Join Date: May 2007
Location: Baltimore Maryland
Here is my situation. I have a 350sbc in my Camaro and up until yesterday it would run between 180-190 no matter the temp. I have an electric fan. 180 therm., and it's wires to come on at 185 and go off at 170. Yesterday I was on the highway and it shot up to 220. I turned the heat on and it dropped to 210. It has never done this until yesterday. I pulled the therm. and it started to open at 170 and fully opened by 185. I ran a compression test on the motor and no problems there. Last night when this was going on the top hose was hard, very very hard. My coolant does not look milky. It's not boiling over. Not down on power. I did notice that when it was hot the oil pressure dropped to 30psi when it's normally 50 and it didn't want to idle very well in gear or park, but when it cooled it idled fine and the oil pressure went back up to 50. I am stumped. Anyone have any suggestions I can try? I am open to anything at this point. Thanks in advance.
Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)