STLHD

Trust me if it didn't have to go i would not sell. someone is going to be very happy with this truck.

That is pretty cool.

i am not to sure of the history with this truck. picked it up out in Colorado in 2015, and started slowly getting it to what you see. i believe i am the third or fourth owner. When i got it it had a small pieced together lift ( about 4'' ), and some square mud terrain tires ( Rough Ride !! ). i flew out to Denver purchased the truck and drove the 970 mile home, it was a great trip and the little truck ran solid no issues.

1987 MJ

thanks all, truck is running a lot smoother now. changed out the o2 sensor and just because changed out temp sensor as well. is there any benefit to running a 20psi injector? if so what brand ? thanks again for all the help.

o2 will be replaced tomorrow I have owned this truck for three years not sure on the last time it was replaced but I have not. Thermostat I have replaced and I believe it’s a 180 or 190 the truck does have a 97+ coolant system in it, not sure if that changes anything on this. One thing I can confirm is the fuel tank in it is definitely not an 18 gallon tank ran the truck completely dry yesterday and the pump shut off at 14.5 gallons not sure what tank is in it at this point but it’s not taking 18 gallons. I do like how the tank sits in it though it has an aluminum skid plate and it is high in the truck and does not hang below the unibody so I will be fabing in a second tank where the spare tire once lived hoping to keep it high as well and at least getting another 14 gallons.

temp gauge has always worked fine so i have never replaced that one, just the one on the block.

well i have changed air temp sensor as well as coolant temp sensor. is there something else i should look at? and any thoughts on the injectors and such?

and the Temp sensor was replaced about two months ago. I keep a couple on hand as this thing goes through one about once a year, not sure if this is because of low quality parts or some other issue.

not sure but it will be replaced tomorrow, you mentioned it before and i already picked up the part. I have read some stuff on cold air intakes, injectors and hotter ignitions as well. are they worth the noise and money? i have also considered the newer motor swap as well but i have a hard time getting rid of the Renix, it has 223k on it and still has 75 PSI oil pressure, and runs great, and i am okay with the power it produces ( getting older and don't need the speed anymore) . If injectors and air intake are recommended what brands have you seen do well and not kill the bank?

all good ideas not sure why the mileage is so off if you all are saying it should be around 19mpg. we are at 5000 feet and everything from there is up the truck has 4.88 gears and 33'' tires and will be going to a 35'', Frame Plated, bumpers tire carrier winch, long arm, and center skid plate, so i have added some wait and i am sure the mileage has suffered. i have been around jeeps my whole life and have never seen a 4L with larger than stock tires get 19mpg ( just my experience ). Any ideas to improve the mileage I'm all ears. thanks all

buddy we'll do five hundred miles of dirt with no towns, in town i wouldnt care if i could only go 40 miles on a tank!!

I am the third owner of this truck and really have little history on what was was done to it before me. when i purchased the truck it was in okay shape with some 97+ stuff done it had a lift pieced together and drove really bad but had a new fuel tank and aluminum skid plate for the tank. I am thinking at some point the tank was replaced with the 16 gallon from a long bed or at least that's what the parts house had ( When filling the fuel from empty with the low fuel light on i am only able to get 14 gallons in it ), judging from some of the work i found on this truck that would be my guess. Does anyone reproduce the 18 gallon tank? Has anyone done a dual tank where the spare tire is mounted? Best i can figure is i'm getting around 14mpg, and being in Nevada nothing is close including gas stations. Thanks all for the input on this matter.

so i've been looking on this forum for any information on fuel tank swaps. what i'm looking to do or find out if it can be done is trying to find out if the MJ long bed tank can be swapped into a short bed MJ. i have a 1987 MJ and i think it has about a 14 gallon tank and for the way this truck is used it is no ware near enough. I do not want the tank to hang down lower than the unibody and really not interested in swapping in a plastic tank from a dodge. Anyway if any one out there has info on this subject please let me know, i need to find a way to get some kind of range out of this thing. thanks,