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Well hopefully the engine hasn't been run. DON'T run it at all. You run the risk of detonation (exploding your pistons and/or block). Get a fuel siphon or a length of vinyl tubing that's long enough to get into the tank, put your container to drain the diesel into below the gas tank, and siphon it out. ALL of it or as much as you possibly can. Wouldn't hurt to release the pressure on your fuel rail also--not sure of your Jeep's year because you haven't posted it, so I can't give you a procedure there. Usually it's a schrader valve on the fuel rail.
Fill it up ALL THE WAY with good gasoline, prime the fuel pump ( turn the ignition to ON, but DON'T start it up) a few times, drain the fuel rail. I'd do that prime and drain a few times to make sure the diesel is all out of your system.
Last edited by jessenator; 12-06-2018 at 11:24 PM.
I've done one rebuild myself, and a couple junkyard swaps. Those have gone fine. My dad had a remaned engine put in his mountaineer from a large engine remanufacturer and he had 3 put in before he got a good one and that one only lasted 20-30k before jumping timing and having to be replaced. I don't really trust remaned engines that much and would prefer a normal mileage factory 4.0 over a remaned 4.0. Not to mention the price tag being almost 10x less. (Based on the fact I paid less than $300 for the engines I purchased). To each their own, but I prefer the cheaper method.
My biggest concern about doing a junk yard engine is the year, mines an 01 with the notorious 0331 head. Don't want to put it in and maybe get some miles on it and have it cut loose. I remember someone saying before, it's not if, but when it will go.
How much? And how did they manage to jam the oversized diesel nozzle into the gas tank filler?
you certainly want to drain the tank and flush the lines but if it was something line half a gallon or a gallon of diesel and the rest was gas I'd probably just do a drain and refil and run it instead of doing all the line flushing
Diesel in a gas engine isnt nearly as catastrophic as the other way around
My biggest concern about doing a junk yard engine is the year, mines an 01 with the notorious 0331 head. Don't want to put it in and maybe get some miles on it and have it cut loose. I remember someone saying before, it's not if, but when it will go.
You don't have to get an engine from an 01 for it. There's lots of options. All the way back to 91 would fit. You'd just use your sensors and accessories and make a bracket to mount the coil pack. I've seen it done, or if you want a factory coil pack mount you could pull an engine out of any Cherokee that's a 4.0 and then get the Tuppy head off of a later wrangler or grand Cherokee with a 4.0 and then you'd just have to add in a head gasket and head bolts (might as well since they're like $20 or less if I remember correctly) and then drop the motor in. The motor doesn't have to come from an 01 to fit an 01.
Removed the hot garbage that was the old steering linkages and stabilizer and installed what I'd like to call an OEM plus setup, new drag link, drag link to pitman sleeve, steering stabilizer, tie rods, and RC heavy duty tie rod adjusting sleeve. Greased and aligned to "perfection".
Last edited by S. Snake; 12-09-2018 at 01:30 AM.
Reason: Photos didnt attach.
Last night and this morning been pulling people out on the way to and from school. Only one vehicle was too far gone to pull out and keep going. It was a newer car with all the air bags deployed, but I helped them disconnect the battery because the horn was going off.
Last night and this morning been pulling people out on the way to and from school. Only one vehicle was too far gone to pull out and keep going. It was a newer car with all the air bags deployed, but I helped them disconnect the battery because the horn was going off.
Sounds like a busy snowy morning. They took th snow out of the forecast for up here, maybe just a flurry now.
Sounds like a busy snowy morning. They took th snow out of the forecast for up here, maybe just a flurry now.
Problem is we didn't get snow really we got sleet. From what I've experienced snow is a lot better driving than sleet. Last night I was just in 2wd because I hadn't put my front driveshaft back in yet, but when I went out this morning I decided to put the front driveshaft in when I was at my place with a creeper to lay on instead of snow. Had to use 4wd once to pull someone out and I used it getting up a couple hills in parking lots just so I wouldn't be spinning the tires.
So this my first experience with any jeep, and it is this 1998 Jeep Grand Cherokee.
So far the radio wiring (snipped wire ends), the heater (pulled the blower and tested {works} leads with car battery, changed the resistor, even the temperature control unit.. Nanda.)
Now her catalytic converter need replacing as well. But many google searching says that there may very-well be 3 on this Jeep. Really?
So I am having issues. If I need all 3, or if I can get way with just 1 for now?
So yeah, hit me up with any recommendations
So this my first experience with any jeep, and it is this 1998 Jeep Grand Cherokee.
So far the radio wiring (snipped wire ends), the heater (pulled the blower and tested {works} leads with car battery, changed the resistor, even the temperature control unit.. Nanda.)
Now her catalytic converter need replacing as well. But many google searching says that there may very-well be 3 on this Jeep. Really?
So I am having issues. If I need all 3, or if I can get way with just 1 for now?
So yeah, hit me up with any recommendations
You will get better responses if you post this in the stock gand cherokee tech section.
Just make a post for each issue individually https://www.cherokeeforum.com/f5/
If that's all that is wrong with your 20 year old car you are lucky.
My best advice is to fix the issues the right way and be done with them.
My biggest concern about doing a junk yard engine is the year, mines an 01 with the notorious 0331 head. Don't want to put it in and maybe get some miles on it and have it cut loose. I remember someone saying before, it's not if, but when it will go.
Another thought is that if you find a lower mileage motor from that same year that looks like a decent deal.... there are a few companies out there that make a quality new head to fix the 0331 issue at a pretty reasonable cost. Just a thought.
Did a nice little patch job on the roof of my XJ with some Seal-All. That stuff works great and you can paint over it once cured. Mine was a low mileage service model XJ.... and had hole drilled through the roof for a big CB antenna or emergency light bar. It was patched but wanted something that I knew I wouldn't have issues with and not go through the PITA of a process to weld it up since it was a fairly small hole.
So far, this stuff has impressed me. And it's gone through snow, ice and frigid overnight temps outside and no cracking or anything. Plus tube of the stuff was only like 5 bucks.
My biggest concern about doing a junk yard engine is the year, mines an 01 with the notorious 0331 head. Don't want to put it in and maybe get some miles on it and have it cut loose. I remember someone saying before, it's not if, but when it will go.
Here's a JY tip on engines. Try and find one from a tboned or totaled vehicle, that's how you know it's (vehicle) not in there for engine/trans problems. If a vehicle is clean ,no major body damage, it's there because of an engine/trans problems.
12-06-2018, 11:21 PM
Working on the wifes 98 cherokee
