Having problems with your 2003 Ford Taurus ?

2003 Ford Taurus cylinder misfire #1 and #5 code came up and 1st 1000 misfire. car is running very rough. car cant accelerate good. check engine light is flashing .... also rotten egg smell

Posted / edited by AnonymousUser on : 21-01-2019

Answers :

Usually the odor will come from misfires. Check to see if you are getting enough spark to the plugs. ALso check the spark plugs. See if there is rust built up on the coils to that cylinder.
Had a similar issue with a 2003 ford taurus. Error codes of p305 misfire on cylinder 5 and first 1000 rotations. It did not smell like eggs. Rough/vibrating idle and lacking power at times.

Replaced spark plugs and wires. On the mine a 2003, I needed to remove the upper intake manifold, i believe it is called. Note not to pull out tubes on bottom when you life. This was to get at the rear spark plugs. 10mm 8mm 7mm and a flat head screw drive is all it took o and about 4 hours, im no mechanic : P I also used a splash of seafoam on the EGR valve and replaced the seal. I was impatient so i didnt soak it like I had read.

Anyways, turns out one of the spark plug wire boots had burnt. Also, 2 were severely corroded. This seems to be the solution, a basic tune up i guess.
Repair Help & Product Troubleshooting for 2003 Ford Taurus

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