I took my 2000 Mercury Grand Marquis to a repair shop when the check engine light came on,they found water in the spark plugs,they told me that i needed a new manifold,does that sound right,or do i just need a head gasket?

Water in spark plugs

oldtimer-11 March 27, 2010, 7:59pm 4

They have had a lot of trouble with the plastic intake manifolds on these leaking coolant into the engine so yes, you probably do need your manifold replaced.