My 1997 Firebird keeps overheating, had therostat changed twice, flushed radiator and had heater core replaced and some new hoses. What else could it be, head gaskets? The cooling fans seem to come on after the car reaches 200 degrees. What is the setpoint for them to come on? could sensor need replacing?
Year : 1997
Make : Pontiac
Engine : 3.7
Hello, do they on when the AC is on?........Thanks joey
ok, does it run cooler on the road or in park ?Joe Barfield41074.3469624653
riding down road
its at like 185 on the road? & does it ever boil over in park?
yes and yes
Hi, ok last question, lets say you drive 30 miles ......when you turn off the engine does it boil over or make that sound?
ok ,well its not to much..........id change the temp sensors & the fan relays
36yrs.in Auto Industry, Aamco Trans.Master..
turned out that i had overheated it to the point of warping the heads and had them shaved and head gaskets replaced, prior to this i had replaced three thermostats, radiator cap, radiator, water pump and temp sensors and fan relays. THE CAR IS STILL RUNNING HOT, SO HAD ONE FAN STRAIGHT WIRED TO IGNITION AND CAR IS STILL RUNNING HOT, TEMP GOES OVER 200 QUICKLY. HAD A COLD AIR INTAKE PUT ON CAR BUT THINK ITS NOT INSTALLED CORRECTLY BECAUSE IT COMES STRAIGHT OFF MANIFOLD BEHIND RADIATOR WITH FILTER ATTACHED TO SHORT PIPE. NO ELBOW OR OTHER PIPE. ALSO, THERE ARE NO SIDE RADIATOR AIR DEFLECTORS COULD THIS CAUSE OVERHEATING TOO?
since we last communicated, have replaced fan sensors and relays and radiator and water pump and head gaskets and had head reworked. the car is still overheating. so straight wired one fan to come on when started and stay on. car is still overheating. could a hose be collapsing and vapor locking? does air baffles all have to be in place and on car? no side radiator baffles.
Need a diagram of air baffles and radiator fan shroud placement,
hello just curious when you fill the engine with coolant/water do you use an air lift system or do you just dump the coolant in and go? it could be the their is air in the system and not getting the proper coolant to the engine. this will cause it to over heat till all the air is out of the system. if you have a pressure tester does it hold good pressure and test good with no leaks?
Michigan state certified tech with 18 years exp.