Coolant leak from thermostat gasket

2000 OLDSMOBILE ALERO
150,000 MILES
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SNEAKFOX
  • MEMBER
  • 3 POSTS
I had a mysterious coolant leak last year and it was tough to find.. I thought it was the water pump.. Turns out the threads on the surge tank fill spout were stripped and coolant was running out the overflow hose..
I've replaced that but since it has full pressure again the thermostat gasket is done.. I know where it is but need the best laid plan as how to GET to it. One bolt is nearly inaccessible.
May 4, 2013 at 9:55 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
remove exaust heate shield, remove coolant pipe housing bolts through manifold, remove collantpipe stud fromoilan remove tire and splash shield remove bolts form transaxle brace assy and brace remove coolant hsg pipe then remove tstat revers for reassy
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Sep 21, 2020 at 3:17 AM
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SNEAKFOX
  • MEMBER
  • 3 POSTS
Response appreciated but it is hard to decipher what you wrote between your spelling and grammar.. I am not a mechanic so the fewer acronyms the better! Thanks!
Sep 21, 2020 at 3:17 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
remove exaust heat shield, remove coolant pipe housing bolts through manifold, remove coolant pipe stud from oil pan remove tire and splash shield remove bolts from transaxle brace assembly and brace. remove coolant housing pipe then remove thermostat. Reverse procedure for installation
Sep 21, 2020 at 3:17 AM
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SNEAKFOX
  • MEMBER
  • 3 POSTS
Thank you very much.. You probably saved me an hour of unnecessary work!
Sep 21, 2020 at 3:17 AM
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