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No heat from heater?

Tiny
CHARDY86
  • MEMBER
  • 2 POSTS
  • 2003 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 102,653 MILES
First I noticed the heater was not blowing hot, a day later engine running hot and low coolant light on 2 mos ago we had to put a new water pump on and also had to put new lifters in, any suggestions
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Thursday, December 19th, 2019 AT 1:54 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hi, Are you losing coolant? Check for leaks. Check the heater hoses, see if they are hot? Check for coolant flow through the radiator?
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Thursday, December 19th, 2019 AT 1:54 PM (Merged)
Tiny
CHARDY86
  • MEMBER
  • 2 POSTS
Losing coolant somewhere, filled the day b4 yesterday, maybe 1.5 gallons, its almost empty today cant see any leaks, I did feel the heater hose 1 hot 1 cold
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Thursday, December 19th, 2019 AT 1:55 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
You may need to check the intake manifold gasket for the coolant leak. As far as the heater hoses, maybe the heater core is blocked or a valve that is preventing circulation through the heater core.
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Thursday, December 19th, 2019 AT 1:55 PM (Merged)
Tiny
RELLIE89
  • MEMBER
  • 2 POSTS
I have a 2003 Pontiac grand am replace the thermostat and still no heat need help.
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Monday, January 29th, 2024 AT 8:29 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,909 POSTS
Do you mean no engine heat or the car's heater is not working?
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Monday, January 29th, 2024 AT 10:16 AM

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