Are there any problems with the intake manifold?
Are there any problems with the intake manifold? Intake manifold problems. Common problems with intake manifolds include leaking gaskets, carbon build-up and issues with intake tuning valves. In some cars worn-out intake manifold gaskets (in the photo) can cause vacuum leaks. This can cause rough idle, stalling as well as the Check Engine light coming on with the codes P0171 and P0174. How much does it cost to replace an intake manifold? You can expect a total cost of 300$ to 1100$ for an intake manifold replacement. This cost differs a lot depending on the car engine and car model...