Thermostat installation

Tiny
SKYTROOPER82
  • MEMBER
  • 2004 CHEVROLET CAVALIER
  • 54,234 MILES
Replaced water pump and thermostat. I have no heat inside the car. Not sure if I put the thermostat in the proper position. The manual states to put the thermostat in spring first. I cannot find any clear illustration that depicts how the thermostat sits inside the housing. Inside the housing is a black plastic piece not sure what it does the haynes manual does not explain the purpose. Any help with pictures would be helpful.
Thursday, December 29th, 2011 AT 11:59 PM

5 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Did you try it both ways? Will it fit either way? Usually they only fit 1 way. Such a hurry you forgot how old 1 was in there?
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Friday, December 30th, 2011 AT 12:29 AM
Tiny
SKYTROOPER82
  • MEMBER
  • 4 POSTS
I thought I remember how it went in. If the thermostat is good and is placed in the right way. Why is cold air coming out the vents? Am I missing something?
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Friday, December 30th, 2011 AT 1:04 AM
Tiny
FIXITMR
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Check temp of hoses going in/out of eater core at firewall. They should both be hot when engine is up to normal temp.
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Friday, December 30th, 2011 AT 6:33 AM
Tiny
SKYTROOPER82
  • MEMBER
  • 4 POSTS
One heater hose is warm the other cold. Is there a diagram for routing the heater hoses.
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Saturday, January 7th, 2012 AT 4:03 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
See if there's a plastic valve in 1 of hoses going to core. If vac line to it is ok and has suction when heat is chosen.
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Tuesday, January 10th, 2012 AT 5:54 AM

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