check engine light

[jfclancy]

Have had recurring problem with check engine light .
Error code varies between no 8 cyl and o2 sensor but goes away with the adding of rxp. tried Startron worked also.Very confusing, car runs fine with almost 70,000 miles on it had since 2003. any suggestions.

joe clancy:beer::bigcry:

[martyo]

Pull the code and report back to us.

[Limited360]

Codes requires then we diagnose


Sent from my iPhone using Tapatalk (http://tapatalk.com/m?id=1) so I may sound retarded.

[SpartaPerformance]

Seems to be that adding fuel additive cures the problem? Where do you add it? Codes would help more with diag.

[jfclancy]

P0308 P0316
OFF and on for several years but now the gas additive
does not work.
thanks in advance
joe clancy

[RubberCtyRauder]

P0316 is, I believe, a misfire at startup and the 08 code is for misfire at cylinder 8. could be bad plug, coil, coil boot. An option would be to swapped coil 8 to another one and see if the code follows to that cylinder. Then you know it is prolly the coil/boot.

Are using gas addictive all the time? Car should run fine on 91 min. preferably 93 octane.

[jfclancy]

ADD to gas tank
swapped out plug,coil, and wires for @ 8 cyl
no joy of course that was 20 months ago
was told to run it till it self distucts

[RF Overlord]

swapped out plug,coil, and wires for @ 8 cyl
Do you mean to say you replaced the plugs and coils on all 8 cylinders, or just #8?
was told to run it till it self distuctsThat was bad advice...

[jfclancy]

Took car to ford dealer,failed compession on #7 and#8 cyl
scoped both 7 appeared ok 8 had scratches on ccyl walls.
They want 7500 fo a replacement engine. Is that a good price?
comes with 3 year unlimited mileage warranty.

[Jeffonebuck]

6k would be a adequate price,,,4k for motor,,,1k to 2k for instal and miscellaneous parts fluids etc. depending on the shop and reputation


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