Car overheating, antifreeze missing w/Bar's Leaks head gasket fix

Asked by Sep 07, 2016 at 06:37 PM about the 1998 Cadillac DeVille Base Sedan

Question type: Maintenance & Repair

99 Cadillac DeVille 140k miles, I've replaced since
May 2016: original coolant reservoir, thermostat
2x's, water pump, top & bottom radiator hose,
tensioner & belt, major tune up and still antifreeze
is evaporating from reservoir causing overheating
temps up to 255 degree. Yesterday I used head
gasket fix costing $44 and 1 1/2 gallons of
antifreeze to seal any possible cracks in gaskets  
but today tank is bone dry. The car runs excellent  
but we did bypass the heating coil last week to see
if that would help, NOPE. I'm stressed, only car for
me and kids, car doesn't smoke, run ruff, no steam
under hood,  the coolant top isn't even too hot to
unscrew AFTER the car has over heated. What do I
do PLEASE I have kids to get to school and low
income.

3 Answers

90,445

Sounds like the typical Northstar engine problem, blown head gaskets due to the head bolts pulling out, no amount of sealant will work on that, the problem is the car isn't worth much with the current problems and really not worth fixing. Maybe you can find a Northstar lover and sell it too them and hopefully get enough to buy a cheap running car to get you around, or a possible trade out of yours into something running. Your really in a tough spot with a high maintenance vehicle with trouble and no real money too move on too something else more feasible.

5

sounds as though it doesn't have enough coolant also did you follow directions

5

have you car pressure tested to see what's leaking. I had the same problem and thought is was the head gasket of my 03 but found out the radiator had a leak. Replaced it just before I put the stop leak in and have no problems. If the head gasket, look on the internet, there is a special stop leak for north star engines, cost about $180.00. I would change oil and trans fluid after a over heat

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