pump and fans running after key off??? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

cdjnight · 04-05-2015, 10:08 PM

Anyone notice their heat exchanger pump and electric fans kick on after key has been turned off? Just noticed it today after some spirited driving and I popped the hood to check my catch can. I'm curious is there logic in the ECM that can we can change temp settings etc...that make this happen?

KaBoom1701 · 04-05-2015, 10:20 PM

If it ain't broke....don't fix it.

cdjnight · 04-05-2015, 10:24 PM

Quote:

Originally Posted by KaBoom1701

If it ain't broke....don't fix it.

I want to know if its easily changed because I'd like to have it in a track only drag tune to be more aggressive in bringing temps down in between rounds when I can put the charger on the battery to keep the electrical system happy.

white ZL1 · 04-05-2015, 10:31 PM

From what I can tell, the key has to be on for the pump to run.
The fans on the other hand,....

KLR ZL1 · 04-05-2015, 10:41 PM

I know that the fans would stay on if your car is running hot after you turn it off. You say the electric water pump stayed on also?

hotlap · 04-05-2015, 10:46 PM

I just ordered the Lingenfelter intercooler, reservoir and manual override (part #L300180000) to do what you describe. The intercooler has two fans whose set points can be adjusted and the manual override will run the fans and pump on a timer to quickly cool down between runs.

This is the foundation for bigger things to come.

http://www.lingenfelter.com/mm5/merc...0#.VSHxS4E8KrU

http://www.lingenfelter.com/mm5/merc...2#.VSHxJ4E8KrU

cdjnight · 04-07-2015, 11:40 AM

Quote:

Originally Posted by KLR ZL1

I know that the fans would stay on if your car is running hot after you turn it off. You say the electric water pump stayed on also?

Yes the pump kicked on after the key was out and I had opened the hood, I put my hand on it just to make sure I wasn't going crazy, even squeezed a hose to see if it was actually flowing. A short time later the two factory fans both kicked on what sounded like a low setting and ran for some time also.

cdjnight · 04-07-2015, 11:42 AM

Quote:

Originally Posted by white ZL1

From what I can tell, the key has to be on for the pump to run.
The fans on the other hand,....

Definitely had the pump running without the key in it and the hood was open

04-05-2015, 10:08 PM	#1
cdjnight Drives: 2013 ZL1 A6 Join Date: Nov 2013 Location: Council Bluffs, Iowa Posts: 266	pump and fans running after key off??? Anyone notice their heat exchanger pump and electric fans kick on after key has been turned off? Just noticed it today after some spirited driving and I popped the hood to check my catch can. I'm curious is there logic in the ECM that can we can change temp settings etc...that make this happen? __________________

04-05-2015, 10:20 PM	#2
KaBoom1701 KaBoom1701 Drives: 13' ZL1 Red M6 Join Date: Dec 2012 Location: I.E. SoCal (Yucaipa) Posts: 8,631	If it ain't broke....don't fix it. __________________ Mods: Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats.

04-05-2015, 10:41 PM	#5
KLR ZL1 H-Town Camaro Club Member Drives: 17 Hyper Blue Metallic KLR-ZL1 Join Date: May 2009 Location: Pearland Tx. Posts: 2,034 View My Garage	I know that the fans would stay on if your car is running hot after you turn it off. You say the electric water pump stayed on also? __________________

04-05-2015, 10:46 PM	#6
hotlap Drives: 20 1LE 2SS M6 Rally Green Join Date: Mar 2014 Location: Franklin WI Posts: 6,634	I just ordered the Lingenfelter intercooler, reservoir and manual override (part #L300180000) to do what you describe. The intercooler has two fans whose set points can be adjusted and the manual override will run the fans and pump on a timer to quickly cool down between runs. This is the foundation for bigger things to come. http://www.lingenfelter.com/mm5/merc...0#.VSHxS4E8KrU http://www.lingenfelter.com/mm5/merc...2#.VSHxJ4E8KrU __________________ "the trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.” Ronald Reagan -

04-05-2015, 10:31 PM	#4
white ZL1 Drives: none Join Date: Aug 2011 Location: DFW area Posts: 1,844	From what I can tell, the key has to be on for the pump to run. The fans on the other hand,....