GM TechLink 2007-08-01
Original text and source
Original text
Coolant Leak
This information applies to 2005-07 Escalade, Suburban, Tahoe and Yukon models with Auxiliary Heater (RPO C36).
Some customers may comment on a coolant leak at the rear of the vehicle. Refer to bulletin 07-01-37-002 for details.
This condition may be due to the auxiliary heater hose quick connection leaking, or the retaining clip is broken.
Install an auxiliary heater inlet and outlet quick connector retainer kit. Do not replace the entire auxiliary heater hose line set.
19130031 Retainer Kit, Auxiliary Heater Inlet & Outlet Hose Connector 1 per hose
Refer to the Auxiliary Heater Inlet and Outlet Hose Connector Retainer and Seal Replacement procedure in SI for more information on how to install this service kit (document 1887838).
TIP: The part number in the table is available, but in the parts catalog it is not presently associated with any of the affected vehicles.
Source
- Source
- GM TechLink — Communication from a manufacturer to dealers (summary published by a government agency)
- Reporter type
- Manufacturer
- Source reference
- 2007-08-01
- Country / market
- US
- Language
- en
- Document version
- Version 3 (3 held)
- Note on the source
- Copyright General Motors Corporation. No licence is stated. Held as the headline and short quoted passages with the issue named and linked; the articles themselves are not stored or shown.
Dates
- Incident date
- Unknown
- Received by source
- 2007-08-01
- Added to the source's file
- Unknown: not returned by the source API
- Issued / published
- 2007-08-01
- First observed
- 2026-10-06 08:58 UTC (initial bulk load)
- This version fetched
- 2026-10-09 12:52 UTC