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cooling system

  1. J

    Mystery Coolant Leak 4.0 SOHC - Any Ideas?

    Greetings, Looking for help on where my coolant is going to... Have an 02 Explorer with the 4.0 SOHC engine, high miles (286K). Coolant has been disappearing from the system at about 16+ ounces a week but can't find where it is going, have checked the following: Pressure tested the system, It...
  2. B

    Looking for Coolant Line Help

    Have a big time coolant leak coming from the hose pictured below. Radiator won't hold coolant, and engine is overheating. I poured a gallon of distilled water into the radiator, and found a gushing leak from this hose. Looking for help on what the name of the part is so that I can replace it...
  3. M

    The Dreaded Leaking Thermostat Housing...

    I recently did my intake manifold gaskets and while I was there, I replaced the stupid leaking upper thermostat housing. It had been leaking around the gasket for some time and with coolant at $20 per now, I figured it was a good $15 investment. All said and done, I buttoned it all up and...
  4. M

    cooling system - small plastic black knob

    C an someone tell me what this small black knob in the cooling system is. It is to the right of the radiator. I lost a lot of anti freeze and think it was leaking out from here. the knob was loose so I tightened it. What is it for and how tight should it be ? "Hand Tight"? 2010 Explorer AWD...
  5. F

    4L Coolant Gage Fluctuation

    Hi Folks, My 1995 Explorer about 6 months ago began to exhibit a temperature gage fluctuation from approx. 1/4 scale to almost 3/4 scale during a 100 mile trip I was on. This was out of the blue, after about a year and many miles of rock solid reading at the normal 1/3 range. About a year...
  6. G

    Radiator - Explorer 2000-2001 - Automatic

    Radiator - Explorer 2000-2001 - Automatic - Spectra CU2309 :us:
  7. W

    Two radiators since purchase - FIRST POST

    UPDATED: Installed pics of DNA All-Aluminum Radiator UPDATE: The replacement radiator from Genesis was damaged during shipping; had a gouge halfway up the core. A different radiator I bought from a parts store in person had a defect when pressure tested. Ended up getting an all aluminum...
  8. R

    96 Exlplorer Water Pump Housing damaged will it effect coolant flow

    Own a 96 Explorer XLT - 4.0 with 177K miles. Last weekend, in removing the water pump, I snapped a lower bolt. A friends father heated up the housing with acetylene and I was able to grab onto and remove the snapped bolt with vise-grips, but I now see that the heat "deformed" the left...
  9. T

    engine overheated!!!!

    hello, today my engine overheated. so i said ok ill just top off the water and let it cool off. so i did. but from the store to my house the temp started to rise above oe recommended temp. so when i got home i checked the oil cap to see if i blew a gasket. i didnt, thank god. but now i dont...
  10. G

    93 explorer rust orange coolant

    I did a head job about 5 months ago, i had a leak between cylinder 5 and 6. got that taken care of and had to flush the radiator for that... Now i went to add a t-stat since i left it out after the head job.. when i pulled off the pipe that houses the t-stat.. the water that came out was...
  11. B

    A/C Blowing Hot Air and Releasing Pressure

    I had a leak and just replaced the A/C line on my 94 Explorer Sport. The A/C was blowing hot air and I assumed it was just due to no R134 in the system. I charged the system and could only get it to 25psi. When I let it run for a second, the pressure release valve on the back of the compressor...
  12. D

    Thermostat

    So kind of like a cook who needs a recipe book I am a mechanic that needs a manual to fix things so when I find an unconnected wire and don't know what it's called I have no clue how to discover where it's supposed to go. I have this problem now. I just finished changing the thermostat in my...
  13. D

    Please help 94 explorer sport/2dr temp gauge not working

    This is my first post on here so thanks for ne1 who helps.well nehow i just bought a 94 sport or 2 door as title says and the temperature gauge does not work at all. Ive never had this problem before so i dont know what to do. The heater blows out hot air and the explorer is not overheating at...
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