diff --git a/packages/router/test/integration/guards.spec.ts b/packages/router/test/integration/guards.spec.ts
index f77b4879ca7..8cc8d584bd5 100644
--- a/packages/router/test/integration/guards.spec.ts
+++ b/packages/router/test/integration/guards.spec.ts
@@ -1835,15 +1835,11 @@ export function guardsIntegrationSuite() {
 
       let log: string[];
       const guard1 = () => {
-        return delayObservable(5).pipe(tap({next: () => log.push('guard1')}));
+        return delayObservable(15).pipe(tap({next: () => log.push('guard1')}));
       };
       const guard2 = () => {
         return delayObservable(0).pipe(tap({next: () => log.push('guard2')}));
       };
-      const returnFalse = () => {
-        log.push('returnFalse');
-        return false;
-      };
       const returnFalseAndNavigate = () => {
         log.push('returnFalseAndNavigate');
         inject(Router).navigateByUrl('/redirected');
@@ -1851,7 +1847,7 @@ export function guardsIntegrationSuite() {
       };
       const returnUrlTree = () => {
         const router = inject(Router);
-        return delayObservable(14).pipe(
+        return delayObservable(30).pipe(
           mapTo(router.parseUrl('/redirected')),
           tap({next: () => log.push('returnUrlTree')}),
         );
diff --git a/packages/router/test/router_preloader.spec.ts b/packages/router/test/router_preloader.spec.ts
index e4aa928a72a..0a96db41056 100644
--- a/packages/router/test/router_preloader.spec.ts
+++ b/packages/router/test/router_preloader.spec.ts
@@ -826,7 +826,7 @@ describe('RouterPreloader', () => {
 
       lazyComponentSpy.and.returnValue(
         of(LoadedComponent).pipe(
-          switchMap((v) => new Promise((r) => setTimeout(r, 10)).then(() => v)),
+          switchMap((v) => new Promise((r) => setTimeout(r, 50)).then(() => v)),
         ),
       );
 
@@ -867,7 +867,7 @@ describe('RouterPreloader', () => {
       expect(getLoadedComponent(baseRoute)).not.toBeDefined();
       expect(getLoadedRoutes(childRoutes![0])).toBeDefined();
 
-      await timeout(10);
+      await timeout(50);
       expect(getLoadedComponent(baseRoute)).toBeDefined();
     });