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2000 deville dhs
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52 Posts
Discussion Starter #1
hi everybody my 2000 deville water pump was bad I replaced it and my coolant tank now im getting the check coolant level sign and my coolant level is fine do anyone know why that message keep coming on can the new coolant tank be bad
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,268 Posts
Re: 2000 caddy deville coolan lights on

hi everybody my 2000 deville water pump was bad I replaced it and my coolant tank now im getting the check coolant level sign and my coolant level is fine do anyone know why that message keep coming on can the new coolant tank be bad
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im getting the check coolant level sign and my coolant level is fine

can the new coolant tank be bad
it is possible - what tank did you get - where did you get it?

check for codes -
don't forget to post the http://www.amazon.com/gp/product/B003S5XCDQ/?ie=UTF8&me=ATVPDKIKX0DERDEFINITIONS -
along with the code numbers -
 

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98 eldo/KD54 w/N37,T96,QA1,D55,DS3,U1Z. U3R next
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2,125 Posts
Re: 2000 caddy deville coolan lights on

How long ago you replaced the pump and tank?
 

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2000 deville dhs
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52 Posts
Discussion Starter #4
Re: 2000 caddy deville coolan lights on

the pump I replaced last month and the tank yesterday and I didn't see no codes
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,268 Posts
Re: 2000 caddy deville coolan lights on

the pump I replaced last month and the tank yesterday and I didn't see no codes
===========================
I didn't see no codes
codes do not appear by themselves -
codes must be "pulled" -
 

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2000 deville dhs
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52 Posts
Discussion Starter #7
Re: 2000 caddy deville coolan lights on

i pulled my codes an there are none and everything is plugged in I got the tank off ebay
 

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2000 deville dhs
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52 Posts
Discussion Starter #8
Re: 2000 caddy deville coolan lights on

today I checked my plug to the coolant tank I don't think its getting power in it do anyone know how to fix this problem
 

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Super Moderator
2003 Deville Base
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4,799 Posts
Re: 2000 caddy deville coolan lights on

Are you checking coolant level with engine hot or cold?
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,781 Posts
Exactly where is your coolant level? You don't have to be too far below half for the message to pop up. Put the coolant level at about 2/3 and see if that helps.
 

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98 eldo/KD54 w/N37,T96,QA1,D55,DS3,U1Z. U3R next
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2,125 Posts
It sounds crazy but it takes some time to get all the air out of the system to get rid of the low coolant message.

I suggest waiting till the car is dead overnight cold, The next start up remove surge tank cap, turn heater on highest temp setting and let run fro about 10-15 in drive way. Shut off and let it cool down again. While it's cooling down the tank coolant level may get low, this is a good time to add coolant. You may have to repeat this maybe twice.

Good luck
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,781 Posts
Yeah I forgot about that. You may have to top it off 2 or 3 times til it purges all the air. That's normal.
 

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2000 deville dhs
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52 Posts
Discussion Starter #16
im gonna try that in the am also I put a light tester on the wire and it didn't light up should the wires be hot
 

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2001 Deville DTS
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102 Posts
Hey I am having the exact same problem, replaced my tank with a new one from rock auto and still get the check coolant level when the level is good.

I cut a new plug of a doner car today and splice it in to the existing wiring and ground the black wire to the body to see if that works?
 
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