1997 Chevy Cavalier thermostat housing

1997 CHEVROLET CAVALIER
143,000 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
JR LANDRY
  • MEMBER
  • 1 POST
Located at the left side of engine next to power steering pump,>>Question>>> what size are the bolt heads, I am haveing a problem removing them, seems they are put on with an impact wrench, what am I missing?
Jul 16, 2008 at 7:26 AM
Advertisement
Avatar
MMPRINCE4000
  • ✓Experienced Mechanic
  • 8,548 POSTS
Use a 6pt socket and spray the bolts down with PB Blaster and let the set for several hours.

The bolts would be metric heads and they are probably rusted (it is also possible they are Torx, a star shaped female insert). Don't be suprised if they break, but the PB Blaster will help.

When you get them out, if they go into coolant passages coat them with sealer, or antiseize if they don't.
Jul 19, 2008 at 11:32 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle