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2000 Pontiac Grand Am overheating

Tiny
DANGEROUS228
  • MEMBER
  • 2000 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 20,700 MILES
I have change thermostat, ect sensor. Had a compression test an change all the gaskets, radiator no leaks or cracks, & the water pump is not leaking. I need help badly
Friday, September 10th, 2010 AT 11:23 PM

7 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
You didn't say so but from your tone I assume you are still losing coolant. Once an engine is severely overheated once, permanent damage can be done pretty easily. You likely have head gasket issues now. You will need to have some chemical tests to the coolant to determine if that is the case or not.
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Saturday, September 11th, 2010 AT 7:11 AM
Tiny
DANGEROUS228
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  • 4 POSTS
But I have change the headgaskets, lower & upper intake gaskets, & the vavle cover gaskets. I'm still overheating. Don't no what 2 do next
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Saturday, September 11th, 2010 AT 9:32 AM
Tiny
WRENCHTECH
  • MECHANIC
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Did you do send the head to the machine shop and use new head bolts or just replace the gasket?
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Saturday, September 11th, 2010 AT 10:55 AM
Tiny
DANGEROUS228
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  • 4 POSTS
Yes I did. & Its jus sits at 200-220 degress. But when I unplug the ect sensor the fan kicks on & I have change that twice.
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Saturday, September 11th, 2010 AT 11:12 AM
Tiny
WRENCHTECH
  • MECHANIC
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OK, what's the problem then? That sounds perfectly normal.
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Saturday, September 11th, 2010 AT 11:15 AM
Tiny
DANGEROUS228
  • MEMBER
  • 4 POSTS
It normal sitting at 200-220 degrees
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Saturday, September 11th, 2010 AT 11:20 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
Yes, definitely. The fan isn't even programmed to come on until about 225.

Make sure you clear the codes you set by unplugging that coolant sensor.
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Saturday, September 11th, 2010 AT 11:22 AM

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