Five problems related to manifold/header/muffler/tail pipe have been reported for the 1998 Ford Expedition. The most recently reported issues are listed below.
Plastic intake manifold failure resulting in repairs in excess of $1500.
I was driving on the freeway at 10pm, and heard a loud pop, then what sounded like I had no muffler from the engine. I looked in the engine, and could not really see anything because it was dark. I had to the vehicle towed because I thought I blew a rod, or a head. Once at the mechanic's, they saw that I shot out 2 spark plugs- the no. 3 and 4 still attached to the wires, and that there were no threads left. I am having them pull the head, and have plugs put in, so far the cost to date is $1200. If the plugs do not hold, or other ones blow- which could happen at any time, I will have to replace the entire engine . This will about $3000 this is a very common problem with Ford engines. Please do something about. Ford needs to take responsibility!!!!!.
: the contact stated the vehicle was leaking antifreeze onto the intake manifold behind the engine. An independent mechanic determined the upper part of the engine needed to be removed to repair the leak.
The car was under normal city driving conditions when the #3 spark plug was violently ejected from the engine. Although there was not a fire, with fuel air vapors being expelled from the empty spark plug hole and the plug and wire visible arcing in the engine compartment, there certainly was a possibility of a fire. I have contacted Ford motors customer relations directly to report this as a potentially dangerous design flaw, they flatly deny that there is any problem. Unfortunately, the cost of this repair can run between $3000 and $6000, which is probably why Ford has chosen to take the coarse of denial. At the same time they are denying that this is a hazardous design flaw, the have corrected the problem in replacement parts and in later model years.
1998 Ford Expedition eddy bauer losses power when accelerated over 3000 rpms, on what seems to be a misfire, I've taken it to different mechanics, I've had the coils and spark plugs replaced, I've spent over $2000 and problem still persists. I went to two different Ford dealers just to encountered the worst dealer serviced I've ever received in my life. . . They are no help. I am stuck with a car that I paid over $30,000 for that has defect problems that Ford is aware of but is completety unwilling to accept. This is definitely the worst investment I've ever made in my life, can anybody help me?. . . Please.