cooling porblems on B16...II
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cooling porblems on B16...II
Left the house to meet people for dinner, guage says cool....raced a hatch on the interstate, guage says cool...turn into the parking lot guage says cool but then rapidly risies and doesnt stop until it hits the H so i turn the car off and go inside and eat. Car sat for about an hour & a half so the car was cold, i mean the needle was below the C. Heres where it gets wierd...I went from the Hooters on BBD to DM and Fletcher and the needle never budged, never made it above the C. While sitting at the light the needle begins to rise but only makes it to very first black line at the bottom of the guage then immediatly drops back down below the C. When the light turned green, i hit a couple of small bumps and the guage immediatly went up to "normal running temp" and stayed there until i reched my destination. As i left for home, the car sat running while i talked for about 5 min and the needle never rose above normal temp. About 2 miles down the road the needle begins to rise until it hits the top, past the H. From that point on, the needle would fall and rise between normal and BOOM about 2-3 times. Got home, lifted the hood...valve cover is hot but, not hotter than normal...top hose is very hot to the touch...bottom hose is hot but, i could hold onto it much loger then the top....i can hear the water in the radiator "boiling" but, the overflow is just warm. Since i have never inspected my cooling system immediatly after driving all night, im not sure if these conditions are normal. Keep in mind that during all of this, the car ran VERY well and was running without a thermostat and a "looped" fan switch(just until i have the time to find out WTF is going on)!! Any CONSTRUTCTIVE help is appreciated!!!
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I removed the thermostat temporarily because it was acting like the therm. was sticking and i was away from home after business hours, just havent had the time to replace it! Could you or anyone else give me and idea of the grounds i need to check, other than the obviouse ones of course!
Registered User
Joined: Sep 2001
Posts: 2,540
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there arent that many grounds, theres the main one on the tranny and i believe theres also one on the thermostat housing. theres a couple more but just check those two. also check you engine coolant tempature sensor. its right below your distributor. its the little one with a little black sleeve over it. and i think theres also anohter one right next to it that has a plug going to it.
SOHC Vtec
Joined: Sep 2002
Posts: 21
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doesnt know if this helps but i kinda had the same problem the day i put my b series into my civic. Whenever i was driving the car wouldnt over heat. but the second i stopped at a light, that needle went up quick. I had figured ouyt that there was air in the hoses and it wasnt allowing for the fluids to cycle through the motor. I finally figured out how to bleed the hoses and checked for leaks. after a bit of tampering with bleeding and adding a little more liquid because i was low, everything turned out perfect. You may just want to check your fluid levels and squeeze the hoses to make sure that there is fluid and not air in them, if there is air, then your thermostat will not react properly and your motor will over heat. 
Chris
AIM:GotVTEC20
Chris
AIM:GotVTEC20
