Overheating 89 Jeep

[3rdSuspension]

It is not a radiator problem, it is not a water pump problem, and a flush will not fix it!

The overheating is cause by poor cooling system design from 88 - 91 XJ's - the one way to fix it permanently is to do a cooling system swap using a 1992 cooling system .... research it for the details.

[Jeepxjfan87]

Does the problem with the resevoir apply to newer model xjs that do not have the self contained cooling system. ive had a few problems with mine lately an cant seem to get the problem worked out.

[latingmc]

you probably have a blown head gasket or a cracked block, that's why you are getting the bubbles in the reservoir. good luck.

[fjonesy1981]

i just fixed the pressure problem with a plumbing part, first you have to go to a plumbing supply store, Ferguson is the best, get a 1 and 1/2 in inside compression cap, it has a wing nut on top with a rubber ring in between top and bottom. slide it in the top of your reivoir and tighten wing nut and it compresses the rubber out to make a seal and it wont blow anymore

[JoeSparro]

7:14 don't be a hater

[JoeSparro]

5:00 criminals

fur reel

[kroyster21]

Jeeps are notorious for cracked heads or bad head gaskets. So that means that carbo dioxide(CO2) is entering your cooling system. If the CO2 from your engine(AkA Exhaust gas) is in your cooling system, that is gonna heat up your coolant and therefor heat up your engine. Bad news bears right? Your cooling system is compromised of a few components. The water pump circulates the coolant from your motor into the radiator where it is cooled down, and then pushed through the thermostat.

[sopmodm4]

Huh? Jeep 4.0 I6s are one of the most long lived pushrod engines aver made.BNSF railroad used them for 10 years for their railroad police and put 400,000 miles on many of them before retiring them.

[JoeSparro]

you are notorious for sucking

[5A1312EWULFX]

had same problem just flush system with radiat flush, or get a new radiator there only 120bucks. Also fix the obvious get a new radiator cap. then refill with a gal of antifreeze.

[rivella6]

the way you sat there, recorded yourself while telling this ridiculous "story" the way other people talk about war experiences makes you probably the most pathetic jerk on this planet.

[salmonARTZ]

once the radiator goes out, I'm going to rout it like a 91 or later model, which will require some cutting and shaping, but it'll be worth it in the end.

[salmonARTZ]

dude, i have an 89 cherokee, and it did the same thing. one day I drove home from school, and it was toatally fine and had had no previous problems with overheating. Once I reached my house 4 minuts later, it was extremely overheated and the expansion tank was spitting antifreeze everywhare. We took it apart, changed the thermostat, checked the water pump, checked for blocks, flushed it out, put it back together, and now it works great. So, it ended up being a 10 dollar job.

[chem8guy]

When you flushed the radiator did you actually take the radiator off, or did you flush the system while running using a T-kit and a water hose. Or did you just use a simple hose the radiator and drain and refill.

[clarkmt]

I can't get rid of it though, its an off road beast, and the engine won't die. well, at one point I did carve "RIP '06" in the valve cover but I manged to get it running again. anyway. its a jeep thing. that good or bad? haha. subcribed.

[clarkmt]

flywheel positioning sensor, coil packs, basically the entire ignition system, 3 altinators, new steering colum and steering linkage(out of junkyard) thats close to all of it. now its jacked up in my back yard waiting for me to replace the oil pump, or just clean out the oil pickup strainer.

[clarkmt]

LOL, yeah man, thats all to familiar. I went through the exact same thing. Here is a list of things I've done to mine the past 10 years. (all this stuff broke down at different times) 2 water pumps, 2 coolant reservors/caps, radiator, coolant hoses, 3 fuel injectors, replaced the distributor,

[okctmaxxer]

hmm, that is wierd but yeah i'd try replacing that map sensor, your on the right track, good luck

[chem8guy]

What is a map sensor

[latingmc]

i dont know if their is a MAP for gasoline engines but im a diesel mechanic and it stands for manifold absolute pressure.

[okctmaxxer]

Did you get the jeep fixed? if not I'd suggest replacing your water pump have a coolant flush performed, they should bleed the cooling system when they do that. Now there is also a possibility that the electric fan is not kicking on when it reaches about 220 degrees which could either be the fan itself or the coolant temperature sensor. I'd take it to an actual jeep dealership and have them check it out, I'm a Chrysler Jeep dodge technician so I deal with this stuff all the time

[UserName89]

It turned out to the the whole coolant reservor. Replaced it and everythings fine. Had the thermostat replaced a month ealier already because it was running hot then too. Everythings fine now. I have to fix my MAP Sensor tho, sometimes unplugging it trying to start it and plugging it back in is the only way to get the car started again when its been sitting for more then 4 hours.