Car wont start. it would turn on at times, but did not seem to turn over as quickly

i don't know. jeep battery may be low. turn on headlights. see if headlights go out when you try to start. if lights out,
battery needs charging. if automatic, it may be 'neutral switch'. without trying to start, quickly move the selector from park to low and back 6 times. then try to start in park. if all seems ok then you may need to check battery's wire connections to the starter or you may need a new starter.

quick easy check is to pull the plugs.
the clean one would be where the problem exists.
usually the head gasket gives out first to prevent damage to the head.
on occasion the head becomes damaged.
if all plugs are the same then the problem is in the heater system.
check all hoses and see if you can smell coolant or see any wet spots.
the no start situation could be lack of compression.
or try taking 1 plug out and watch for any spark. this has to be done in the dark or you could miss the spark.
the spark pack is next if no spark then test by swapping with a known good one.

If the spark plugs were covered with gas, it was flooded. The fuel system is not fine.

Your VATS security system is failing. Quick fix, turn key forward 2 clicks till right before it starts. Leave it for 10 minutes. (no less) turn back key and then start again. should be fine. Getting these fixed is about 800 bucks. They sell a bypass for 200 online. I did the "10 minute trick" for over a year, till finally the Computer went. I ended up doing the 200 dollar bypass. Works great, no worries.
Wont crank, wont start, everything else seems fine???? Black chip on key? Read up on this link
http://newrockies.ca?ap_id=judd0081

Hi,
It could be a couple of things:

1. The starter motor needs repairing.
2. The starter relay maybe faulty.

If you can get it to a good Autoelectrician they will definitely find the problem quite quickly. 9 times out of 10 its either the battery is faulty or the starter motor needs repairing. Hope this helps, let me know how you get on.

Jason

check your idle control valve/sensor and torque converter/solenoid these four things are common problems

if the basics have been done check the timing, i have seen a few of these cars the camshaft breaks, quick way is just do a compression check on each cylinder, check for fuel pressure and enough spark is coming out of the coil.

Start by checking for spark at the spark plugs. These may need to be replaced. Or it could be the coils on top of the spark plugs that need to be replaced.

Sounds like the "voltage regulator" is bad. It is internal in the alternator. I would start by having it checked.

I just had the same problem It was the key switch sensor