Having problems with your GMC Sonoma ?

All of a sudden I am getting an overheat indication on the temp gauge in my 1996 GMC Sonoma 4cyl Blower is blowing cold air, Top radiator hose is HOT, heater hoases are cool to the touch. Lower radiator hose is just warm Put in a new thermosat last fall. Engine starting rouning rough on startup but smoothes out after run for a short time. I think the heating problem is a faulty thermostat, Your help is appreciated

Posted / edited by AnonymousUser on : 21-08-2017

Answers :

Take the thermostat out and put it in a small pot and heat it on the stove top watching to see if it open when it gets hot. If it hasn't opened all the way by the time it boils its bad
Repair Help & Product Troubleshooting for GMC Sonoma

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0103 seconds