Intercooler pump not running - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Hocky · 11-05-2015, 02:11 PM

My intercooler pump doesn't want to stay running. I set it to run all the time in the tune for testing and when I cycle the key, it will run for about 10 seconds and then stop. If I try to command it on via HPT, it does nothing. If I start and run the car, it stays off. Has anyone seen this before? I hate to bring it in for something like this because they will just want to argue about it and not have any idea what they're talking about. When the pump does run for a few seconds, it sounds healthy, so I don't think it is a pump problem.

2013 ZL1 #7860 · 11-05-2015, 03:53 PM

Check the wiring connector on the bottom of the pump, use a little dielectric greese on the connections. Also make sure your coolant is full and there arent air pockets in the line running to the pump.

jayno20 · 11-05-2015, 04:22 PM

When I power mine on via my Aeroforce Interceptor gauge it runs for about 20 seconds then stops for about 3 seconds then runs for another 20 seconds, then stops, you get it...

This is only if the car is off and cool. I am not sure if it does this same thing when running or not. I assume this is stock operation.

Candr3535 · 11-05-2015, 04:41 PM

Check for air in the system. There was a thread about this not to long ago. Mine was doing it and I took cap off supercharger and filled it with Dex-cool now runs all the time when car is running. Worth a try very easy to do

Hocky · 11-05-2015, 04:44 PM

Quote:

Originally Posted by Candr3535

Check for air in the system. There was a thread about this not to long ago. Mine was doing it and I took cap off supercharger and filled it with Dex-cool now runs all the time when car is running. Worth a try very easy to do

Mine did seem quite low and I added some and cycled the key a few times l. Maybe I need to keep adding ? Does the pump have some sort of circuit to prevent running dry? Weird. If I pull the fuse or he relay and replace either, it runs for 10 seconds again and stops.

jayno20 · 11-05-2015, 04:45 PM

Quote:

Originally Posted by Hocky

Mine did seem quite low and I added some and cycled the key a few times l. Maybe I need to keep adding ? Does the pump have some sort of circuit to prevent running dry? Weird. If I pull the fuse or he relay and replace either, it runs for 10 seconds again and stops.

Does it ever start again after the first 10 seconds?

Candr3535 · 11-05-2015, 05:03 PM

It's low on fluid. I'd bet it

Hocky · 11-05-2015, 05:22 PM

Quote:

Originally Posted by jayno20

Does it ever start again after the first 10 seconds?

I heard it turn on once over about a 10-15 minute period while I left it keyed on in the garage, so it probably keeps retrying?

Hocky · 11-05-2015, 06:21 PM

You guys were right. Spent another 20 minutes or so filling while cycling the pump and then it started running full time. I spent about another hour bleeding it through until it sounded clean.

The real question is why was it so low on fluid? Is there a common leak area on these cars? The system doesn't seem to be leaking now that it is cycling.

Candr3535 · 11-05-2015, 07:14 PM

Cool glad it worked out. My guess would be evaporation.. Anyone else have any idea's

Hocky · 11-05-2015, 07:49 PM

It shouldn't evaporate because the system is closed and pressurized.

Candr3535 · 11-05-2015, 08:46 PM

Yes ur right but if I'm not mistaken they also use a distilled water mixture too...

2013 ZL1 #7860 · 11-05-2015, 09:32 PM

Quote:

Originally Posted by Hocky

You guys were right. Spent another 20 minutes or so filling while cycling the pump and then it started running full time. I spent about another hour bleeding it through until it sounded clean.

The real question is why was it so low on fluid? Is there a common leak area on these cars? The system doesn't seem to be leaking now that it is cycling.

Only common leak I have heard of is the connections at the SC lid under the engine cover. This would be very obvious though when you filled it.

GenF-GTS · 11-06-2015, 08:25 AM

The ECU is programmed to stop the pump from running if there isn't enough load on the pump...eg air in the system. The pump is just trying to protect itself.

System start up for the ZL1 is 10 seconds after the car is started the pump will switch on, after which point 10-30sec into running it will then switch off should the system not be bled properly.

2 solutions:

1. get a reservoir makes bleeding the system simple and it is more effective than any other alternative even the next one that i list for you.

2. Get a decent funnel cut the end if needed so it fits tight into the fill port but not too low blocking coolant flow into the charger, fill the funnel full of coolant, have someone start the car when the coolant gets sucked into the system keep pouring more into the funnel if/when you see it stop signal the other person to turn the car off, wait 30 seconds and repeat this step over and over for about an hour until all air bubbles have been removed, letting it settle for 30-60sec between switching it off also lets air out of the system, when you feel you have it perfect get your buddy to rip out the funnel and you jam in the bung plug as fast as possible. Your system is now 98% full and the pump will run, it's probably more full doing it this way than when it left the factory.....reservoir option is better though and = 100% full no air bubbles.

11-05-2015, 02:11 PM	#1
Hocky Drives: Cts-v2 Join Date: Apr 2013 Location: Fishers, IN Posts: 116	Intercooler pump not running My intercooler pump doesn't want to stay running. I set it to run all the time in the tune for testing and when I cycle the key, it will run for about 10 seconds and then stop. If I try to command it on via HPT, it does nothing. If I start and run the car, it stays off. Has anyone seen this before? I hate to bring it in for something like this because they will just want to argue about it and not have any idea what they're talking about. When the pump does run for a few seconds, it sounds healthy, so I don't think it is a pump problem.

11-05-2015, 04:41 PM	#4
Candr3535 Drives: 2013 ZL1 Triple Black Vert M6 #5591 Join Date: May 2013 Location: Galloway,NJ Posts: 747 View My Garage	Check for air in the system. There was a thread about this not to long ago. Mine was doing it and I took cap off supercharger and filled it with Dex-cool now runs all the time when car is running. Worth a try very easy to do __________________ 695 RWHP / 660 RWTQ @ 13.5 PSI Dyna-Tech Headers Ceramic Coated w/Super Flo Cats, JRE Custom Rough Idle Racing Cam Package and 125 RWHP Pulley Kit w/ 28% pulley, Custom Tune by Ted, ID850 injectors, JMS Fuel Booster, NGK Plugs, MSD Plug Wires, Roto-Fab CAI, Roto-Fab Big Gulp, Elite Catch Can, Mild to Wild, 90mm VMaxx Ported Throttle Body, Skip Shift Elim., D3 Coolant Resevoir, Separated Clutch Resevoir, and Fuzzy Red Dice..

11-05-2015, 07:14 PM	#10
Candr3535 Drives: 2013 ZL1 Triple Black Vert M6 #5591 Join Date: May 2013 Location: Galloway,NJ Posts: 747 View My Garage	Cool glad it worked out. My guess would be evaporation.. Anyone else have any idea's __________________ 695 RWHP / 660 RWTQ @ 13.5 PSI Dyna-Tech Headers Ceramic Coated w/Super Flo Cats, JRE Custom Rough Idle Racing Cam Package and 125 RWHP Pulley Kit w/ 28% pulley, Custom Tune by Ted, ID850 injectors, JMS Fuel Booster, NGK Plugs, MSD Plug Wires, Roto-Fab CAI, Roto-Fab Big Gulp, Elite Catch Can, Mild to Wild, 90mm VMaxx Ported Throttle Body, Skip Shift Elim., D3 Coolant Resevoir, Separated Clutch Resevoir, and Fuzzy Red Dice..

11-05-2015, 08:46 PM	#12
Candr3535 Drives: 2013 ZL1 Triple Black Vert M6 #5591 Join Date: May 2013 Location: Galloway,NJ Posts: 747 View My Garage	Yes ur right but if I'm not mistaken they also use a distilled water mixture too... __________________ 695 RWHP / 660 RWTQ @ 13.5 PSI Dyna-Tech Headers Ceramic Coated w/Super Flo Cats, JRE Custom Rough Idle Racing Cam Package and 125 RWHP Pulley Kit w/ 28% pulley, Custom Tune by Ted, ID850 injectors, JMS Fuel Booster, NGK Plugs, MSD Plug Wires, Roto-Fab CAI, Roto-Fab Big Gulp, Elite Catch Can, Mild to Wild, 90mm VMaxx Ported Throttle Body, Skip Shift Elim., D3 Coolant Resevoir, Separated Clutch Resevoir, and Fuzzy Red Dice..

11-05-2015, 03:53 PM	#2
2013 ZL1 #7860 Drives: 2013 ZL1 A6 #7860 Join Date: Apr 2014 Location: CO, USA Posts: 1,279	Check the wiring connector on the bottom of the pump, use a little dielectric greese on the connections. Also make sure your coolant is full and there arent air pockets in the line running to the pump.

11-05-2015, 04:22 PM	#3
jayno20 Go fast, please. Drives: 2019 Corvette ZR1 Join Date: May 2014 Location: Pittsburgh, PA Posts: 2,471 View My Garage	When I power mine on via my Aeroforce Interceptor gauge it runs for about 20 seconds then stops for about 3 seconds then runs for another 20 seconds, then stops, you get it... This is only if the car is off and cool. I am not sure if it does this same thing when running or not. I assume this is stock operation.

11-05-2015, 05:03 PM	#7
Candr3535 Drives: 2013 ZL1 Triple Black Vert M6 #5591 Join Date: May 2013 Location: Galloway,NJ Posts: 747 View My Garage	It's low on fluid. I'd bet it __________________ 695 RWHP / 660 RWTQ @ 13.5 PSI Dyna-Tech Headers Ceramic Coated w/Super Flo Cats, JRE Custom Rough Idle Racing Cam Package and 125 RWHP Pulley Kit w/ 28% pulley, Custom Tune by Ted, ID850 injectors, JMS Fuel Booster, NGK Plugs, MSD Plug Wires, Roto-Fab CAI, Roto-Fab Big Gulp, Elite Catch Can, Mild to Wild, 90mm VMaxx Ported Throttle Body, Skip Shift Elim., D3 Coolant Resevoir, Separated Clutch Resevoir, and Fuzzy Red Dice..

11-05-2015, 06:21 PM	#9
Hocky Drives: Cts-v2 Join Date: Apr 2013 Location: Fishers, IN Posts: 116	You guys were right. Spent another 20 minutes or so filling while cycling the pump and then it started running full time. I spent about another hour bleeding it through until it sounded clean. The real question is why was it so low on fluid? Is there a common leak area on these cars? The system doesn't seem to be leaking now that it is cycling.

11-05-2015, 07:49 PM	#11
Hocky Drives: Cts-v2 Join Date: Apr 2013 Location: Fishers, IN Posts: 116	It shouldn't evaporate because the system is closed and pressurized.

11-06-2015, 08:25 AM	#14
GenF-GTS Account Suspended Drives: none Join Date: Oct 2012 Location: Sydney Australia Posts: 571	The ECU is programmed to stop the pump from running if there isn't enough load on the pump...eg air in the system. The pump is just trying to protect itself. System start up for the ZL1 is 10 seconds after the car is started the pump will switch on, after which point 10-30sec into running it will then switch off should the system not be bled properly. 2 solutions: 1. get a reservoir makes bleeding the system simple and it is more effective than any other alternative even the next one that i list for you. 2. Get a decent funnel cut the end if needed so it fits tight into the fill port but not too low blocking coolant flow into the charger, fill the funnel full of coolant, have someone start the car when the coolant gets sucked into the system keep pouring more into the funnel if/when you see it stop signal the other person to turn the car off, wait 30 seconds and repeat this step over and over for about an hour until all air bubbles have been removed, letting it settle for 30-60sec between switching it off also lets air out of the system, when you feel you have it perfect get your buddy to rip out the funnel and you jam in the bung plug as fast as possible. Your system is now 98% full and the pump will run, it's probably more full doing it this way than when it left the factory.....reservoir option is better though and = 100% full no air bubbles.