what would cause a inner manifold to crack, 85,000,00 miles on the car, bought it brand new. 8cylinder and is this the start of major problems.
inner manifold on 1999 Mercury Grand Marquis
intake manifold?? common failure for cracking. about a 500 to 700 job.
Ford has know that these manifolds where bad for years and will only replace the ones for fleet cars,taxis and police.The new ones have a medal front part.Go after your dealer.