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Hozer 88GTConv · 03-06-2002, 02:26 PM

I had a similar problem. After a rebuild, I put a Hi-Po Edelbrock WP and a 160* Thermostat with a new HD 3-row from NAPA and the motor would never get over 170 degrees. That thermostat would just basically stay open all the time, and no heat would be generated. To make matters worse, I think it ruined my O2 sensors because the motor would run rich all the time thinking it was still in "warmup" mode. At least that's what I think.
The only other thing I could possible think of is that you reversed your supply/return lines to your heater core. Good luck.

03-06-2002, 02:26 PM	#2
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	Thermostat? I had a similar problem. After a rebuild, I put a Hi-Po Edelbrock WP and a 160* Thermostat with a new HD 3-row from NAPA and the motor would never get over 170 degrees. That thermostat would just basically stay open all the time, and no heat would be generated. To make matters worse, I think it ruined my O2 sensors because the motor would run rich all the time thinking it was still in "warmup" mode. At least that's what I think. The only other thing I could possible think of is that you reversed your supply/return lines to your heater core. Good luck. __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy