The valve cover gaskets may leak oil into the spark plug wells, shorting out the spark plugs, causing a misfire, and illuminating the Check Engine Light. Commonly the spark plugs and ignition coils or wires will require replacement, along with resealing the valve cover to correct this concern.
Resources for the Repair and Maintenance of your 2004 Ford Thunderbird
2004 Ford Thunderbird
2004 Ford Thunderbird Problems
There may be an extended warranty on the ignition coils - see your Ford Dealer for more information-Thanks John B for this information!
Water or oil may enter into the ignition coil cover and the spark plug bore, causing a misfire and illuminating the Check Engine Light. A coil with improved water and oil sealing is available and should be installed.
The valve cover gaskets may leak oil into the spark plug wells, shorting out the spark plugs, causing a misfire, and illuminating the Check Engine Light. A misfire code is stored in the computer
2004 Ford Thunderbird Recalls (Recent)
RepairPal Expert Overview:
Ford has recalled certain 2004 Taurus, Thunderbird, and Mercury Sable vehicles due to an inadequate weld on the front seats. In a collision, the seat may not perform as designed, which could result in injury. Dealers will replace the upper support assembly on the power seats.
2004 Ford Thunderbird Questions and Answers
How long should this take?
engine misfire , rough running condition cold start a rattle noise been in shop for three weeks cost me $2,000.00 for a diagnose still can't find where the noise is coming from.
coil on plug...
Leaking oil from oil filter where meets adaptor. Started after last oil change. Using motorcraft Fl-2021 oil filter
after moving fuse to fix heated seats (panel @ passenger feet area) the driver window works fine except when its all the way up and you open the door, it's supposed to go back up but it doesn&...
2004 Ford Thunderbird Reviews
I have a 2004 T Bird. With 14,200 miles and started missing under acceleration. Took it to my Ford Dealer in Stockton, Ca.
It was two coils and the window washer container and they replaced them. Gave me a new Mustang to drive home. I live 65 miles away from the dealer. No charge for anything except the gas I used.
There is a Ford warranty on the 2002--2004 Thunderbirds for 100,000 miles or 10 years. The Dealer was great. Said come back if the problem recurs. No Charge just a handshake.
Cy in CA.
ABS Light came on @ 22K miles. This was a $450 fix (one wheel only D/S front) because Ford no longer stocks the sensor only as a repair part. The whole assembly had to be purchased. I recently found a TSB outlining Fords service requirements of this part. A small hole is needed to be drilled at base of hub assembly and wheel sensor need to be changed. However this was all discovered after warranty expired. Has anyone been re-imbursed by Ford for this?
Also this was marketted and priced as a premium vehicle but lacks premium features such as memory seats associated with the key fobs allowing a two driver family to have their settings saved. A Jeep Grand Cherokee has this featur but not a Ford T-Bird? Why isn't there a Factory fitted GPS unit available to, didn't Lincoln LS owners have this available in 2004 or 2005? Seems at the time Ford was ignorant of the profits available with these expensive GPS toys.