: 2005 CTS-V cooling



MacAttack5000
10-20-07, 11:52 AM
Hi y'all. Very first time on here and my post may be old/new news to you. My check coolant light keeps coming on every three days. Check the coolant tank, down 3/4's, top it up and three days later it's down again. I smell the anti-freeze when the car is stopped, no odor from tailpipes, and nothing on the ground. However yesterday after a short drive, then parking the car I saw steam from the hood, checked, and saw the cooling tank cap was blown off, tank was full, but I hadn't added any anti-freeze for four days. Obviously signals a pluggage somewhere but I have no clue where. Any ideas? Really need to know ASAP and thanks to all.:bomb:

MacAttack5000
10-20-07, 11:54 AM
P.S. Forgot to add. My Caddy only has 21,000 k's on it.

Twitch
10-20-07, 11:58 AM
A bunch of us had the slow leak. My dealer just changed the radiator. They know its a problem, he had it in stock.

The Tony Show
10-20-07, 12:18 PM
:yeah:

If you shine a light down into the splash pan below the radiator you'll see coolant collecting there. Early build radiators tend to leak around the sides, and there's a bulletin to replace it with a new design.

cts-vroom!
10-20-07, 02:36 PM
:yeah:

If you shine a light down into the splash pan below the radiator you'll see coolant collecting there. Early build radiators tend to leak around the sides, and there's a bulletin to replace it with a new design.

Yep, just picked mine up from the dealer with a new radiator.:D

darkman
10-20-07, 03:13 PM
Could be:


Cooling System - Coolant Leaks From Radiator

Bulletin No.: 05-06-02-005A
Date: November 03, 2005
TECHNICAL
Subject:
Coolant Leak (Replace Radiator (http://www.alldatadiy.com/alldata/AFI~V9705380~C40138~R0~OD~N/0/108596970/110536423/110536424/110536428/34853741/100411974/34856156/34856286))

Models:
2004-2005 Cadillac CTS-V

Built Prior To and Including VIN Breakpoint 50193910
Supercede:
This bulletin is being revised to update the part information with a new part number. Please discard Corporate Bulletin Number 05-06-02-005 (Section 06 - Engine/Propulsion System).
Condition
Some customers may comment on a coolant leak. Upon investigation, the technician may find that the leaks appears to be coming from the lower radiator (http://www.alldatadiy.com/alldata/AFI~V9705380~C40138~R0~OD~N/0/108596970/110536423/110536424/110536428/34853741/100411974/34856156/34856286) tank near the lower hose outlet.
Cause
The cooling system (http://www.alldatadiy.com/alldata/AFI~V9705380~C40138~R0~OD~N/0/108596970/110536423/110536424/110536428/34853741/100411974/34856156) may experience increased internal pressures during sustained high RPMs at elevated operating temperatures. This increased pressure may cause a weakening of the core-to-tank mating surface.
Correction
Replace the radiator (http://www.alldatadiy.com/alldata/AFI~V9705380~C40138~R0~OD~N/0/108596970/110536423/110536424/110536428/34853741/100411974/34856156/34856286) with a redesigned radiator, P/N 19129908.
http://www.alldatadiy.com/alldata/AFI~V9705380~C40138~R0~OB0~P3R0H~N/0/108596970/110536423/110536424/110536428/34853741/34850750/42063452/121037109/119097885/119097886