civicdelsol33

Okay its overheating but very oddly. It like only overheats when the fan turns on or Im sitting still, but it seems to be okay when I drive, except every now and then and I have to turn on the heat. Im thinking air might be trapped. I drained my radiator and was surprised when I took off the water pump that a huge amount of antifreeze still came out.

So is it air just trapped or is my Water pump bad? It better not be its brand new oem but I did drop once so maybe Im [freak]ed.

Oh yea heat bull blast is keeping it at normal temp on a 100 degree day so this is really strange. Im kinda lost here.

civicdelsol33

Oh its a 93 Sol Si with a D16z6 all stock just ncase u need to know.

fresheg760

did you get all the air bubbles out of the system? that could be a reason why it is over heating cuz mine was doin it for the longest time too then i changed the theromstat and what pump

itsmejto

probably needs bleeding, thres a screw bleeder on the hose up front, or run it till normal temp with the rad cap off, then top it up and replace the cap.

elektronsi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itsmejto &raquo;</TD></TR><TR><TD CLASS="quote">probably needs bleeding, thres a screw bleeder on the hose up front, or run it till normal temp with the rad cap off, then top it up and replace the cap.</TD></TR></TABLE>

x2, try "burping" your coolant

civicdelsol33

Thought thats what it was because i remembered similiar when I change the thermostat. Thanx for the help. Right after I posted I went out, filled my radiator to the top and no more probs. Just some air in there like I originally thought.