HELP! Big coolant and idle issue | Ford Explorer Forums

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HELP! Big coolant and idle issue

BlakeWinstel

Member
Joined
October 21, 2013
Messages
35
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City, State
Louisville, Kentucky
Year, Model & Trim Level
2003 Ford Explorer
Hey guys, Blake here.

SO here's the new issue with the Exploder. For some apparent reason, I am losing coolant all the time, but it's not usually in the ground, it's on the underside of the engine. I'm talking like a gallon every other day.

I just recently installed my 3rd thermostat housing and after I did that, my coolant system went nuts. I fired up the truck and let it idle, and coolant was pushing through the clamped hoses and out of the sensor hole, with the sensor tightened into it.

I have noticed my temp gauge takes forever to warm up, then it bounces around from overheating to not, back down to C, then skyrockets to H. The funny part is, is I know the readings are correct. When it hits H the motor gets really loud and the coolant tank starts humming. When it hits C, it's all bogged down and there's weird ticking noises, like a power steering pump being maxed out.

I looked into the humming and found it could be the coolant cap failing to pressurize the system properly, does this sound about right to you all?

ALSO, I have a small valve cover gasket leak, but have had it for about 1.5 years. I've always had to top off oil and antifreeze every month, but not every day.

The initial start of the vehicle is very sluggish (could be that it's 5 degrees here and I have 650 Cold Cranking Amps) and the idle is rough as hell for about 10 minutes. Once the car heats up, the idle is fine. BUT THE HEATER DOESN'T WORK UNTIL HIGH RPMS. (Terrible for a 5am drive to work).

Could the heater thing be a water pump issue? The heater core seems to be fine, also thinking it could be a Blend Door Actuator, as the air blows through all vents at all times, even though the actuator is whirring and obviously on .

I'm just trying to narrow everything down because I'm balling on a budget and don't have money to just throw at her like I used to. (AKA College is back in session.)

Thanks guys!! :us:
 



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Ok, it sounds like you could have a head gasket leak, you need to first find out where that coolant is leaking, also make sure the thermostat was installed correctly, next your temp sensor is probably going bad, there is little o-rings that are supposed to be in there to prevent leaking, check and see if they are still there. Good luck!
 






Ok so today after changing the radiator cap, filling the coolant system, and driving the truck for about 100 miles it finally overheated again. This time when the tank popped and started gurgling I pulled over and immediately opened the hood. There was coolant all over the inside of the engine bay and steam pouring out from under the cap. I may have to take the reservoir off and check for cracks, but it is sounding like a headgasket now because of the bubbling coolant.
 






What you can do is smell the coolant and if it has any tiny scent of gas/fumes the head gasket is trashed, you.can also check your oil for a milky looking oil, kind of like chocolate milk, if it's any other color than golden, black or brown you got issues.
 






Ok so today after changing the radiator cap, filling the coolant system, and driving the truck for about 100 miles it finally overheated again. This time when the tank popped and started gurgling I pulled over and immediately opened the hood. There was coolant all over the inside of the engine bay and steam pouring out from under the cap. I may have to take the reservoir off and check for cracks, but it is sounding like a headgasket now because of the bubbling coolant.

Good luck buddy!
 






Verified today that it is in fact a blown head gasket. But i have also found a product that promises to fix the problem or DOUBLE MONEY BACK. So, I bought it. I just need one person to tell me that they would like a write up, and I will do it, as I am installing tomorrow!
 






Verified today that it is in fact a blown head gasket. But i have also found a product that promises to fix the problem or DOUBLE MONEY BACK. So, I bought it. I just need one person to tell me that they would like a write up, and I will do it, as I am installing tomorrow!

Well in that case I would love a write up! :D I've never used any of that stuff in the bottle so it will be interesting to see how well it works I've see one for around 60-80$ and "heard" it was a "very good" one. Again good luck! :)
 






Thanks Anthony! I'm starting it now, so I'll let you know when the write up is done. I'm thinking about starting a youtube channel that will cover every little thing I do to my Explorer. I know most people learn visually so I think I could make it cover anything anyone could possibly request to see done! I've done almost everything except the transmission, already lol
 






What product did you get? I just used blue devil and it worked for me. I used the more expensive one that required a little prep work.
 






I used Bar's Leaks. They put out a new product that is carbon-fiber reinforced and outdoes Blue Devil side by side apparently every time.
 






Thanks Anthony! I'm starting it now, so I'll let you know when the write up is done. I'm thinking about starting a youtube channel that will cover every little thing I do to my Explorer. I know most people learn visually so I think I could make it cover anything anyone could possibly request to see done! I've done almost everything except the transmission, already lol

Sounds awsome Blake!, I'm sure alot of people would enjoy seeing some diy video's on the 02-05 models! :D I've changed my trans fluid and differential, a little messy and stinky but it was really simple, it should be a piece of cake for you! Good luck, I hope that stuff works! :)
 


















Hey guys, just wanted to let you all know the write up has been posted, go let me know what you think!!

http://www.explorerforum.com/forums/showthread.php?p=3501572#post3501572

Also made a video for those that may not understand everything.

https://www.youtube.com/watch?v=DdAKf-nV0t4

Have a great one! :us:

Awsome video man! Congratulations on the fix, I'm really thinking that stuff will hold up very nicely, you know you could have gave me a shout out! :D lol jk! Very nice detailed diy! :)
 






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