creep_in_the_jeep Posted June 16, 2015 Share Posted June 16, 2015 okay well i don't know how to make a new post so ill edit this one i have a 88 jeep comanche 4x4 with the 4.0 automatic and i filled the gas tank full till the nozzel kicked off i was driving back to work and it just died. tried restarting it and couldnt get it to fire but when i pushed it into a parking lot i tried it again and it fired and runs fine i looked at the wires and ect to the pump and it seems like fuel is splashing out from around the pump and seal. could it be too full and that caused it to die? help please don't want it to do it again thank you Link to comment Share on other sites More sharing options...
87MJTIM Posted June 16, 2015 Share Posted June 16, 2015 It is in the oil pan. How hard is it? Not very difficult. It is just MESSY, time consuming and MESSY. If you've never done this before, schedule 4 to 6 hours from start to finish. You will need a replacement pump, oil pan gasket and oil. A new filter could be installed, since you have gone this far. Link to comment Share on other sites More sharing options...
creep_in_the_jeep Posted June 16, 2015 Author Share Posted June 16, 2015 can you drop the pan easily or do you have to lift the engine to get to it Link to comment Share on other sites More sharing options...
HOrnbrod Posted June 16, 2015 Share Posted June 16, 2015 Type "oil pump" in the search block (upper right corner) and there will be a slew of information you can read. Link to comment Share on other sites More sharing options...
Megadan Posted June 16, 2015 Share Posted June 16, 2015 The real question is, why do you believe the pump is going out? Are you getting low or inconsistent pressure readings on the gauge? If so, I would start with the much easier and cheaper sending unit for said pressure gauge. Link to comment Share on other sites More sharing options...
87MJTIM Posted June 16, 2015 Share Posted June 16, 2015 can you drop the pan easily or do you have to lift the engine to get to it It will drop fairly easily. You may need a rubber mallet to "pursued " it. Don't use a metal hammer. Like asked above, "is it pump" or is it the sending unit or gauge? Link to comment Share on other sites More sharing options...
creep_in_the_jeep Posted June 16, 2015 Author Share Posted June 16, 2015 well it starts clattering and knocking when the light starts flickering Link to comment Share on other sites More sharing options...
Eagle Posted June 17, 2015 Share Posted June 17, 2015 well it starts clattering and knocking when the light starts flickering That's not unexpected. The question is, under what conditions does it start clattering and the light flickering? How many miles on the engine, what type and weight of oil are you running, and what brand of oil filter are you using? Link to comment Share on other sites More sharing options...
creep_in_the_jeep Posted June 17, 2015 Author Share Posted June 17, 2015 i use a ac delco filter i use 5-30 oil and only when its idiling Link to comment Share on other sites More sharing options...
dasbulliwagen Posted June 17, 2015 Share Posted June 17, 2015 "Clattering and Knocking" ??? I was going to say get a high volume pump, maybe a Melling, and use diesel engine oil 15w40, but if you have what is generally considered real knocking, it may be too late. Again, what is your milage and your normal driving style? And is yours auto or manual? Hopefully we can help you out better with a little more info. Link to comment Share on other sites More sharing options...
creep_in_the_jeep Posted June 17, 2015 Author Share Posted June 17, 2015 it is a manual and i drive it pretty good and i think 1400000 Link to comment Share on other sites More sharing options...
Jeep Driver Posted June 17, 2015 Share Posted June 17, 2015 Here and elsewhere.......seems rather pointless anymore......... 5-30 is way too light an oil for a worn out engine. I can tell you what works- 40W and a quart of Lucas. If you want to get a few more miles out of it. We have no pics, no idea how your engine has been maintained........nothing.........only chatter, and now knocking......at idle. I could be that your pump cannot keep up at idle or the pump is worn out.......or full of sludge at the pick up screen and is starving.......who the hell knows? It'll cost you about $40 to find out, or break it down and replace with a HV pump........or you may be $#!& out of luck already. Link to comment Share on other sites More sharing options...
Jeep Driver Posted June 17, 2015 Share Posted June 17, 2015 Oil pump is on the passenger side of the block about in the middle. Image Not Found Link to comment Share on other sites More sharing options...
Bobolink Posted June 18, 2015 Share Posted June 18, 2015 Boy howdy, 1.4 million is beaucoup miles....... Link to comment Share on other sites More sharing options...
Minuit Posted June 20, 2015 Share Posted June 20, 2015 If the 2.5 is anything like the 4.0 (don't quote me on this but I believe they use the same oil pump), I recommend against installing a HV oil pump. It's too big to fit under the pan without significant clearancing and some people say that it may pump TOO much oil and end up running itself dry. If the engine is "clattering and knocking", whatever that means, the damage has most likely been done already. Source: tried to install HV oil pump on my engine Link to comment Share on other sites More sharing options...
HOrnbrod Posted June 20, 2015 Share Posted June 20, 2015 If the 2.5 is anything like the 4.0 (don't quote me on this but I believe they use the same oil pump), I recommend against installing a HV oil pump. It's too big to fit under the pan without significant clearancing and some people say that it may pump TOO much oil and end up running itself dry. If the engine is "clattering and knocking", whatever that means, the damage has most likely been done already. Source: tried to install HV oil pump on my engine What HV pump? Never heard of that. I've been running the Hesco HV pump in my stroker for about ten years now with no problems in the installation or running it all those years. Link to comment Share on other sites More sharing options...
Minuit Posted June 20, 2015 Share Posted June 20, 2015 If the 2.5 is anything like the 4.0 (don't quote me on this but I believe they use the same oil pump), I recommend against installing a HV oil pump. It's too big to fit under the pan without significant clearancing and some people say that it may pump TOO much oil and end up running itself dry. If the engine is "clattering and knocking", whatever that means, the damage has most likely been done already. Source: tried to install HV oil pump on my engine What HV pump? Never heard of that. I've been running the Hesco HV pump in my stroker for about ten years now with no problems in the installation or running it all those years. Melling M167HVS. Link to comment Share on other sites More sharing options...
HOrnbrod Posted June 20, 2015 Share Posted June 20, 2015 If the 2.5 is anything like the 4.0 (don't quote me on this but I believe they use the same oil pump), I recommend against installing a HV oil pump. It's too big to fit under the pan without significant clearancing and some people say that it may pump TOO much oil and end up running itself dry. If the engine is "clattering and knocking", whatever that means, the damage has most likely been done already. Source: tried to install HV oil pump on my engine What HV pump? Never heard of that. I've been running the Hesco HV pump in my stroker for about ten years now with no problems in the installation or running it all those years. Melling M167HVS. :dunno: Link to comment Share on other sites More sharing options...
Jeep Driver Posted June 20, 2015 Share Posted June 20, 2015 If the 2.5 is anything like the 4.0 (don't quote me on this but I believe they use the same oil pump), I recommend against installing a HV oil pump. It's too big to fit under the pan without significant clearancing and some people say that it may pump TOO much oil and end up running itself dry. If the engine is "clattering and knocking", whatever that means, the damage has most likely been done already. Source: tried to install HV oil pump on my engine What HV pump? Never heard of that. I've been running the Hesco HV pump in my stroker for about ten years now with no problems in the installation or running it all those years. Melling M167HVS. :dunno: Yes, Melling has a HV pump for both 4.0 and 2.5, same pump. I doubt you will load the top end and starve the sump on a 4.0.....5 qts. But the 2.5???? maybe, but I doubt that too. They say to smooth out the head and oil returns and paint, to help return to sump.....screw that. His bearings are pissing and $#!&ting anyway, the least of his worries is flooding the upper with oil. First I heard of it not fitting though. Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted June 20, 2015 Share Posted June 20, 2015 I was told my melling high volume pump would not clear oil pan without messaging the pan a bit for clearance . Never had any issues , but it is bigger than the stock pump . Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted June 20, 2015 Share Posted June 20, 2015 The 4.0 has 6 qts of capacity . Link to comment Share on other sites More sharing options...
Jeep Driver Posted June 20, 2015 Share Posted June 20, 2015 The 4.0 has 6 qts of capacity . Yeah, I know, I have one of each. My bad. Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted June 20, 2015 Share Posted June 20, 2015 The 4.0 has 6 qts of capacity . Yeah, I know, I have one of each. My bad. No worries . Link to comment Share on other sites More sharing options...
Jeep Driver Posted June 20, 2015 Share Posted June 20, 2015 The 4.0 has 6 qts of capacity .Yeah, I know, I have one of each. My bad. No worries . It's been that long since I changed the oil in the XJ........you've reminded me. Actually, I use 5qts and 1qt Lucas......that's how that statement came out wrong. Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted June 20, 2015 Share Posted June 20, 2015 The 4.0 has 6 qts of capacity .Yeah, I know, I have one of each. My bad. No worries . It's been that long since I changed the oil in the XJ........you've reminded me. Actually, I use 5qts and 1qt Lucas......that's how that statement came out wrong. I never make mistakes , hahaha . I understand Link to comment Share on other sites More sharing options...
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