ehudpower

I got a 1989 Jeep Cheerokee with the 4.0L the straight 6. I was wondering how do you tell if you have enough coolant in it? I was also wondering whats the best way to clena back by the crankshaft postion sensor?

redrunner

Do you have a closed system on the jeep. That is the system that come on it from the factor. If the coolant is just blow the side inlet hole is the level I always ran mine two 89's at. I have chaged both over to an open system now and it uses an overflow tank.

The CPS cleaning. If you take the time to pull it I would put a new one in it. The are a famous for going bad. If you have an oil leak in the area you can hunt that up. Usually the valve cover gasket leaks on them. I put permaseals in both of mine and that ended the leaks.

XJ Stryker

All renix jeeps have Closed coolant systems. To burp it. Raise the back tires off the ground. Pull the Temp sensor Drivers side rear of the valve cover. You can't miss it you can just pull the connector off the top then I think a 11mm gets the sensor out. Fill up your reservoir about half way prior!!! Pull it the sensor plug. Start your engine and run it till it starts pouring out. Then pop the plug back it. Make sure your reservoir is still good and then you are bled. It really isn't that hard. I have hear read somewhere drilling a small hole in your thermostat will add a autoburp type system but I havn't had to replace my thermo yet to check it out. Good luck.

ehudpower

I am not trying to replace anything on my coolant, i just want to find out if I have enough in it. I bought this jeep over the winter so I am trying to make sure all the liguides and everything is where it spose to be. Thanks for the input though guys!!

XJ Stryker

Ok open your reservoir add to the line. If you are not overheating then your closed system is working fine.

ehudpower

but if i need to change out, how do you tell when u have to much or not enough in it?

XJ Stryker

If your temp is higher than normal then you may be low. Look at your temp guage. 190-210 is normal.

If your bottle is above the line then it is too much. Below not enough. The closed system is really simple don't over complicate it.

ehudpower

this is my first jeep and i want it last for a while so i want to make sure eveything is good to go, if its been sitting a while should u be able to see coolant in the resvior?

XJ Stryker

Yes but if you can't just add some it will be fine. If your temp guage tends to drift to the higher end of 210 then burp any air it has and it will run fine.