@k9under 9 месяцев назад

The same is true for front brake rotors for the 1999 XJ their are two sizes.

@dondercole4249 9 месяцев назад

Great video! Sound advice you gave for diagnosing the issue and sound advice using OEM sensor one and done!

@seancaron3323 8 месяцев назад

About to do mine. Thanks for the vid! My symptoms are it stalhs when hot and has no spark until cooled off, no code.

@danhambrick6331 9 месяцев назад

Good call on the Mopar replacement.I tried a cheaper one on my '01XJ and it didn't run good at all, ordered a Mopar sensor and put it in and it ran like a champ.I always use oem sensors from now on...

@k9under 9 месяцев назад

Awesome videos i also have that same 99 XJ my crank sensor went bad about six month ago but my hand was to big to get it from top had to get on ground.

@Lucky-ou4vz 29 дней назад

Great Video Thanks

@mcguireskaratetheartofsurv1942 3 месяца назад

Nice, good info

@1949ala 3 месяца назад

Great job thanks

@Amarillobymorning777 7 месяцев назад

I made a access hole from inside, next to the gas pedal . Be careful cus a gasolina line pass right there . But for me was the easy way. 01 grand Cherokee Laredo Tx .

@bigben1995 4 месяца назад

great video. thanks!

@GKirkland1 9 месяцев назад

Have 97 Grand Cherokee w/110k. Just started cutting out while driving. Sometimes for few seconds, sometimes longer and requires restart. How can I diagnose it’s the CPS? Great channel btw. Have picked up a lot so far.

@JBenedict02 9 месяцев назад

I ended up replacing mine thinking it was the cause to a crank no start issue I was having when it was instead the ballast resistor under the hood(84-93 part). That was a fun realization...

@artardFTW 9 месяцев назад

renix?? typically with a bad ballast resistor the jeep will start up on crank but as soon as you return the key to 'run' it will die out

@JBenedict02 9 месяцев назад

@@artardFTW Mine is a 93 so not renix. I've just had bad luck with these things lol. Even my new one went out on me so I just connected the wires together and bypassed the thing.

@artardFTW 9 месяцев назад

@@JBenedict02 yea for my 89 I kept an inch of wire with 2 female spades crimped on as a bypass but my 87 doesn't have the resistor

@dealinwithit1 Месяц назад

Resistor saves the fuel pump , I went with a Crown decent product

@JBenedict02 Месяц назад

@@dealinwithit1 @dealinwithit1 That's what I went with and it went out within 6 months so I just bypassed it and haven't had any issues for the past two years.

@heinzstucki3069 7 месяцев назад

Sehr gutes Vidio wie immer, danke weiter so.Viele Grüsse aus der Schweiz Heinz (XJ 1999 Endeavor Sport)

@pauldolan1493 9 месяцев назад

Thanks for your videos. I’m newer to jeeping and have a pretty completely built 96 XJ. Very first part I added to my “must have” box was a CPS on the advice of others with the 4.0. I was told 10mm swivel head. Gonna climb under later today and verify mine. I carry too many tools but I love actually getting it right first time on a project

@OutJeeping 9 месяцев назад

Yeah the size should be 7/16" or 11mm, but it may have changed throughout the years.

@QalAdventures 8 месяцев назад

My 90 used 11mm

@ghrohrs2020 5 месяцев назад

I love you, man! My 2000 Cherokee Classic just died. An amateur Jeeper suspected it was this crank sensor and told me they're impossible to get to. You just disproved that with your determination and dexterity. I had believed my Jeep was dead and lost forever. Now I have great hope it can be recovered. THANK YOU!

@cristobalrodriguez7957 4 месяца назад

Does anyone know if Can you relocate the new one and if it needs to be grounded out

@seancaron3323 8 месяцев назад

Watching this.. I wonder how many people have dropped a bolt into the bell housing 😂😂😂

@Vivianauxito 8 месяцев назад

Is there any possibility to invite you to do a review for our pod lights?

@freeidaho-videos 5 месяцев назад

Super clean engine bay! Salute! ! ! I have watched a few of these videos by now, since my 99 XJ went from intermittent to hard fail. No one seems to address this, but how high did you lift your jeep off the ground to get a position where you could sit and work? Or was it on a lift? Thank you for the answer and for great videos. Subscribed.

@OutJeeping 4 месяца назад

Mine has just a 3" suspension lift so I didn't need to jack up the Jeep at all.

@freeidaho-videos 4 месяца назад

@@OutJeeping Thank you Sir!

@josephsmith5367 3 месяца назад

Just changed mine on a 2000 cherokee sport, but still not starting. Gonna replace spark plugs and see if that helps

@OutJeeping 3 месяца назад

Check for spark first. It might be a coil if you still have no spark.

@kenc.9067 2 месяца назад

Is there any way to test the CPS to know if its bad? My brother has a 99 Cherokee, cranks, no start. Replaced cap, rotor, wires, plugs, still no luck.

@OutJeeping 2 месяца назад

There is a way to check with a multimeter. If you look at some forums where they tell you what the resistance should be. But that's to tell if it's totally bad. If it has an intermittent issue like mine, it's pretty much impossible to test if it's bad.

@0-01 9 месяцев назад

Hardest thing in jeep xj. I had bad days with it lost bolt on that hole lol > Ther is no cover in my jeep 1999 so

@davidmccomas7094 2 месяца назад

where do you find the OE mopar sensor ? every where i have looked are out of stock and dealer says discontinued ?

@OutJeeping 2 месяца назад

Sometimes Rockauto or Amazon has them otherwise I got mine from the dealer.

@charlespayne2002 4 месяца назад

How do you get your hands in there bro? I can't even get close. But here's a new tip. Superglue the bolt to the socket when replacing them. Helps a ton!

@OutJeeping 3 месяца назад

Good tip or electrical tap holding them together. It's a tight squeeze for your hands forsure.

@charlespayne2002 3 месяца назад

What would you recommend if the bolt heads are stripped ?

@dealinwithit1 Месяц назад

Slows the pump during idle and cruise , saves wear on pump, if you’re Jeep is breaking the resistor you’re having a voltage or ground problem

@patriot72 7 месяцев назад

Is your jeep an automatic Austin? I have an automatic and want to make sure I ask for the correct part number.

@OutJeeping 7 месяцев назад

Yes mine is an automatic transmission.

@user-fd8kk2lv9j 7 месяцев назад

I need some help i got the bolt.off the crankshaft position sensor but the senor doesn't want to come out help please

@kowen8121 7 месяцев назад

There are two bolts to remove...

@dealinwithit1 Месяц назад

Good vid I called dealership for my 93 and mopar no longer makes it for that year, so I went with a NTK made in USA part # EH0245

@kodiak7438 4 месяца назад

Excellent video ! I need your help . I have a 1993 jeep Cherokee xj my issue : the only way that I can start my jeep is #1 turn key to on #2 wait one to 20 minutes to hear a tick,tick,tick at the fuse box near the battery then that stops#3 immediately the fuel pump activates and now I can start it . The colder outside it is the longer this cycle takes. It always cranks otherwise.

@OutJeeping 4 месяца назад

It sounds like your fuel pump relay in the fuse box needs to be replaced.

@kodiak7438 4 месяца назад

@@OutJeeping hello , I put in a new one same things happens. Although my high beams don’t work maybe there is a short but Dext said that’s not possible with this year.

@OutJeeping 4 месяца назад

@kodiak7438 Have you checked all your grounds and make sure they have a good connection?

@kodiak7438 4 месяца назад

@@OutJeeping I have an except for that one coming off the valve cover near firewall , I see no easy way to get to it.

@kodiak7438 4 месяца назад

@@OutJeeping I’m still trouble shooting this , I have constant voltage to relays but on the ASD relay terminal #87 has the constant volts, on that same relay it seems that terminal #86 eventually gets voltage and then the fuel pump powers up. I’m not sure why there is a delay? I’ve read others have had same issue and said it was a soldering issue at ECM . The colder the temperature outside the longer it takes for this cycle to start.

@josezarco7774 4 месяца назад

Hey, so I was driving and my jeep just died on me and won’t start I replaced the sensor and started right up but when I started driving it would want to die on me so I needed to keep it under 2000 rpm’s other wise it just wanted to shut off and knowing can’t even go into reverse, what do you think?

@OutJeeping 4 месяца назад

What brand sensor did you replace it with?

@josezarco7774 4 месяца назад

@@OutJeeping is an Autozone sensor where I live at there is no other brand better than that and I needed it ASAP