JEEP CHEROKEE 4.0 COMPRESSION TEST, CYLINDER HEALTH, ENGINE SELECTION.

[@bdgackle]

"It sat for two years", "It sat for four years". Thank you for helping me feel a little less bad about my own neglected projects.

[@ProjectDanH]

Thanks for checking in guys! FYI. According to the 2001 XJ Factory Service Manual a healthy 4.0 engine should have compression ranging from 120psi to 150psi and all cylinders should be within 30psi of one a other 👍

[@ProjectDanH]

(827 to 1034kPa)

[@iphone777]

So I just did a compression test on my 2000 xj and got 1: 170 2: 150 3:150 4:175 5:160 6:160. The psi is a little high but they all are within 30 of each other. Mine sounds very similar to that knocky one you showed in this video. I have removed to oil pan to inspect the underside of the motor and taken the head off twice and found no damage. The first time I took the head off I had 2 messed up lifters so I changed all the lifters, push rods, valves and their associated hardware. It ran great for maybe 2 weeks then started knocking and running shitty again. I removed the head the second time to double check I didn’t mess something up. Also there are no CEL codes and I have ruled out the coil by swapping a few coils in. The motor has 130k on it. I am stumped.

[@ProjectDanH]

@@iphone777 I don't know man I wish I could help.. have you tried mixing up your fuel Maybe use 93? I wonder if you had a bad gas issue.

[@trenthelms]

@@iphone777 fwiw, when you said knocking that sounds like what I hear in my 4.0 L. After some research I found a video that the creator found PISTON SLAP was the cause to make that sound. It's here on KZbin somewhere. He had a friend mechanic re-hone one of the cylinders. And I believe he placed the piston and rings as well on that cylinder. It solved his issue.

[@matrixbikes]

My 2004 Jeep wj 4.0l compression readings from 173 to 180. Is that normal for this engine with 145k miles? I don't think so. Rough idle but runs great. I've replaced all the sensors 2 times I mean everything even the crank sensor. No vacuum leaks. Injectors are the 3rd set. Coil pack are the 3rd set. I tried to dicarbonate the engine too. I was thinking to fuel up with a 91 octane fuel to see the different. Please let me know if you have any suggestions!

[@thatsilverxj7874]

Excited the video series is starting to begin!

[@ProjectDanH]

Me too buddy!

[@JustJeep_It]

Yahoo. The builder is starting! Looking forward to it man

[@ProjectDanH]

Thanks brother! I'm excited too!

[@natemasterson1727]

we've been thinking about driving our XJ back to Missouri to visit family and this is one of the things I want to do before I set off on that long journey. I bought it off a kid in Deer Park who overheated it in the past and had to have the head gasket replaced, so I've always worried about overall engine health since learning that. Your video and tester recommendation will help me out a lot when I finally get around to testing myself!

[@ProjectDanH]

you can definately do it! I hope your tests yield positive results👍

[@adn.5183]

hey! just wanted to say I think it’s amazing how much you reply to comments! I’m looking at buying an XJ as my first vehicle and I stumbled upon your videos and just wanted to say hi! 😄👍🏻

[@ProjectDanH]

thank you! if you guys take the time to watch the I'll take the time to write back! 💪 Good luck!! with the XJ purchase, hit me up on IG if you have and XJ questions.

[@adn.5183]

Project Dan H Love yo hear it thanks !

[@omaralblowi6278]

Good to see u again, great vid

[@ProjectDanH]

Thank you sir!

[@dixone.garciad.9382]

Hello from Venezuela! I clicked thumb up before to start to play the video! Ha! I really love your videos. Great job.

[@ProjectDanH]

HAHA Awesome! Thank you so much!!!

[@301edward]

Buenas tardes, I am from Venezuela, podrias colocar subtitulos al video?

[@ProjectDanH]

@@301edward Hey thanks for watching.. I'll try to get them in! Thank you!

[@1stzjtruck706]

Great job on the video. Always looking for your videos to come out. Just be careful of that 0331 cylinder head they are prone to cracking. Just healing my neck and I will get back to rebuilding my 4.0.

[@ProjectDanH]

Yep! The infamous 0331 crack between cylinder 3 and 4. TUPY will save the day!

[@brossovitch]

Yay. Dans back!👍🏻

[@ProjectDanH]

Thanks buddy!

[@andrewhelbling4]

Great job keep it up Dan

[@ProjectDanH]

Thanks buddy👍

[@khndenmark]

Thanks again for all your time and information

[@ProjectDanH]

My pleasure! 👍

[@DEInTheGarage]

I love the coil rail on the WJ and later XJs, but why couldn't we get it as an individual pack setup?! One pack goes and you have to replace the whole thing. Also makes it very difficult to diagnose if a pack is causing a misfire as you cannot swap between cylinders. This has plagued me on a number of WJs

[@ProjectDanH]

very very true Doug! I think space was the biggest concern consider they're is only 3 pack.. they had to double up I guess... check this beast out.. kzbin.info/www/bejne/j4jGi4CgdpyNnbM now that's a cool pack rail!

[@jayragoonanan2598]

Love your video's man, your like the jeep guru! I'm having the worst time trying to figure out my 98 4.0 stalling issue. Would be super helpful if you did a series of common issue on the infamous stalling problem.

[@ProjectDanH]

Thanks Jay! I would love to... fortunately i haven't had that issue. I believe a new PCM might solve that problem. if you but a used one make sure its a 98. 1998 PCMs are year specific.

[@jayragoonanan2598]

Thanks for the reply but i have changed the pcm, crank position sensor, map sensor, aic, distributor pickup and plug/wire's and still no luck. Idk what else to try. I'm losing my mind over here. Lol

[@amoncopeland6747]

@@jayragoonanan2598 stalls after start? Or idles then stalls when you go to gear?

[@jayragoonanan2598]

Cranks and stalls whiles at idle(may run for about 5mins) or when coming to a stop.

[@amoncopeland6747]

@@jayragoonanan2598 check the wiring to the crank position sensor. They used thinner wire than earlier models. The intermittent stall is indicative of a short.

[@appleguy1986]

Sweet!

[@ProjectDanH]

Hey John!

[@paulparr8529]

Never have I been so educated, so awed,.. and so aroused! Thanks Dan H!

[@ProjectDanH]

🤣🤣🤣 love you Paul!

[@DEInTheGarage]

can probably bore .030 over and be fine. 4.7 stroker would be awesome dude!

[@ProjectDanH]

stroker!!! 😃

[@fjnagle2nd]

Should think about building a stroker build for this project! Or a Hemi swap?

[@ProjectDanH]

I'm gonna do a budget refresh on a running motor then save Money for a stroker replacement 😃

[@beauhenderson2249]

Hi Dan, I love your videos. Why not put a 5.9 in the Beach Jeep?

[@ProjectDanH]

That would be awesome but I don't have a 5.9 🙁. I'm gonna keep it stock because I have a million 4.0 parts. One day I'll put a 4.7 stroker in 😃

[@wildbill23c]

Probably wouldn't fit....the 5.9 is extremely cramped in the ZJ, so trying to cram a V8 into the XJ that was actually designed for a V6 or a 4 cylinder probably wouldn't work.

[@ProjectDanH]

@@wildbill23c yep

[@samalo1920]

Owesome. I love it

[@ProjectDanH]

Thank you! 😊

[@jamesrant6199]

hey dan, you should look into the k suspension viper coil upgraded for the 97-01 XJ's. i currently have it in my 2000, best upgrade ever, during the summer i was having lots of problems with the stock coil pack having hard misfire from heat, similar to fuel rail heat soak, it mounts a dodge viper coil and bracket to your coolant reservoir and has 6 plug wires running to your spark plugs and wire harness adapter, considering you will spend most of beach jeeps days in the sun, this upgrade might be great for you, and for black beauty, stay safe brother!

[@ProjectDanH]

That's an excellent idea! Sounds like a must have for beach jeep!

[@robertgrauman8602]

I was just about to ask that same question. I had the ksuspension ultimate power upgrade on my 99 XJ, you could barely touch the key and it would start and the windows went up and down faster. Also check out the headlight harness they sell. Well worth the money.

[@ProjectDanH]

@@robertgrauman8602 thanks Robert! I plan to make my own power upgrade. I find the K suspension kit to have too much extra wire. Still a Great kit tho 💪

[@robertgrauman8602]

@@ProjectDanH not knowing what your plan is this may not apply to you, but the kit is essentially a "big 3 upgrade." Let's you put a bigger alternator on it. I have one of their Kit's on my ZJ and it's perfect with my 160 amp durango alternator. As long as you replace the fusible like with some kind of inline fuse that is the amperage of your alternator plus a certain percentage and round up to the nearest available fuse size, in my case a 250 amp mega fuse, you should be fine. K suspension is basically a small mom and pop shop selling stuff for our Jeep's. They've got great customer service with online tutorials on how to install their products. I like the military style terminals in their power kit, let's you add an accessory quickly without splicing. But then again I've been talking them up since before they got featured on Motorhead Garage. And hey there's another idea for a project for you, alternator upgrade. You might need it with what you're doing with Beach Jeep.

[@ProjectDanH]

@@robertgrauman8602 yea buddy! I'm definitely doing the 160 amp upgrade. I'm very familiar with K suspension products and I'm not too thrilled with their electrical components. I wasn't crazy about their xj headlight upgrade, the harness was made in China like the Amazon crap and the wires were falling out of the connectors. Also on their power cable upgrade the ear of their positive terminal cracked off. I think they are better suited for metal fabrication.

[@trenthelms4778]

Just learning... What compression readings would be considered a failed engine candidate? I understand the 75% range, but what if most of the readings were less than 150 for example. Would that be a concern? Is there a 4.0L spec somewhere that should be checked against? Btw, thanks for awesome camera angles, it helps!

[@ProjectDanH]

Hey Trent! Thanks for checking in, great question. According to the 2001 XJ service manual the engine compression should range from 120 to 150 and should be within 30 psi of one a other 👍

[@trhmlton9293]

Great video. I have a compression tester but no Jeep 4.0 adapter for the spark plug holes. Any idea where to find just the adapter?

[@ProjectDanH]

Not that I know of, probably gotta but buy a new one.

[@trhmlton9293]

Thanks Dan, ya that was what I was thinking too. If I find a part number I'll let you know 👍

[@francolopezjosealfredo2159]

Y pues tus jeep están fenomenales mucho éxito

[@ProjectDanH]

Thank you fredy!

[@francolopezjosealfredo2159]

Oye bro para instalar el trasmisión cooler en un jeep cherokee sport xj 1999 tenes video

[@ProjectDanH]

hey Fredy! I installed a trans cooler in a ZJ, I have a video of it on the channel. it's basically the exact same thing you would have to do for an XJ. also if you see my XJ grill light install vid you can observe the cooler in my XJ 👍

[@francolopezjosealfredo2159]

@@ProjectDanH Oker entonces básicamente es lo mismo verdad para la instalación

[@francolopezjosealfredo2159]

@@ProjectDanH bueno muchas gracias por supuesto que visto los dos videos y la verdad están muy padres tus autos mucho éxito y una pregunta que tienes de sistema de sonido en tu jeep xj

[@nobsatthistime]

what yr.'s would i find one of those 0331 Tupi Heads? or can they be bought new good to know just incase.

[@ProjectDanH]

0331 TUPY in 02-04 WJs and 02-06 and TJs

[@aaronanderson6594]

Any update on the WJ?

[@ProjectDanH]

still no title, probably gonna have to pay a titling company.

[@jaysmith5084]

I was like if he's using the 5 speed why not swap the whole thing over to Beach Jeep and then you were like let's see what's behind door #3 😂

[@ProjectDanH]

lol! gonna try to run the 99 block with the 01 head, harness and computer, the AX15 manual and a 242 transfer case 😱

[@diehard00007]

Can you test compression on an engine before installing?

[@ProjectDanH]

theoretically yes.. you'd have to crank it by hand to get the pistons to generate the pressure

[@victorvip878]

Would this be a good first car a Jeep Xj

[@ProjectDanH]

it would be a good 1st car and a forever car!

[@danhambrick6331]

Hey Dano,sorry if you mentioned it and I missed it,is the TUPY head the replacement for the 0331?

[@ProjectDanH]

Yep! A TUPY is still an 0331 ... Just revamped 😉

[@mclehed77]

Ha ha put it together so we could take it apart 😂that was funny

[@ProjectDanH]

lmao! yep 🤦‍♂️

[@canadiangrower5316]

Was about to say if that’s lifter tick your hearing my God I wonder what a knock sounds like to you LOL 😅

[@mnsmcd9587]

Skip to 20 min for the actual content

[@ProjectDanH]

Engine selection is content

[@mnsmcd9587]

@@ProjectDanH so, not working 4.0, not working 4.0, working 4.0 is selection and content?

[@ProjectDanH]

@@mnsmcd9587 exactly. Enjoy the journey 😃

[@user-vp4cm6vo6d]

You're gutting a 2 door 5speed 4x4? Not smart

[@ProjectDanH]

4x2 ... wrecked... Gutted... and chopped it in half

[@vesputia]

sausage mcmuffin....

[@ProjectDanH]

🤣🤣🤣 Classic

[@TarmanTheChampion]

Sounds like a helicopter

[@ProjectDanH]

lol

[@serchmarc]

can you recommend me a place or a page where i can find a cherokee XJ coupe 2 doors really cheap? i tried auctions but are kind of expensive,, i really apretiate your advice,, im not from USA

[@ProjectDanH]

try a salvage auction... Copart. IAA.. you will have to fix it of coarse.