Check engine light indicates thermostat malfunction, how do I repair it?

80,800 MILES • 4.2L • V8 • 4WD • AUTOMATIC
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STRATOMAM
  • MEMBER
  • 13 POSTS
Not sure but I believe thermostat needs to replaced, and I'm not sure how to go about that without significant repair costs.
Jul 16, 2022 at 12:31 PM
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SQM
  • ✓Experienced Mechanic
  • 6,383 POSTS
Hello,

What code are you getting?

I have attached the thermostat replacement procedure below for your reference.

Let me know of any questions.
Thank you.

https://www.2carpros.com/articles/replace-thermostat
Jul 16, 2022 at 3:26 PM
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