Overheating. I searched 1st
#1
Overheating. I searched 1st
95 camaro z28
New thermostat
new optispark
new water pump
I tested my fans and they both turn on when I put a paper clip in the thing under the dash. I vented the system by unsrewing the nipple in the radiator hose and the car overheats. Also the fans wont turn on by themselves and I replaced the old fan relays with brand new ones. Any ideas?
New thermostat
new optispark
new water pump
I tested my fans and they both turn on when I put a paper clip in the thing under the dash. I vented the system by unsrewing the nipple in the radiator hose and the car overheats. Also the fans wont turn on by themselves and I replaced the old fan relays with brand new ones. Any ideas?
#2
RE: Overheating. I searched 1st
If the fans fail to go on by themselves, check the engine temp sensor (not the temp gage sender), and wiring & connectors from sender to PCM. Then from PCM to fan relays (there a 3 of them) Low speed should go on @ 220 & high speed at over 225. Fans should run anytime the AC is on. Also make sure the air dam under the radiator is in place.
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hoursetraitor
LT1/LT4 Tech
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11-18-2010 10:11 AM