Proper Way to Replace CRANKSHAFT Position Sensor on 1999-2004 Jeep Grand Cherokee WJ 4.0

So my Crankshaft Position Sensor went out on my Jeep Again! Big Tip: Don't buy cheap CPS Sensors and Replace the Cam Shaft Position Sensor at the same time. The Cam shaft sensor is easy to replace.
If you are going to replace these sensors use Mopar sensors. They might be hard to find so I Used Standard from oriellys since from my research they are close to OEM Spec. The Crankshaft sensor is hard to remove from the hole and put back in but it is possible!
Take the air intake off to give yourself more room and make sure to get a socket set that swivels! This will make Replacing the Crankshaft Position Sensor on a 4.0 6 cylinder Jeep Grand Cherokee WJ Easier!
These are the parts and tool I recommend.
Crankshaft Sensor : Mopar amzn.to/3cDvLOx
Brand I Used : ebay.us/wOJyj1
Swivel Socket: amzn.to/3z20pZh
Socket Extension: amzn.to/3zqDVCx
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[@bouterres]

Good tutorial. It's an 11mm socket to remove the sensor bolt. Thanks for the vid!

[@DaveyDave1050]

2000 buick park avenue intermittent stalling on the freeway, irratic rpms and overall rough idle. I changed the crankshaft position sensor and camshaft position sensors at the same time also. Engine is performing excellent now!!

[@joshuaboehm6419]

Tackling this in about 20 min. I definitely needed this video, cause it looks almost impossible to get to from the bottom.

[@MrPanga1921]

Did it fix your jeep from stalling and not starting every time??

[@247Dalvarez]

I cant even tell you how much your video helped me out! Especially laying on top of the motor to remove the M/F'n sensor. Thanks Najar!

[@lennywebb274]

I used this technique and took about 30 minutes. It took longer to take apart than it did to do actual job. I made sure to tie sensor to new connector and pulled it through back of motor to motor connector. Piece of cake.

[@jonathangomez-vv2dh]

The 3 key turn to get a code worked!! I was not getting a check engine light. Thank you!! 🙏🏼

[@NajarOffroad]

💪

[@DP-bc3xl]

It seems like ever since I've been watching your channel I get that commercial "Looking For A New Jeep?"! Anybody else? lol. You guys do bust some ass...DP

[@NajarOffroad]

I don’t want a new Jeep! I like these filled with problems makes it more fun😂 jk a Trackhawk would be a dream though💪

[@naturalrebel6301]

Great job on redoing the video! If y’all do this watch out for dropping stuff in your throttle body with that all open that would suck to drop something in their

[@NajarOffroad]

Yea 100% I should have said that😂

[@Psxmoe]

I've done mine Twice, First time it died for no reason after getting gas, just died after pulling out of the station. OG sensor had 185k miles on it. Replaced with a MOPAR sensor, had no problems until stupid packrats nicked one of the wires. I couldn't wait for another $100 MOPAR sensor so i went with a Standard Motor Products Sensor as well. Standard Motor Products PC176 is the part number, Available at O'Riellys with a lifetime warranty. It's been installed since July 5th and i haven't had any issues. As for installing, I've always gone the hard way with using 3 feet in extensions going at it from behind the Trans cross member to remove/reinstall the bolt, removing the air breather assembly is a must for reaching between the engine and firewall and pulling the old one out/pushing the new one in. This is one part you do not want to cheap out on if you can. It's a pain. NAJAR as usual makes it look easy haha

[@NajarOffroad]

It honestly wasn’t bad😂 the hard part is pulling the sensor out it seems like it always want to go back in the hole😂 I tried to check from the bottom but seemed like a lot of things in the way so I did it from the inside

[@Psxmoe]

@@NajarOffroad True! I failed to consider that I have a 2wd WJ so 4wd may be a little more difficult going that route

[@toddr1124]

I started out by following this, but (at least in my case) going at it from the inside was a frustrating waste of time. With a couple long extensions, I was able to directly get at the bolt from underneath, and by reaching up next to the rear cat I could easily swap out the sensor itself (after disconnecting the plug from the top and pulling the plug over to the driver'sside). I should note that I have 6.5" of lift, so working under there is easier than it might be on other rigs. Getting the screw back in for the vent piece inside was insanely aggravating and in itself made that method something I would not recommend. But it runs now, so... woohoo! 😁

[@bulldiso]

😅😅

[@Bluewj04]

I pulled capet back cut floor was done in about ten min

[@randybonner9870]

99 Jeep Cherokee sport 4.0. Crank shaft position sensor replacement is so much easier done from the bottom and i promise that you have plenty of room and you'll be ina hellava more comfortable position . Cold engine About 1 1/2" length of 3/8 extensions 11mm skt ( Very IMPORTANT)- To insure the bolt doesn't fall out of the skt when reinstalling - pack thick grease in the skt or place a piece of paper towel or tape over the skt and then force the bolt into the skt . That latter is what I prefer. It holds the bolt tight when your looking for some alignment and also keep the bolt from falling into the bellhousing. It an be retrieved with a magnet .

[@randybonner9870]

Also a swivel head is very helpful. If the swivel head moves too freely , try to cram a piece of tape in the moving joints or litterly a round of electrical tape Around the swivel. Some of you out there know that a swivel that's too free can be jst as much a headache .

[@jrfsailing07]

Thank you for a great video!!

[@danwall5010]

I haven't had this issue with either of my WJs but I appreciate the knowledge for if I ever do have this issue!!! You rock man I'll be visiting your merch store soon!

[@NajarOffroad]

Lucky! My 2nd time😂

[@steveparris]

Laser pointer....... makes it a lot easier to point out items

[@chump2690]

'04 4.7 Had an issue with erratic rpm at idle which lead to dying. For me it was the Throttle Position Sensor. Had replaced with aftermarket months prior, but after replacing with oem all good. I had no codes though.

[@josephwilday9711]

Great video. How is the Standard sensor working?

[@NajarOffroad]

Still working

[@MatthewAlley-oz5jn]

TY very much for being thorough and I got it I appreciate it

[@bryantrieken6958]

I spent more time trying it this way than it actually took to fully replace it from the bottom. I had to drop the crossmember but it was quick

[@fredpatton4055]

I’ve done it both ways on my 2001 grand jeep Cherokee. Definitely eaiser to use the inside access under carpet. You still need a swivel but not much angle. It’s a 11mm bolt that holds the sensor on. If you have long skinny arms maybe you could access underneath easier, but not me! 😀

[@hachi-rokuperformancegroup3987]

My forearms don't fit either so looks like this is the better option

[@damienfougere1275]

Like wise. I almost became one with the jeep 😂

[@TreyKirk-gi8ym]

Dude thank you so much for the size lol I'm literally on the side of the road doing this by myself

[@diekatzefliegt]

How did u get to the Phillips head holding in the climate control tube

[@fredpatton4055]

@@diekatzefliegt sorry it’s been to long don’t remember, but I don’t remember having much trouble there. Maybe it was a short screwdriver.

[@user-xf9uc8nt7y]

Went in from the bottom. 11mm socket on a swivel, and a 1.5 foot 1/4" extension. It is very tight. If you do not have a lift or a pit, I would go from the top.

[@cocovega7597]

Thank you I’m literally going through this right now

[@diekatzefliegt]

How did u get the stupid climate control tube out

[@matthew7972]

My jeeps symptom: Start the jeep up, drive and within the first stop it stalls. I start it back up and never does it again. Also seems like if I let the jeep “warm up” for awhile it won’t stall at the first stop. Does this sound like the crank shaft position sensor

[@ATEMOFFROAD]

I’m having issues with the power steering pressure switch on our red TJ, maybe Ill try and see if they have it in the standard brand. Cool video

[@NajarOffroad]

For sure! From what I read good brand and oriellys stocks it and with warranty I believe lifetime

[@Jeremy-dd2jj]

Thanks a ton guys.

[@happyhotspring3501]

Thanks, Najar! I really appreciate and like your method of presentation and the way you show what needs to be done. I am gong to be removing the 42RE Transmission from my 03' WJ with 4.0 to have it rebuilt, (found a piece of broken snap ring in pan when changing fluid). It has 180,000 miles on it, so a complete transmission rebuild is what I decided to have done. Out of curiosity, I have 3 questions: In my Service Manual it shows a "Wire Shield" that goes between the CPS and the bolt; 1- Are you aware of that "Wire Shield" part?; 2- Did yours have that part?: 3- Do you know the part# for just the Mopar stick-on spacer for the CPS or what the thickness of the stick-on spacer is?

[@TTheo-cb4jz]

What were the symptoms? My 2001 is starting to randomly shut off. But I think it's the ignition. When I pull over and cycle and wiggle the ignition, it starts right up. Maybe it is still this I hope not.

[@cheddar2353]

Yo bro I’m having a problem with idle what should I check / change

[@johnhill9245]

I need to order a crank sensor and cam sensor for a 2004 Jeep Grand Cherokee Laredo four-by-four

[@mikega]

i am replacing mine today and the sensor is very hard to remove, it has stucked and i am unable to remove it, anyway to have it remove with ease?

[@samirhinds7659]

Can you re use a crankshaft sensor? Like one that was working good on another vehicle?

[@MrSrtman18]

Yo jonathan! Hows this standard brand part working out? I got stalling issue. No check engine, no code w scanner. Did key check and sure enough p0320. Hopefully this goes better than my map lights eh? But, it wasn’t my fault, lights were tight! Im glad u checked for me. Appreciate you Brother! Thanks for everything! -Phil😅

[@NajarOffroad]

The standard is still holding strong💪 I appreciate you letting me know and allowing me to fix the issue👌

[@MrSrtman18]

@@NajarOffroad ok. Napa here has the standard. $60. I think im gonna get er done tomoro! Thanks Bro!

[@ploxplox1109]

Question My mother 2004 jeep 4.0l grand Cherokee will start up fine but when she stop somewhere Jeep will shut off once in a while could this sensor your replacing cause this issue ?

[@NajarOffroad]

Yea probably what is going on

[@gilbertmata7951]

Do you have to relearn the vehicle after replacing crank and camshaft sensors?

[@Maxx_bulls]

I just changed my crank sensor and now I'm getting the anti-theft key light in my car won't start.. Any idea?

[@rakanlambaz8659]

Hey, I have a question… does a 2” rough country lift kit with shocks fit my Quadra Drive Jeep WJ? Looking forward to your response, please

[@diekatzefliegt]

How did you get the climate control tube out

[@adamdaniel01]

Where did you get your front bumper? I’m Looking for my 2001

[@jacobramirez5766]

My sensor is stuck I replaced the other one. there’s not much room to pry it out. It’s breaking and I’m tempted to just tap it back in and say the hell with it. What’s ur advice I’m doing it from the bottom didn’t do it from the inside

[@mrkeith1998]

I just did mine and everything went good, except there was a metal bracket on the crank sensor and It fought me going back on so I left It off. Everything is working, but I'll keep it incase I need it.

[@fredpatton4055]

Left mine off too. Running good so far!

[@mikencrew8885]

Would you happen to know what size the bolt to the crank position sensor is? I went in to change mine the other day and it wasn’t recently there. 🙄🙄🙄I have no idea what size it is. Called the dealer and they are clueless

[@clebdank98]

I second this question

[@mikencrew8885]

I found out it’s 1/4 20. And I got the smallest size length I could.

[@mikencrew8885]

@@clebdank98 I found out it’s 1/4 20 and the shortest length I could get. It worked

[@JuanHernandez-fj6ry]

En español

[@angelvelasquez9479]

Broooo I seen other video n used a masterpro sensor lol How long did this sensor last? Man I should bought standard smh the guy recommended it too

[@NajarOffroad]

It's been good man no issues yet! Change the Cam position sensor to. That one is easy to change out.

[@microtechmachineshop]

i have a key with a slash through it on my dash jeep wont turn over ,anyone have any idea what that symbol means and how to fix it

[@kalessasmith3517]

My Son Have This Also In His Jeep. Can Someone Please Tell Us What This Mean ?

[@microtechmachineshop]

@@kalessasmith3517 I put a new crank case sensor in it problem solved it was a bit of a job tho to do

[@chrissteers6011]

I e been through 4 of them and no luck what brand

[@crazyj4282]

I need to replace both rear u-joints on my WJ 4.0 I don't want greaseable ones. That's all moog makes. Is there a spicer option? If so, I can't find it.

[@Psxmoe]

Rockauto has both the non greasable and greasable spicers

[@merrittmcdowell8675]

Wouldn't it be easier to cut yourself an access panel neatly and reseal it would turn that into a 2 minute job

[@donlum9128]

Exactly, I'm thinking about doing that. Then you can change it out on the trail.

[@merrittmcdowell8675]

@@donlum9128 totally and if you cut it neatly you could use a hinge and a butterfly style clasp like on the back of picture frames

[@sebastiantoney3373]

About to say, dude fin'na bolt up a new crankshaft from the bottom!

[@NajarOffroad]

Haha I tried but to much stuff in the way!

[@michelvilla4358]

Hey man I just have my2004 jeep stalling on me yesterday and a code just pop out after turn the jeep back i got a P0320 is that the same you got the first time you find your crankshaft issue? Please let me know 🙏. I'm also replace the cam sensor a 2 weeks ago tinking that was my problem

[@NajarOffroad]

I didn’t get a code. I would change both the Cam shaft sensor and crank shaft sensor at the same time

[@kerrmartin3498]

I have a 2000 grand Cherokee V8 does a crankshaft sensor need to be relearned??? Also what symptoms where you getting before the new sensor?

[@igotapochahontas]

How does the access panel come up? There's a plug and a gasket on mine. I scraped the gasket up but the plug doesn't have any obvious clip I can see

[@Jacobwafflez]

Pull with all your might

[@CAMR3N420]

My 04' WJ 4.0l has the sensor stuck in so good it just breaking trying to take it apart at this point. Looks like I'm gonna have to pull the transmission you get it out

[@jacobramirez5766]

Literally having the same problem. Above the starter ? I need a suggestion how to get it out it’s stuck like chuck

[@CAMR3N420]

there are two options at that point. you can either cut the sensor flush with the bellhousing then use a punch and hammer to knock it in then remove the inspection plate on the bottom side of the trans to fish it out. The other option and what I ended up doing was just removing the entire engine and refreshing it while it was out with new gaskets. This made easy access to the sensor. The jeep was back on the road in 2 days.@@jacobramirez5766

[@STILLFRIENDSMUSIC]

Could this sensor be my fix? I have a 1999 Cherokee and it's stalling on my after it runs a while - I go to change gears (reverse for example) and it stalls. It won't start back up until it cools off. Any ideas?

[@jeffreyvonessen2241]

Same thing happened to me a couple years ago on my 2004, 4.0. Took it to the Jeep dealer and they diagnosed it as the engine wiring harness, it hasn’t done it since. I was under the impression that it was the CPS as well at first, not sure if you might need a new engine harness as well or if it would fix the problem. It was fairly expensive from the dealer but I would recommended having someone trusted do a diagnosis, electrical problems can be tricky

[@sanealmistry8318]

Have you had any problems with this one

[@AntonF-i1j]

Finding it real hard getting the bolt holding the sensor back in again, keeps falling out and that protective metal cover over the sensor and cable really doesn't want to stay where it should be. Any tips on that?

[@edwardbellus1572]

Use grease or paper or tape to keep bolt in socket. I get better luck using a wobble ended extension in quarter drive but you can use tape to stiffen up the swivel.

[@raululloa6894]

Easier if you just do it from the bottom it’s easier and don’t have to remove anything .

[@NajarOffroad]

Looks like to much stuff in the way for me to do it. I did want to try from the bottom but seemed harder tbh

[@chrisgarage900]

He didn’t try 🤦🏻

[@StinkenLincoln2008]

So i have 2 grand cherokees ones a 2004 and the other is a 2000 and they both have the 4.0l. And they both have the same problem. Cranking and not starting. The guages do not work too. Like they dont do anything. But thats my problem and if someone can help please do

[@kirbytrees127]

Check spark and fuel, crank sensor could be the culprit if they completely fail

[@StinkenLincoln2008]

@kirbytrees127 it doesnt have spark but it does have fuel

[@kirbytrees127]

@@StinkenLincoln2008 test the crank sensor with a voltmeter, put it on ohms, you should get around 65+ ohms of resistance, and swap around the red n black with each terminal till you get a reading. You can check the cam sensor the same way too. Also check your harness, been having issues with loss of cam or crank and turned out my harness is pretty well shot and needs to be rewired and reloomed. It can be something as small as your coil pack not fully plugged in or something as gnarly as a shot out harness, but do the basics and go from there, read codes, turn the key 3 times to on back to back and it should show the codes

[@mikeparanormalauvergne]

Bonjour, merci beaucoup pour ce tuto ça va beaucoup m'aider. J'ai un Jeep grand cherokee wj 4.0 de 1999 et mon capteur pmh (vilbrequin) est HS. Code ODB2 p03020

[@mooxieart]

My tiny hands and arms reach where others can't 😅

[@rafael661kc]

Can anyone help me out … so my driver side headlight is dim and recently started blinking with my blinker and it’s also blinking incredibly fast and I’m getting a message on the little screen on the roof saying my turn signal is on I swapped my headlights and blinker bulbs and the problem is still happening

[@kirbytrees127]

Wiring

[@tytraulich4987]

Does this work on a 98?

[@chrisgarage900]

Yooo this could have been easier if he put a good one from the get go but you live and you learn. P.S. - this is not Chris 😜

[@NajarOffroad]

Haha it lasted 2 years for $30 it is what it is😂

[@Rebelfry]

Why not just get it from underneath

[@maggieloy5365]

The only way to fix a Jeep Grand Cherokee is to install a 700R4 transmission and a distributor and a carburetor.

[@TheMainLead]

700r4 is garbage. You probably have towing mirrors on a 1500

[@charliemaddle5321]

I need some help

[@Mattmazz77]

So you have to feel around with your finger and you'll eventually find the hole?...lmfao. Have a friend help you and eventually you'll get it in the hole...lmfao. Sorry brother but this sounded so dirty and the immature male took over my mind 😅

[@chrisgarage900]

He doesn’t intend to make it 😈 but it happens to the best of us hahah

[@NajarOffroad]

😂 haha

[@cheapers1952]

Why should you replace both sensors Don't you think you should use a lab scope and check and see what the real problem is or is a lab scope too expensive for your taste

[@danielroach6831]

What about the 4.0 bro bc that's what I have n I have the same problem

[@robertgue6323]

This is for the 4.0

[@NajarOffroad]

Correct this is for the 4.0