deMideon Posted February 5, 2005 Share Posted February 5, 2005 I have been having a weird problem. The temp will jump up to 250 then in a few seconds drop back down to 195, then it might go up to 225 and sit there for a minute then it can go up or down..., it's not at all consistant, there is no relationship to RPM, and I thought I had a bad thermostat so I've replaced it... I'm running a 195 deg thermostat and a 13lbs cap. I also thought I might have air pockets since the thermostat housing is higher than the cap so I put in a plugged T in the hose at the highest point so I could make sure I had all of the air out of the system... Anyone have any ideas? The only thing I haven't changed is the cap but I didn't think it could do this! Quote Link to comment Share on other sites More sharing options...
innerware Posted February 5, 2005 Share Posted February 5, 2005 could be the gauge or the thermometer sending sensor. Could an engine do that in temperature that fast? Try getting a laser temp sensor that is hand held. Run the engine and stand outside and check the readings. I can't imagine it being a temperature issue but a reading issue. Quote Link to comment Share on other sites More sharing options...
COZY Z COLE Posted February 5, 2005 Share Posted February 5, 2005 http://www.stewartcomponents.com/tech_tips/Tech_Tips_2.htm LARRY Quote Link to comment Share on other sites More sharing options...
deMideon Posted February 5, 2005 Author Share Posted February 5, 2005 Thanks Larry and innerware... The link was helpful.. I probably should go to a 22 - 24 lbs cap... I found out what it was... the thermostat. Yep... I figured I would just go get a stock flow one since both of the ones I tried were high flow models. So I went to Napa grabbed one for half the price of the other ones, put it in and it is fine. Fluctuation of what I would expect... between about 10 degrees. Huh:roll: figures! Quote Link to comment Share on other sites More sharing options...
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