Engine seemed to skip at about 70 mph and service engine light came on. Then seemed to skip several more times at different speeds. Ran fine. Just continued to skip as we drove.

Without error code it is hard to tell what the actual problem is? So, get your ride check for error code, any auto shop will do this free of cost. After getting error code, update your answer so that you can get the correct solution. Also you mentioned that Engine cylinder 6 is skipping strokes; the reason for the cause can be:

1. Faulty Spark Plugs

2. Damaged plug wiring

3. Faulty Distributor

4. Damaged Ignition coil

Next time the engine light comes on, get the codes pulled and get back to me

yep,that right,3500 = 70 mph.in5th gear. small engine/high revs.

the catalytic converter might be disabled due to a problem with ignition coils. They most likely need to be replaced. Here is a site (click link) with people describing similar problems, including the hesitation/miss/skip followed by the engine running roughly and cat problems. Engine coils are the most likely culprit, common with your vehicle unfortunately

sure it's skipping? Could be trans or torque converter hunting. Try locking out o/d and see if it stops or changes to a different speed but same rpm.

Hello there, One of the problems Jeeps do have is Transmissions. It is very typical of the sensors and solonoid packs to go bad, Also Jeeps as well have well know problems with the computer causing transmission issues as well.

I suggest taking it to a shop other than a parts store they are great for basic info but a repair shop can actually look at what each sensor is doing in real time.

You are on the right track and I would most definetly address this asap rather than causing internal transmission problems.

Good luck and I hope this helps.

not hard....the supercharger is basically a simple component.....there is an aftemarket company offering repair parts a lot cheaper than the dealer...sorry don't remember their name....

get a scanner check code sound like vechicle speed sensor.

If it's the check engine light, I'd look at the radiator for partial internal obstruction...In colder temps or running at speed it tends to run a bit cooler. RPM change may be computer attempting to compensate for this. I'm not a KIA expert, but this applies to any vehicle. Also check your coolant level. If it's low it will also act this way.