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I just changed the thermostat and car runs hotter now than before

Tiny
CHRISL1982
  • MEMBER
  • 1999 SATURN SL2
  • 13,000 MILES
When I give it gas it almost stalls out.
Sunday, April 1st, 2012 AT 6:32 PM

24 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Did you get all the air out? Make sure the level is correct.
As far as the hesitation, that sounds like another issue.

Roy
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Sunday, April 1st, 2012 AT 6:43 PM
Tiny
CHRISL1982
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  • 12 POSTS
The coolant isn't even getting into the motor. Could it be a vacuum hose?
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Sunday, April 1st, 2012 AT 6:52 PM
Tiny
ASEMASTER6371
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Thats because of the air in the system. Did you fill the coolant with the thermostat out till the coolant came out and then install the thermostat?

Roy
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Sunday, April 1st, 2012 AT 7:07 PM
Tiny
CHRISL1982
  • MEMBER
  • 12 POSTS
I had changed the thermostat a few days ago. I filled everything up yesterday and the hose from the reservoir is not getting into the motor at all. Is the water pump bad?
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Sunday, April 1st, 2012 AT 7:16 PM
Tiny
ASEMASTER6371
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It could be. You need some help from a shop to verify. Have not seen any saturns with broken impellers.

Roy
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Sunday, April 1st, 2012 AT 7:31 PM
Tiny
CHRISL1982
  • MEMBER
  • 12 POSTS
I laid some cardboard under it while I'm visiting family today. If the water pump is bad, it will leak right?
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Sunday, April 1st, 2012 AT 7:41 PM
Tiny
ASEMASTER6371
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No, not if the impeller is not working.

Roy
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Sunday, April 1st, 2012 AT 8:04 PM
Tiny
CHRISL1982
  • MEMBER
  • 12 POSTS
What is the impeller and where is it located?
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Sunday, April 1st, 2012 AT 8:10 PM
Tiny
ASEMASTER6371
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On the back of the water pump and that circulates the coolant.

Roy
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Sunday, April 1st, 2012 AT 8:11 PM
Tiny
CHRISL1982
  • MEMBER
  • 12 POSTS
Do I have to take the water pump off to fix it?
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Sunday, April 1st, 2012 AT 8:14 PM
Tiny
ASEMASTER6371
  • MECHANIC
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Yes, you do. Thats assuming it is the problem.

Roy
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Sunday, April 1st, 2012 AT 8:15 PM
Tiny
CHRISL1982
  • MEMBER
  • 12 POSTS
Ok. Ur a big help buddy. I'm hoping I can fix it myself. Too bad I can find an income based mechanic lol.
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Sunday, April 1st, 2012 AT 8:22 PM
Tiny
ASEMASTER6371
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Good luck
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Sunday, April 1st, 2012 AT 8:30 PM
Tiny
CHRISL1982
  • MEMBER
  • 12 POSTS
Would it be cheaper to just get the new water pump
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Sunday, April 1st, 2012 AT 8:45 PM
Tiny
ASEMASTER6371
  • MECHANIC
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That is the only way it comes. You cannot buy an impeller

Roy
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Sunday, April 1st, 2012 AT 9:00 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Just to add to this one those model saturns dont trap air when servicing the cooling system you just warm them up and top them off. As far as the impeller wearing away on the water pump I have worked for saturn for over 16yrs working on those cars and have never seen one do that. So I really doubt yours did that. How do you know the coolant isnt getting I to engine?Are both radiator hoses upper and lower getting really hot?Also whats going on with the way its running?Any codes in the computer?
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Sunday, April 1st, 2012 AT 9:57 PM
Tiny
CHRISL1982
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  • 12 POSTS
Yes the hose coming from the radiator to the intake on the drivers side gets extremely hot. I took the little hose that runs from the reservoir to the engine off and nothing is going thru at all.
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Sunday, April 1st, 2012 AT 10:21 PM
Tiny
SATURNTECH9
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The hose from the radiator on the drivers side goes to the head not intake. Also is the lower hose getting hot when the coolant gets really hot?
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Sunday, April 1st, 2012 AT 11:09 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Also is the belt spinning the water pump pulley?
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Sunday, April 1st, 2012 AT 11:10 PM
Tiny
CHRISL1982
  • MEMBER
  • 12 POSTS
It does get hot but not like the other. I didn't even know wat the water pump looked like until today so I didn't pay any attention to it since. I didn't know wat I was looking for.
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Sunday, April 1st, 2012 AT 11:14 PM

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