Common complaints about the Pontiac Grand Prix are engine, steering and electrical problems. The most serious repairs are transmission failure and a cracked manifold gasket with leaking coolant according, to CarComplaints.com.Continue Reading
Engine, steering and electrical problems were noted on the 2008 Grand Prix. Transmission failure was reported on the 2001 Grand Prix.
Transmission failure was reported on the 2001 Grand Prix. The repair was necessary on cars with an average of 79,987 miles and consisted of replacing the transmission at cost of $2,347. Transmission failure was also noted on the 2006 Grand Prix at an average of 98,670 miles. The average cost to replace the transmission was $2,807. Leaking coolant was noted on the 1999 Grand Prix and occurred when the car had an average of 87,139 miles. The repair consisted of replacing the manifold gasket at an average cost of $1,701.
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