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1993 Jeep Wrangler no heat

Tiny
MARKFNORRIS
  • MEMBER
  • 1993 JEEP WRANGLER
  • 4 CYL
  • 4WD
  • MANUAL
  • 112,000 MILES
After warm only heat we replaced the thermostat 195 degrees with a new one the same degrees. Now it s cold all the time. The thermostat is installed right. The temp outside is 22 degrees. Even after letting it sit it s only warm the gets cold as soon as the thermostate opens
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Friday, November 21st, 2008 AT 3:54 PM

1 Reply

Tiny
AIRSOFTSOLDRECN9
  • MEMBER
  • 348 POSTS
Check for a blocked heater core. The best way to do this is removal and visual inspection. You can also remove the heater core input and output lines and try flushing water from a garden hose. If sediment appears in the discharge side then it is best to have it professionally flushed or replaced. If you DIY then use vinegar or a similar solvent for dissolving minerals; submerge the heater core in the solution overnight.
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Thursday, November 27th, 2008 AT 12:18 AM

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