dusterchris Posted August 5, 2015 Share Posted August 5, 2015 Hi, I have 1988 jeep comanche pioneer with a straight six and has a 5 speed manual. Currently I'm having over heating problems a lot of the lines for the radiator are cracked, brittle or broke right off. I'm wondering if anyone has some diagrams for the radiator and vacuum setup. Oh yeah, would really low oil cause the motor to over heat after starting up and driving a mile? Link to comment Share on other sites More sharing options...
reubj Posted August 5, 2015 Share Posted August 5, 2015 Which radiator lines are cracked? Link to comment Share on other sites More sharing options...
1989 Eliminator Posted August 5, 2015 Share Posted August 5, 2015 Yes really low oil can cause overheating. It would have to be significantly low but oil keeps all your engine internals lubricated. When there is no lubrication then it becomes essentially metal on metal contact creating heat. Your truck isnt made to cool down an engine due to this. It is made to cool the engine with proper lubrication and operation. If the rubber radiator hoses are not leaking then they are still okay. There are no metal radiator lines in the system. They are all rubber. So they simply are dryrotted and leaking or not connected to where they are supposed to be? If they are not connected to anything then your truck is probably running with no coolant in it...causing the overheating. We need more details to help you though. I would: Fill your truck up with the correct amount of oil. Replace and reconnect any leaking rubber radiator hoses. Fill up your coolant bottle halfway (make sur eto use 50/50 coolant to water ratio). Link to comment Share on other sites More sharing options...
dusterchris Posted August 5, 2015 Author Share Posted August 5, 2015 Reubj the vacuum lines are. This is a project i was taking on for my grandma. I'm really just looking for diagrams to setup the radiator and the vacuum lines. Since its not my truck i don't want to mess anything up any worse then it is. 1989 eliminator all of the hoses are hooked up and good on the radiator besides the lines running to the transmission. Its just two lines but i don't know which tow run where and i don't want to mess anything up. Thank you guys for helping ill provide some pictures in the near future. Link to comment Share on other sites More sharing options...
HOrnbrod Posted August 5, 2015 Share Posted August 5, 2015 See Cruiser's tip #22: http://comancheclub.com/topic/36382-cruisers-renix-tips/ Link to comment Share on other sites More sharing options...
dusterchris Posted August 5, 2015 Author Share Posted August 5, 2015 I didn't know how to put the image itself on here so i put them on and outside site and copied the links in of the comanche. Link to comment Share on other sites More sharing options...
dusterchris Posted August 5, 2015 Author Share Posted August 5, 2015 Thank you hornbrod. That Diagram helped me out alot. Link to comment Share on other sites More sharing options...
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