car wont start after i changed the thermostat

Asked by Nov 26, 2016 at 05:54 PM about the 1999 Pontiac Bonneville 4 Dr SE Sedan

Question type: Maintenance & Repair

the car was over filled with oil. it was driven
about 20 miles before i discovered the
problem. i took it home and changed the oil.it
did not overheat at any point it has started fine
since but the temperature has been going up
quickly. so today i changed the thermostat and
seal and re filled it with coolant then it wouldnt
start anymore. also i could tell the thermostat
was the problem because the radiator hose
going to it was vacuuming closed when it was
running

1 Answer

74,515

How did you discover that you over filled the engine with oil? A thermostat has nothing to do with the engine starting so maybe you accidentally disconnected some wires. I do suspect that there may be other things going on. Maybe the engine has sustained some sort of damage.

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