Cherokee problem
#31
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Re: Cherokee problem
F. Robert Falbo did pass the time by typing:
> It wasn't helpful... I'd already had her do it and it came back 55. Si I
> told her to run the code again when it was acting up again. Nothing yet.
Ok.. 55 = end of codes.
That leaves two more areas to consider. Fuel and spark. A failing
coil will cause stammering, a plugged fuel filter will limit speed and
contaminated fuel will cause all sorts of bucking, especially if she
got a tank of water/crud. Neither fuel nor spark problems will set
codes in that model year.
Unless the fuel filter has been replaced recently I'd have her do
that too. easy job, just need a couple of rags to fend off the fuel
drips.
This isn't cheap (about 100-150) but it is very effective in
cleaning the fuel rail/injectors/valves/and on back.
http://www.carbontune.com/
Most shops can also do a leak and flow test on the injectors.
But try the filter first.
Coils are funky. While there is a resistance range I've found
that the resistance can be in spec and the coil still fubar.
This little gizmo works well and it's cheap. 10$ or so.
http://tools.batauto.com/index.php?c...on=show_detail
--
DougW
> It wasn't helpful... I'd already had her do it and it came back 55. Si I
> told her to run the code again when it was acting up again. Nothing yet.
Ok.. 55 = end of codes.
That leaves two more areas to consider. Fuel and spark. A failing
coil will cause stammering, a plugged fuel filter will limit speed and
contaminated fuel will cause all sorts of bucking, especially if she
got a tank of water/crud. Neither fuel nor spark problems will set
codes in that model year.
Unless the fuel filter has been replaced recently I'd have her do
that too. easy job, just need a couple of rags to fend off the fuel
drips.
This isn't cheap (about 100-150) but it is very effective in
cleaning the fuel rail/injectors/valves/and on back.
http://www.carbontune.com/
Most shops can also do a leak and flow test on the injectors.
But try the filter first.
Coils are funky. While there is a resistance range I've found
that the resistance can be in spec and the coil still fubar.
This little gizmo works well and it's cheap. 10$ or so.
http://tools.batauto.com/index.php?c...on=show_detail
--
DougW
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