Why is my Pontiac engine not cooling properly?
As displacement got larger, compression went higher, and engine heat increased to get better performance, it may be that the cylinders were getting inadequate cooling – which would likely not show up on the temp’ gauge but would show up as piston failure in “stressed” engines.
How does the Pontiac engine cooling system work?
COOLING SYSTEM CIRCULATION Pontiaccooling system uses reverse flow circulation for maximum cooling efficiency. In reverse flow, cooled water from the radiator passes first to the cylinder heads, which are the hottest parts of the engine, and then to the cylinder block which is the coolest portion of the engine.
When did Pontiac stop using reverse flow cooling?
In 1960, Pontiac abandoned the reverse flow system in favor of “conventional” flow where cooling water enters the block first and cools the cylinders — then all the water flows into the heads, cools the valves, and returns via the intake manifold to the radiator.
Where are the cooling ports on a 1960 Pontiac?
Ports towards front and on bottom of deck are smaller on the 1960 block than the reverse flow blocks. This obviously is to force more water to the back of the engine and to lower side of heads to provide controlled cooling for the 1960 engine.
As displacement got larger, compression went higher, and engine heat increased to get better performance, it may be that the cylinders were getting inadequate cooling – which would likely not show up on the temp’ gauge but would show up as piston failure in “stressed” engines.
COOLING SYSTEM CIRCULATION Pontiaccooling system uses reverse flow circulation for maximum cooling efficiency. In reverse flow, cooled water from the radiator passes first to the cylinder heads, which are the hottest parts of the engine, and then to the cylinder block which is the coolest portion of the engine.
In 1960, Pontiac abandoned the reverse flow system in favor of “conventional” flow where cooling water enters the block first and cools the cylinders — then all the water flows into the heads, cools the valves, and returns via the intake manifold to the radiator.
Ports towards front and on bottom of deck are smaller on the 1960 block than the reverse flow blocks. This obviously is to force more water to the back of the engine and to lower side of heads to provide controlled cooling for the 1960 engine.
What are the symptoms of a bad coolant temperature sensor?
Hence, it is advised to have your car inspected right away to avoid any serious problems. Here is a more detailed list of the common symptoms of a bad coolant temperature sensor. One of the first symptoms you will notice is that the check engine light will activate.
Why does my car sputter when I drive?
Driving should be smooth. But, if you are driving and your car’s engine starts sputtering the first cause of concern would be low fuel. However, if your fuel gauge is full it could be a symptom of further engine problems. A blocked fuel injector can prevent fuel from reaching the combustion chambers.
Why does my 1999 GTP engine keep sputtering?
My 1999 GTP experienced the sputtering problem at 28,000 miles and it was the result of a defective wiring harness. I assume this to be very unusual but it can be the cause. Best of luck. 30 people found this helpful.
Hence, it is advised to have your car inspected right away to avoid any serious problems. Here is a more detailed list of the common symptoms of a bad coolant temperature sensor. One of the first symptoms you will notice is that the check engine light will activate.
What causes a car engine to make a sputtering noise?
The car has a set of vacuum hoses that, with time, develop leaks. This will cause the engine to produce a sputtering sound when the air-fuel mixture gets too rich or too lean. 4. Dirty mass airflow sensor The combustion chamber requires the right amount of fuel and air.
Why is the fuel gauge full in my car?
However, if your fuel gauge is full it could be a symptom of further engine problems. A blocked fuel injector can prevent fuel from reaching the combustion chambers. If the problem is not corrected immediately, it can lead to further engine damage. 1. Faulty spark plugs 2. Dirty fuel injectors 3. Vacuum leak 4. Dirty mass airflow sensor 5.