4.0L freeze plugs
I have a 4.0L OHV and I was wondering if were the freeze plugs are at on here. I think I might have a leak out of one of them. Would one be able to crack open and leak on driver side by the head/intake
Its not hard at all but replace everything. I've done a couple of the OHV's. Theres a write up on www.RangerPowerStation.com
Here. Its a simple fix as long as you have tools. I usually do a coolant flush and change the thermostat.
http://www.therangerstation.com/Maga...11/gaskets.htm
http://www.therangerstation.com/Maga...11/gaskets.htm
It might be the thermostat housing. I just had to replace mine. 2003 w/ 4.0 SOHC. I do not know if the set up is the same. I had coolant dripping back ontop of the engine block behind the thermostat. My mechanic said the freeze plugs rarely ever go bad on the newer engines. So I would check the thermostat housing. They do crack and the dealership says they replace them all the time because they are made of cheap plastic. Hope this helps.
I thought it could be the thermostat too. I planned on changing it because I want to drive this truck for a while longer. This truck does have 200,000 miles on it so I thought the freeze plugs might have rusted away or cracked since its so old.
I haven't replaced freeze plugs on a 4.0, but have done the job on V8's. They should be on the sides of the block in the motor mount area, you usually have to undo the mount, jack the engine up, and remove the half of the mount that bolts to the block. There isn't much room to work, but sometimes you can drill, put in a sheet metal screw, and pop it out with a craw hammer. Other times you can drive a screwdriver through it if it's rusty enough and pop it out.......not one of my favorite jobs.LOL
It can be just as much fun getting the new ones in. Put #2 Permatex around the outside perimeter and tap it in. Use appropriate size socket and hope you have room to tap it in with a hammer.....just flush.
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