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Cooling pump probems

Stefan T

Member
Jan 31, 2015
344
177
Sweden
I have get a message Battry cooling problems charging limited

And my cooing pump is not running
The level is ok of the coolant

IWre is the placed on the roaster?
What is that for pump and what car more car use it or were can i get a new one?

or have somone a better ide of the problem

Thanks for tips
 

Stefan T

Member
Jan 31, 2015
344
177
Sweden
I Dont find anny boken fuse
I driven The car carefully home and i try to charge it but it refse
I drove 300 km 190 miles
So i have only. 90 ideal km left
Real carful drivning it posible to drive it SC
I shall see if it posible to carge to morrow when have cool down
 

hcsharp

Active Member
Jun 7, 2011
3,429
1,520
Vermont
Thanks! If you'd be able to take some pictures many thanks in advance too. I might be looking at a pump replacement myself as I discovered a small leakage @ the pump. Not bad, but it's there.

Yes^^ Thanks in advance for taking pictures. Try to find out if the coolant heater is integral with the pump, or if it's a separate part. If it's separate, see if you can take some pics of that, too. Thanks:smile:
 

Stefan T

Member
Jan 31, 2015
344
177
Sweden
I have get new pumps

IMGP6796.JPG

IMGP6797.JPG


The pump is not Mustang / Merceders intercooler pumps

IMGP6800.JPG


The next isue is to lift roadster
But with a jack and lift take of the rear wheels and lift in the front lifting points and under the coilovers

IMGP6801.JPG

IMGP6802.JPG

IMGP6803.JPG


I took of the bottom plate under the battry
But there was no pumps

After some look i fund the hoses and the goes up under the right side front part of the rear fender wall

IMGP6804.JPG

IMGP6805.JPG


The pump is placed in serie and the heater is place after the pumps


I disconect the sockets an check the voltage in the contact
The volage was only 1V not 12V i test to put in the new pumps on the wires and they didn't start ether
Can some help me with a electrical diagram were the supply come from?

And last a photo of uncommon combination of cars

IMGP6810.JPG


A tesla roadster on the lift and 9 passinger Edsel Village 1959 under and a RHD ragtop VW 1960

Please some tips about the power supply of the pumps
 
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Stefan T

Member
Jan 31, 2015
344
177
Sweden
A little check of the pumps
0392023014 bosch number seams to be right and it is a brushless pump
I took a OHM meter and messure the restance of the new pump and was in Mohm class that count up and out and i flip the poles and the did the same

I have check the signal out to the pumps and messure only 1V
 

Mattias

Member
Mar 15, 2015
21
0
(Sweden)
Are you measuring when the pump is supposed to be enabled?

Otherwise the 1 Volt could be a signal from the PCM to search for the pump being connected, and it would never enable output to the DC-motor without sensing the appropriate resistance from the Pump itself.

It should be a two pole connector, with one being the feed (12 Volts) and the other side grounded by the PCM when the car enables the pump.
 

jeremyz

Member
Apr 5, 2013
257
94
.
I got a coolant error message. The service center looked into it and they said the message was popping up because the pump was drawing less current than it was supposed to. This is either an indication that the coolant is very low (which it wasn't) or the internals of the pump are wearing out. Their quote to replace it was $684.56.

PUMP-ESS COOLANT PCA12 (2004503) $373.73
Labor $280
Tax $30.83

The pump price is a little outrageous if the pump is the bosch pump that I can buy on Amazon for less than $100.

I talked to the technician about it. He said it was really easy to replace because it just involved two hoses, an electrical connector and had reasonable access.
 

ML Auto

Member
Mar 8, 2014
763
832
SW Florida
Yes^^ Thanks in advance for taking pictures. Try to find out if the coolant heater is integral with the pump, or if it's a separate part. If it's separate, see if you can take some pics of that, too. Thanks:smile:

Here are some pics of the pump and heater. The first 3 are 2.0/2.5. The last 3 are from a 1.5 which only has one pump.


tesla waterpump 002.JPG
tesla waterpump 003.JPG
tesla waterpump 004.JPG
tesla waterpump 005.JPG
tesla waterpump 006.JPG
tesla waterpump 007.JPG
 
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Stefan T

Member
Jan 31, 2015
344
177
Sweden
I have changed the pumps and refiled the coolant and vacuum sucked the system
But The larm is still there and the car refused to charge
I think i need to restart the system om erase the codes
How shall reache the service menues?
I dont have anny codes fot that please can some ont help me
 

spaceballs

Member
Sep 17, 2013
651
143
Sammamish
I have changed the pumps and refiled the coolant and vacuum sucked the system
But The larm is still there and the car refused to charge
I think i need to restart the system om erase the codes
How shall reache the service menues?
I dont have anny codes fot that please can some ont help me


Have you disconnected the 12v battery and pulled the ESS service disconnect, then plug it all back in?
 

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