This is strangest thing. I live in Florida and my truck recently started acting up. My truck is now only starting when it's high noon and the sun is beating on her. She refuses to crank in the middle of the night them the temp has dropped a lil bit and it's really humid outside! Does anyone know what this could be? At first i thought is was blocked fuel line and since I operate wreckers all day I towed the truck home late night. I bounced her a little bit on the boom and she almost cranked but stopped. The next day she cranked up in the morning, I went to work around 2:30, 3:00am when I was headed home she doesn't want to start! Now this is the same story every day and sometimes she won't start at all! Please help!

99 dodge ram 5.9L Automatic 4X4

 

Get battery and starter checked its free at autozone or advance

 

sounds like a moisture issue check the ignition system..cap rotor and wires for cracks or wear..

 

the starter and battery are perfect. the truck turns and cranks perfectly. she doesn't fire up though. i'm gona check the fuel press to see if she's around 49 but i honestly doubt it's fuel press. I've been doing some research and I'm not sure if it may be her crank sensor. The last time the cap, rotor and wires were replaced was about 3 years ago. I had a body shop and sold the truck to a client and did all the maintenace on her. the dude went bankrupt and bought it back from him and i always did the maintenance on the truck even when it was previously owned. i'm gona see if there is any spotting on the wires during the day when i inspect the whole engine. She was running perfectly and one day just acted up out of the blue!

 

Had similar issues with mine back when I lived in Alabama. Thought it was the IAC so I swapped my IAC and still had same issue so since my TB looked like crap I took it off for a good cleaning and it fixed my problem. When yours won't start have you tried to give it a little gas and see if you can get it to run? A little more descrpition on what it does when it won't start.

 

ok I figured out she is not getting any spark from the coil pack to the dist. i changed out the soil pack but still no spark? Could the next possible issue be the crank sensor not sending the pulsations to the coil?