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Do you have fuel pressure?
Do you have spark to the plugs?
The vehicle needs spark, fuel, compression, and all at the correct time to run. I would assume the compression and timing are ok as it ran fine the day before so that leaves fuel and spark. If you have not replaced the plugs in the last 30,000 miles I suggest doing this first as worn plugs will cause the vehicle to not start when it is cold out.
now....if I gave it a tune-up and it still does not start...then what?
How will I check for fuel pressure?
Can you recommend a spark plug brand & #
Champion would be the brand, but I don't know the number off the top of mu head.
You will need a fuel pressure gauge to check the pressure.
This is what I did: I replaced fuel filter,plugs,wire,cap, rotor. I tried to start jeep.....it still did not start. I removed the middle spark plug and checked for spark. no spark. I removed the coil wire from the dis/cap and inserted a spark plug.tried to start.no start.
Then I assumed it was the coil. I replaced the coil and recheckedd for spark. no spark.
I disconnected the battery hoping that it would reset the computer. no luck.
Now I am stumped what else could it be........?
Do you have power going to the coil?
Starting to sound like a bad cam sensor or crank sensor......