diff --git a/eng/pipelines/coreclr/libraries-gcstress-extra.yml b/eng/pipelines/coreclr/libraries-gcstress-extra.yml
index 1cc55f54a830b..58b4370724df3 100644
--- a/eng/pipelines/coreclr/libraries-gcstress-extra.yml
+++ b/eng/pipelines/coreclr/libraries-gcstress-extra.yml
@@ -2,13 +2,14 @@ trigger: none
 
 pr: none
 
-schedules:
-- cron: "0 10 * * 0"
-  displayName: Sun at 2:00 AM (UTC-8:00)
-  branches:
-    include:
-    - master
-  always: true
+# This pipeline currently has too many failures to be enabled by schedule.
+# schedules:
+# - cron: "0 10 * * 0"
+#   displayName: Sun at 2:00 AM (UTC-8:00)
+#   branches:
+#     include:
+#     - master
+#   always: true
 
 jobs:
 #
diff --git a/eng/pipelines/coreclr/libraries-gcstress0x3-gcstress0xc.yml b/eng/pipelines/coreclr/libraries-gcstress0x3-gcstress0xc.yml
index 622a4c315f840..b11e314a983ec 100644
--- a/eng/pipelines/coreclr/libraries-gcstress0x3-gcstress0xc.yml
+++ b/eng/pipelines/coreclr/libraries-gcstress0x3-gcstress0xc.yml
@@ -2,13 +2,14 @@ trigger: none
 
 pr: none
 
-schedules:
-- cron: "0 10 * * 6"
-  displayName: Sat at 2:00 AM (UTC-8:00)
-  branches:
-    include:
-    - master
-  always: true
+# This pipeline currently has too many failures to be enabled by schedule.
+# schedules:
+# - cron: "0 10 * * 6"
+#   displayName: Sat at 2:00 AM (UTC-8:00)
+#   branches:
+#     include:
+#     - master
+#   always: true
 
 jobs:
 #