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99 thoughts on “Parts cannon!! can it be saved?? 95 jeep wrangler 4.0”
  1. Avataaar/Circle Created with python_avatars ElysiumNZ says:

    And don’t forget….doo da doo da doo answer the phone!

  2. Avataaar/Circle Created with python_avatars Dave J says:

    These 4.0's over heat so easy. The first thing owners do is yank the clutch fan and put a CHEAP electric fan on it. Leave the clutch fan but all a pusher fan in front of the radiator.

    When topping off the coolant, do not forget to raise the rear wheels about 8 inches and then pull the "BURP" plug at the back of the intake to get the trapped air out.

  3. Avataaar/Circle Created with python_avatars Andy Saunders says:

    That is a YJ, dude.

  4. Avataaar/Circle Created with python_avatars Silverado says:

    I have a OTC scanner that is able to do OBD I. It saves me a lot of time diagnosing older vehicles.

  5. Avataaar/Circle Created with python_avatars John Noland says:

    Those water pumps were the bane of the 4.0 I had a 01 cherokee and to put two on it. It never did cool as good after the original mone failed.

  6. Avataaar/Circle Created with python_avatars Bassboy says:

    That was hard to watch.

  7. Avataaar/Circle Created with python_avatars Dave J says:

    Get a crank and rods from an AMC 4.2L (258cci) and bore the 4.0 block 0.060" over for a 4.7L STROKER. These can be bored and stroked to 5 liters.

  8. Avataaar/Circle Created with python_avatars Hoontar says:

    Didn’t see it elsewhere, but putting a clutch fan in is better than the electric fan that they’ve used.

  9. Avataaar/Circle Created with python_avatars King of Brutal Theocracy says:

    Fixed a keep with similar problems. Was a restricted radiator and cap

  10. Avataaar/Circle Created with python_avatars Thomas Britton says:

    Going to say after several yrs of watching you… you as a owner seems less of your real funny stuff each seams stressed … i trully get it

  11. Avataaar/Circle Created with python_avatars Audrey Heuer says:

    Wow, Hate to see this guys bill. 2 days still no answer

  12. Avataaar/Circle Created with python_avatars jemzelp says:

    Knock is the answer…I

  13. Avataaar/Circle Created with python_avatars gazpixs says:

    You Are an Excellent Technician Rainman, diagnose and only save the parts cannon for the last resort car invasion….

  14. Avataaar/Circle Created with python_avatars Rick Allen says:

    Water in gas and spark plugs is my non professional diagnosis

  15. Avataaar/Circle Created with python_avatars Nick Snarski says:

    With that much rust in the fuel rail I would be looking at the fuel tank for rust-water.Also most likely the injectors are not flowing properly.

  16. Avataaar/Circle Created with python_avatars Tin Man says:

    Check the plugs and check for a Blow head gasket

  17. Avataaar/Circle Created with python_avatars Russ Walker says:

    used to own a jeep CJ5 and belonged to a Jeep club, and water pumps were a well known problem, usually the bearings in the pump failed with short life.

  18. Avataaar/Circle Created with python_avatars Kent Diego says:

    Fuel injectors have my vote. Can't wait for part 2 to see fix.

  19. Avataaar/Circle Created with python_avatars Burntpoptarts says:

    Bruh. Ray. knowing how you run things here. i have a feeling i know what your expecting from this comment so i will give you what you want.. close that dang door before you pull into your garage.

  20. Avataaar/Circle Created with python_avatars PocoSaintFTW says:

    I've never had a 4.0 that didn't need throttle on a hot start.
    watching the video you can see that the fuel pressure spikes long before the jeep has even begun to start.

  21. Avataaar/Circle Created with python_avatars Vern Lemasters says:

    I know you know way more than me but I seem to remember those engines tend to crack a head if they get hot

  22. Avataaar/Circle Created with python_avatars John Jansson says:

    i would check compression on all cylinders. It almost sounds like 1 cylinder is loosing compession.

  23. Avataaar/Circle Created with python_avatars franco deiuliis says:

    Pain in the but
    I’m sure you’ll find it
    Cheers from Nova Scotia

  24. Avataaar/Circle Created with python_avatars Drew Crews says:

    That was a fun jump down the rabbit hole, or the opening of a can of worms on a 27 year old vehicle. Every piece that you investigate probably needs replacing or cleaning even if it doesn't correct the main problem…. lol

  25. Avataaar/Circle Created with python_avatars QOTYIT says:

    Badass, can't wait for more on this jeep 🤙🏽

  26. Avataaar/Circle Created with python_avatars Dale Joy says:

    power side on injector

  27. Avataaar/Circle Created with python_avatars pugsly35 says:

    Is this the second vehicle you've had with exactly 156,000 miles on it?

  28. Avataaar/Circle Created with python_avatars Daniel Jordan says:

    Leaving us hanging! Looking forward to part 2. And 3 and 4 probably at this rate! 👍👍👍

  29. Avataaar/Circle Created with python_avatars Will Smith says:

    Check the map it may have a leak in the diaphragm causing faulty readings

  30. Avataaar/Circle Created with python_avatars Joe Sammy says:

    Do a leak down test please

  31. Avataaar/Circle Created with python_avatars bobsg35 says:

    You kept squirting fuel out while testing, I was hoping you didn't Jay Leno yourself.

  32. Avataaar/Circle Created with python_avatars WalkenDead1369 says:

    Typically, the largest "new part" issues I have hade are with master cylinders and brake calipers. There have been a few other parts but those are not as common as the other two

  33. Avataaar/Circle Created with python_avatars Hugo Dahl says:

    Just a quick note on the thermal imager – the temp was showing "> 842", which means the temp was outside it's range for detection.

    Doing a quick check on the Snap-On site, their imagers max out at 840F, so a 2 degree margin of error, at those temps, is understandable. So while "red hot" may have been hyperbole, it's certainly closing in on reality!

  34. Avataaar/Circle Created with python_avatars Derek Hobbs says:

    There was a spate of counterfeit Walbro fuel pumps a few years ago.

  35. Avataaar/Circle Created with python_avatars zannus says:

    It's an old 4.0 jeep, if it's not running good it means it's not leaking enough oil

  36. Avataaar/Circle Created with python_avatars Montana Dirt Roads says:

    She lean, full fuel system overhaul.i had a regulator give me hell on my jeep, causing misfires and all sorts of hell,I was certain it was ignition related,then injectors( had 330k on them) no change. After about 1200$ in parts I sent it to a shop they had found one failed injector( new one) and failed regulator.they will pull fuel from the regulator and suck it through the vacuum system.with that hard start it almost sounds like it's a crank sensor going bad.

  37. Avataaar/Circle Created with python_avatars Shmeh Fleh says:

    The 94 Wrangler has a mechanical radiator fan in it. Why would they take that out and kludge in some electrical fan?

  38. Avataaar/Circle Created with python_avatars V H says:

    Cam sensor ?

  39. Avataaar/Circle Created with python_avatars Mike Nomath says:

    Chitty chitty bang bang cheap jeep!

  40. Avataaar/Circle Created with python_avatars Sock Eating Golden says:

    Thanks for another great vid

  41. Avataaar/Circle Created with python_avatars gogmorgoaway says:

    Code 54 is the distributor sync sensor, also known as the cam position sensor. It controls fuel injector timing. It's possible the sensor itself went bad, but it's also not uncommon for the bearings in the distributor to develop some radial play, which will screw with the sensor reading, which screws with the injector timing. Worn distributor gears can also cause similar issues.
    But I will say most of the codes there are from unplugging things and reconnecting while it's running. You can clear them out by leaving the battery disconnected for a few minutes, then take it for a short drive and check again for what came back.
    While maybe not worth it to a professional who doesn't know if they'll be using the tools again, it's still possible to get the diagnostic connectors. They're sold new in $$$$ full kits, or available used online. Most of the older cables will still plug into newer diagnostic tools, although generally I've seen them included with an old tool, usually a Snap-on scanner. I picked one up pretty cheap off ebay a couple years ago, (non touch-screen Solus), and it's been a pretty decent investment at least for an enthusiast. There's not a ton of data and tests to be had compared to what you get from a modern car, but it at least gives you something.

  42. Avataaar/Circle Created with python_avatars Grumpy says:

    Far be it for me to tell you how to do your job, but with a car running like that, having a long term fuel pressure issue, I'd have pulled the plugs by now, to check their condition. And isn't chasing vacuum leaks just the pits! Though one leak is going to affect everything else on the same vacuum circuit.

  43. Avataaar/Circle Created with python_avatars Melicoy says:

    Thanks

  44. Avataaar/Circle Created with python_avatars Sandmansa says:

    This poor Jeep has had many years of neglect. Carbon plugged vacuum port and many vacuum leaks. Heavy rust in the fuel rail. Clapped out water pump. Dead cooling fan. Disconnected wires. So far, it looks like more parts will be required. That studder at mid throttle looks strangely familiar. Is the distributor advancing at all?

  45. Avataaar/Circle Created with python_avatars T.C. Anthony says:

    94 grand Cherokee. It was given to me with a runability problem. Yup free jeep. Ran good for a few minutes then terrible. Came with 10 years of receipts. Was told it had a new fuel pump. After a week of fumbling around I realized the brand new fuel pump was bad from the start. Warrantied the pump and it ran great for years.

    Given the state of your engine I would suspect your injectors are hosed or at least one is. I’m no mechanic though. Just a shade tree guy.

  46. Avataaar/Circle Created with python_avatars Tom Beilman says:

    Erick O worked on a Jeep that had a return line from the fuel pump that was rotten and not letting the fuel pump get full pressure. It caused starting problems

  47. Avataaar/Circle Created with python_avatars tin pin says:

    What is that, like, 10 fuses and 4 relays? Thank god Chrysler hadn't invented the Totally Idiotic Power Module yet!

  48. Avataaar/Circle Created with python_avatars Gary Alford says:

    Those mistreated old clunker's can be a real time consuming pain !

  49. Avataaar/Circle Created with python_avatars Max McKinney says:

    Good luck