1998 Pontiac Grand Am
3400 6 Cylinder
Repairs done prior = replaced engine with another engine with 70,000 miles
on it about 1 year ago.
Done to repair = New Thermostat. New Water Pump
tech = JK
question = My Grand Am is overheating. It only begins to overheat if
you drive it as long as it sits it won't overheat. The leakage is coming
out of the overflow hose. The large black hose on the drivers side
under the hood is hot but I can also squeeze that hose. I was told that I
should not be able to squeeze that hose it should be hard. The oil and
Antifreeze is not mixing. Do you think it could be my Radiator although
it's not leaking, could it be clogged? What else do you suggest I try?
JK:
If the car is overheating and boiling over from the overflow, then you may
have a bad head gasket. Head gaskets push combustion gas into the
cooling system, and cause the coolant to boil over the overflow. Sometimes
the engine is not even overheating. The pressure in the system causes it to
boil out. First try a new radiator cap. Then have the spark plugs inspected
for signs if burning coolant. Inspect the radiator for internal restriction or
have it flushed out.
The upper hose being rock solid depends on the coolant temp. The higher
the temp, the higher the pressure.
3400 6 Cylinder
Repairs done prior = replaced engine with another engine with 70,000 miles
on it about 1 year ago.
Done to repair = New Thermostat. New Water Pump
tech = JK
question = My Grand Am is overheating. It only begins to overheat if
you drive it as long as it sits it won't overheat. The leakage is coming
out of the overflow hose. The large black hose on the drivers side
under the hood is hot but I can also squeeze that hose. I was told that I
should not be able to squeeze that hose it should be hard. The oil and
Antifreeze is not mixing. Do you think it could be my Radiator although
it's not leaking, could it be clogged? What else do you suggest I try?
JK:
If the car is overheating and boiling over from the overflow, then you may
have a bad head gasket. Head gaskets push combustion gas into the
cooling system, and cause the coolant to boil over the overflow. Sometimes
the engine is not even overheating. The pressure in the system causes it to
boil out. First try a new radiator cap. Then have the spark plugs inspected
for signs if burning coolant. Inspect the radiator for internal restriction or
have it flushed out.
The upper hose being rock solid depends on the coolant temp. The higher
the temp, the higher the pressure.
Other related articles:
How to Adjust Valves Pushrods After Intake Gaskets on 3.4L
top of motor tore down for oil getting in coolant . Gaskets
found bad at coolant jackets. To replace intake gaskets what is the
procedure for installing correct length push rods...
top of motor tore down for oil getting in coolant . Gaskets
found bad at coolant jackets. To replace intake gaskets what is the
procedure for installing correct length push rods...
1997 2.4 Has Several Oxygen Sensor Codes
Check engine codes = system too lean bank 1, circuit no activity detected
bank1 sensor 2, 02 heater circuit bank 1 sensor 2, H025/025 insufficient
switching sensor 1 or bank 1...
Check engine codes = system too lean bank 1, circuit no activity detected
bank1 sensor 2, 02 heater circuit bank 1 sensor 2, H025/025 insufficient
switching sensor 1 or bank 1...
1997 ETS and Check Engine Light on. What Sensor
The check engine light can come on for many, many different reasons. Step one
is to have the codes scanned. This can be done for free at most large...
The check engine light can come on for many, many different reasons. Step one
is to have the codes scanned. This can be done for free at most large...
2002 Grand Am SES p0300 p0404. EGR Catalytic Converter PCM
The thing surges,sputters, and just flat runs bad. Has no power to pull itself up
hills. If I drive it like there's an egg under the gas pedal, I can run 80 mph on flat
ground easily. Start up a grade...
The thing surges,sputters, and just flat runs bad. Has no power to pull itself up
hills. If I drive it like there's an egg under the gas pedal, I can run 80 mph on flat
ground easily. Start up a grade...
A few More Pontiac Grand Am Car Repair Questions
