Question about 1998 Pontiac Grand Prix
Temperature gauge will go up very high within a few min. of running the car at this time the low coolant light is not on then within a few more minutes the temp will come way down and the low coolant light will come on. There is plenty of coolant in the vehicle, we have replaced the water pump, radiator cap, supply hose from the reservior as well as checked the thermostate. I even made sure there was no air in the lines. Please, help!
YOU NEED TO REPLACE THE UPPER INTAKE MANIFOLD. ALSO, YOU WILL NEED TO REPLACE THE LOWER INTAKE MANIFOLD GASKETS. THIS IS A MANUFACTURING FLAW. THE PLASTIC INTAKE CRACKS CAUSING AN INTERNAL COOLANT LEAK. YOU CAN RESEARCH THIS ON LINE.
Posted on Apr 30, 2009
Stronger machined intake manifolds are availible from www.intense-racing.com and www.zzperformance.com
Posted on May 02, 2009
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Posted on Jan 02, 2017
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