coolbreeze48
Member
- Joined
- December 2, 2009
- Messages
- 12
- Reaction score
- 0
- City, State
- :amlt, north carolina
- Year, Model & Trim Level
- 97 XLT
My 97 explorer 4.0 SOHC engine has a coolant leakage problem that is driving me nuts. By all indications there is no leak, yet I am still losing about a quart of coolant about every 125 miles. I have no signs of coolant under the vevicle, no bubbles in the radiator or no excess pressure build-up either. The reservor is not leaking, the system has been pressure tested using 15 PSI air pressure which it held for 45 mins with no leak seen. I am wondering is there any water passages in the intake manifold that could only be leaking during the intake stroke. I know this may sound stupid, but I am at my wits end. Oh, also there is no coolant mixed with my oil so I would assume that wherever the leak is, it is blowing out the exhaust, However all the plugs look nearly the same in color. Could the head gasket be blown evev though there is no indication of this by observing the coolant with the engine running. I have been crawling around under the vehicle more times than my body wants to allow, but I have found nothing. I have read many of the posts about leakage on this site and though - have found some problems similar to mine, I haven't seen any as haunting. If anyone has any ideas I am open to all suggestions. Does the intake on this particular egine have water ports near the intake air ports. I haven't removed the intake so I have no idea as to it's configuration. Thanks in advance.