just the other night the car over heated. never a problem like this before. its hasnt been driven much. today i drove it again after adding coolant and sure enough it did it again. i checked and i am not getting any heat on the inside. this makes me think it might be a stuck thermostat. any other suggestions?
2002 seville over heat
1 - 9 of 9 Posts
When was the last time you had/did a coolant exchange ?
Exactly where on the gauge did the needle go at "overheat" ?
Did the engine overheat and blow coolant out the cap relief valve ?
Did it overheat because the coolant was low in the first place ?
Did your system supply some or plenty of heat over the winter ?
Have you checked for coolant flow through the purge line ?
Have you noticed any coolant puddles under the car or wet spots on engine parts ?
Is this a sudden occurrence, or have you noticed a tendency for the gauge to move higher during normal driving?
Is the water pump belt, tensioner, drive pulley OK ? (Oooopppss.....Sorry, Joe.)
BTW, The thermostat has nothing to do with the amount of heat in the heater circuit - in the Northstar cooling system (and many others) the heater circuit is the FIRST to receive hot coolant - way before the thermostat opens and allows any flow through the radiator.
Exactly where on the gauge did the needle go at "overheat" ?
Did the engine overheat and blow coolant out the cap relief valve ?
Did it overheat because the coolant was low in the first place ?
Did your system supply some or plenty of heat over the winter ?
Have you checked for coolant flow through the purge line ?
Have you noticed any coolant puddles under the car or wet spots on engine parts ?
Is this a sudden occurrence, or have you noticed a tendency for the gauge to move higher during normal driving?
Is the water pump belt, tensioner, drive pulley OK ? (Oooopppss.....Sorry, Joe.)
BTW, The thermostat has nothing to do with the amount of heat in the heater circuit - in the Northstar cooling system (and many others) the heater circuit is the FIRST to receive hot coolant - way before the thermostat opens and allows any flow through the radiator.
When was the last time you had/did a coolant exchange ?
coolant flush and change last march.
Exactly where on the gauge did the needle go at "overheat" ?
needle went to midway as usual and then very quickly went to far right in the red. over heat warning on dash.
Did the engine overheat and blow coolant out the cap relief valve ?
it did not blow the relief valve. over flow tank boiling.
Did it overheat because the coolant was low in the first place ?
dont know about first time. but today coolant was full.
Did your system supply some or plenty of heat over the winter ?
have never had an inside heat or a/c problem before this.
Have you checked for coolant flow through the purge line ?
no.
Have you noticed any coolant puddles under the car or wet spots on engine parts ?
none present.
Is this a sudden occurrence, or have you noticed a tendency for the gauge to move higher during normal driving?
sudden occurrence. car always ran right in the middle of the heat gauge.
Is the water pump belt, tensioner, drive pulley OK ?
will check tomorrow.
coolant flush and change last march.
Exactly where on the gauge did the needle go at "overheat" ?
needle went to midway as usual and then very quickly went to far right in the red. over heat warning on dash.
Did the engine overheat and blow coolant out the cap relief valve ?
it did not blow the relief valve. over flow tank boiling.
Did it overheat because the coolant was low in the first place ?
dont know about first time. but today coolant was full.
Did your system supply some or plenty of heat over the winter ?
have never had an inside heat or a/c problem before this.
Have you checked for coolant flow through the purge line ?
no.
Have you noticed any coolant puddles under the car or wet spots on engine parts ?
none present.
Is this a sudden occurrence, or have you noticed a tendency for the gauge to move higher during normal driving?
sudden occurrence. car always ran right in the middle of the heat gauge.
Is the water pump belt, tensioner, drive pulley OK ?
will check tomorrow.
tested the block this morning and got that wonderful yellow color. just great. so it appears that i have blown head gaskets or something worse? i have followed the infamous story of the head gasket problems. are there other threads on replacing the head gaskets other than this one below?
http://www.cadillacforums.com/forum...cussion/5052-n-head-gasket-repair-part-i.html
car has just 100,000 miles on it and other than the fog lights not working is great. is it worth fixing myself? obviously having the dealer $4800 do it is not worth it. should i do it or junk the car? any construction converstaion would be appreciated.
what is the best gastket repair kit out there?
http://www.cadillacforums.com/forum...cussion/5052-n-head-gasket-repair-part-i.html
car has just 100,000 miles on it and other than the fog lights not working is great. is it worth fixing myself? obviously having the dealer $4800 do it is not worth it. should i do it or junk the car? any construction converstaion would be appreciated.
what is the best gastket repair kit out there?
An excellent 2002 STS is still worth about $10,000 retail - depending on zip code that figure can go 2,000 either way.
Most members would prefer to use the Northstar Performance head stud kit (www.northstarperformance.com), but many have also had good luck with Norm's Inserts (www.huhnsolutions.com) - they're larger and heavier duty than the original Timesert kits.
In any event, the drivetrain has to come out the bottom of the car because there's a LOT of accurate drilling and tapping to be done. You'll NEED the room to work. Go down to Engines and take a look at Joe Tahoe's thread and pictures on rebuilding a 99 Northstar.
Most members would prefer to use the Northstar Performance head stud kit (www.northstarperformance.com), but many have also had good luck with Norm's Inserts (www.huhnsolutions.com) - they're larger and heavier duty than the original Timesert kits.
In any event, the drivetrain has to come out the bottom of the car because there's a LOT of accurate drilling and tapping to be done. You'll NEED the room to work. Go down to Engines and take a look at Joe Tahoe's thread and pictures on rebuilding a 99 Northstar.
depending on were you are located there are independent shops that do the repair, I would talk to [email protected] and ask him Or if you are mechanicly inclined and have the room and tools do the repair yourself. I would deffantly fix the car
1 - 9 of 9 Posts
