by Michael Johnson <cds@[EMAIL PROTECTED]
>
Apr 11, 2008 at 10:27 AM
sanpablo wrote:
> The other day my check engine light came on. Car was still running
> fine except that the tach was jumping up and down with no real
> relation to my speed. I wasn't able to check anything that afternoon
> and didn't crack open the shop manual. The next day, back to normal,
> no check engine light. I haven't had a chance yet to hook up my code
> checker but I was wondering if anyone has experience with this?
> thanks
My guess is that some component is on its last leg and about ready to
expire or something needs a good cleaning. Check engine lights coming
on isn't necessarily the sign of impending doom. If the car runs
normally then I wouldn't be too concerned. Buy a code reader from the
auto parts store. They are dirt cheap for your model of Mustang. It
will point you in the right direction to find the problem. I have run
cars for thousands of miles with the check engine light on with no
problems. If the car runs fine, the gauges are showing normal and your
gas mileage isn't affected then it is likely something minor and you can
drive the car with the light on without causing any damage.
