Cooling issue...puzzled 01 SS
08-24-2016, 09:36 PM
#1
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Cooling issue...puzzled 01 SS So I have my 01 Camaro SS CAM only car.
well cam and supporting mods,bolt-ons etc;
so my tuner noticed that the temps were running high when he had the car, now I got the car back, start playing around with it and ultimately decided to replace the fan assembly since it was cheap and the car is 15 years old.
Who can break down for me which side fan should be on under which conditions...
The car is tuned to have the fans kick on at lower temp, so ideally the car should be running 175-185 maybe 190.. I am running like 212 without A/C on and like almost 230 with the AC on.
the car had 1 previous owner, I found a jumper wire tonight going from the far left fan relay (out of the 3) to another part of the harness...
I need to play around with that more but will also replace the 3 relays as a safety precaution.
is it possible that the ASP underdrive pulleys slowed my water pump down and it cant handle the cooling?
The driver side fan is NOT on when the passenger side is ON. even if the temp is high.
well cam and supporting mods,bolt-ons etc;
so my tuner noticed that the temps were running high when he had the car, now I got the car back, start playing around with it and ultimately decided to replace the fan assembly since it was cheap and the car is 15 years old.
Who can break down for me which side fan should be on under which conditions...
The car is tuned to have the fans kick on at lower temp, so ideally the car should be running 175-185 maybe 190.. I am running like 212 without A/C on and like almost 230 with the AC on.
the car had 1 previous owner, I found a jumper wire tonight going from the far left fan relay (out of the 3) to another part of the harness...
I need to play around with that more but will also replace the 3 relays as a safety precaution.
is it possible that the ASP underdrive pulleys slowed my water pump down and it cant handle the cooling?
The driver side fan is NOT on when the passenger side is ON. even if the temp is high.
08-26-2016, 07:16 AM
#3
Both fans should run at the same time. If you only have one fan running at a time something is going on. Is the car running hot while driving or just sitting ?
This might help you trace some wires... https://ls1tech.com/forums/forced-in...ring-help.html
This might help you trace some wires... https://ls1tech.com/forums/forced-in...ring-help.html
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08-28-2016, 06:22 PM
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Okay so I went to my shop today and did some testing...
-relay 1 command, low fan goes on
-relay 2,3 command high fan goes on
-I checked the low and Hi fan signal wire that run from the PCM to the relay box, they both commanded the fans on as well
-once the car got to the temperature that was supposed to trigger both low and Hi fans, the corresponding low and high fan wires from the PCM had ground (fans are ground triggered)
then car starts heating up and low fan (driver side) did not come on. the car went up to 238, it does not come on with the A/C on or the A/C off. but the signal wire is sending the ground to the relay. The relays are new.
what stumps me is that the fan works when commanded or probed
unless there is a break in a wire between the relay for the low fan and the actual low fan pigtail, and it makes contact and doesn't (fan going on n off)
-relay 1 command, low fan goes on
-relay 2,3 command high fan goes on
-I checked the low and Hi fan signal wire that run from the PCM to the relay box, they both commanded the fans on as well
-once the car got to the temperature that was supposed to trigger both low and Hi fans, the corresponding low and high fan wires from the PCM had ground (fans are ground triggered)
then car starts heating up and low fan (driver side) did not come on. the car went up to 238, it does not come on with the A/C on or the A/C off. but the signal wire is sending the ground to the relay. The relays are new.
what stumps me is that the fan works when commanded or probed
unless there is a break in a wire between the relay for the low fan and the actual low fan pigtail, and it makes contact and doesn't (fan going on n off)
08-30-2016, 01:02 AM
#13
This is going to sound silly, but remote your radiator and blow it out with a hose and compressed air. Once it is out do the same thing for the ac condensor 15+ years of crud and bent fins really reduces how efficient they are. I had this same problem and this solved it.
